Shop a Movie

Customer / Manufacturer Quotes about Datsun Parts

How to use this website

SECURE ORDER FORM

Frequently Asked Questions

Why Buy From Datsun Parts?

Customer Rewards Program

Restoration Products

Nissan/OEM/AfterMarket Differences

Engineering

Ordering, Shipping, Returns, Policies

Warranty Return Policy

Returns / Important

Parts Purchasing Department

Mission Statement

Limits of Liability Statement Important Read

Charitable Giving

Gallery of Fine Cars

Products
Cars For Sale Recommended Installers Lifetime Warranty Special Order Items From Japan Sale Items New Products Consignment Parts New Old Stock Parts Monthly Specials
Parts Category List
Axle Seals Body parts Books / Literature Brakes Brakes 1500 Brake Kits & Packages Cables Carburetor R16 Carburetor U20 Carburetor Kits & Packages Carburetor Mikuni Solex Clutch Cooling Cylinder Head G15/R16 Cylinder Head U20 Dash Differential Electrical Electrical Firing Electrical Switches Electrical Other Emblems Engine 1500/1600 Engine 2000 Engine Timing Components 2000 Engine external Engine Kits & Packages Engine Room Decals & Stickers Engine Seals Exhaust Exterior Trim Fuel Systems Front Axle Gaskets Gaskets Carburetor Gaskets Engine Gaskets Transmission Differential Glass Handles & Latches Heater Interior Interior Trim Z Car Interior Fairlady 310 Interior Interior Kits & Packages Lamps & Lights Locks Knobs Mirrors Rear Axle Rubber Parts Rubber Kits & Packages Soft Tops Steering Steering Kits & Packages Suspension Suspension Kits & Packages Transmission 4 Speed Transmission 5 Speed Transmission Kits & Packages Transmission Seals Used Parts Wheels Weatherstripping Weatherstrip Kits & Packages Wiper & Washer Material & Carpet Swatches

Nissan Parts Dump

Dash Comments

Map to our location

Home

ImagesCategoriesDescriptionPrice

Cylinder Head U20
Restoration Products
Partnumber: 1152
Datsun Roadster U20 Cylinder Head Cam Tower Shim - Set of 5 AFTERMARKET USA

U20 CAM TOWER SHIMS

High Quality Aluminum. These Cam Tower Shims are precision machined.To date: Quick books says over 200 sets sold! Cam Tower Shims are used to make the upper chain tight again when a cylinder head has been overly-planed. It should be noted that most of the time cylinder heads are surfaced on the bottom. However, there are times when they are surfaced on the top. It may be necessary to use our shims in conjunction with one of our thicker head Gaskets to restore accurately the same amount of material to each side of the cylinder head that was removed. Use the guide below to determine how much has been surfaced off the top of your cylinder head.

Sizes available:



.025 Order by PART# 1152A

.032 Order by PART# 1152B

.040 Order by PART# 1152B4

.048 sometimes .050 Order by PART# 1152C

.060 Order by PART# 1152D

GUIDE: This is a simple guide to determine what size cam tower shims you need or if you need them at all. When a cylinder head becomes warped the top will warp up in the center like a banana. Most, not all, machine shops will surface the top of the cylinder head to get the head flat again. A good machine shop will always minimum surface the cylinder head to make it flat and not be arbitrary about how much they will remove. After checking and shimming the fixture holding the head, they will pass the cutter over the warped area removing the excess material. In performing this procedure all of head bolt hole recesses, the ones on top of the head NOT the cam towers, in the center area, will be less in depth than the two head bolt recesses at each end of the cylinder head. The depth of the holes are measured from the, top, machined surface of the cylinder head casting to the, bottom, machined surface of the head bolt hole. A little tricky to compute the number at the front of the cylinder head.
Subtracting the depth of the center holes from the following number: .480 will give you how much has been surfaced off the top of the cylinder head in its life time.EXAMPLE: Depth of the inboard holes .440 subtracted from .480 = .040 shims needed. To configure whether you need a thicker head gasket you would use these numbers in relation to the original thickness of a U20 cylinder head which is 4.528 to compute what was surfaced off the bottom. It is possible to have more surfaced off the bottom of the head than the top. Click here, to view the thicker U20 head gasket.

NOTE:Please also look at PART# 2551 to determine if you need thicker lash pads if you are using a re-ground cam or thicker cam tower shims.

$50.00



Cylinder Head U20
Engine 2000
Partnumber: 1190
Datsun Roadster 2000 Head Stud & Nut Kit Set of 10 Genuine ARP AFTERMARKET USA

We are an authorized dealer of ARP Fasteners. When purchasing ARP fasteners make sure you put the zip code of the person you are buying from in ARP's dealer search to see if they are listed as a authorized dealer to make sure you receive genuine ARP products. If they are not listed they may be selling Chinese copies including fake artwork often displayed on their web-site.
Any questions go to ARP's web-site where we are listed as a authorized dealer


1st Photo shows detail of ARP genuine stamp on the long bolt and also some of the short bolts that are included in this 10 piece kit

U20 High Performance Block Stud & Nut 10 piece kit. Far superior to original head bolt method of fastening the head to the block. No needless re-torquing of the head required. NOTE: Re-use your old washer set as this kit does not come with washers.

Rated at a tensile strength 190,000 to 200,000 PSI. Material 8740 Chrome moly. U.S. made. These studs have a hex in the end to allow the user to run the studs down into the block. 12 point flat bottom nuts included.
These studs eliminate problems associated from head bolt use. Common problems include bolt breakage, block and thread damage, less clamping force and bolt stretch, constant re-torquing of cylinder head, rear oil gallery leakage. Keep that head from moving around. General fastener torque spec. 70 to 80 Ft Lbs Ultra torque lube. Be sure to add on Ultra torque lube Part# 2464 when purchasing this kit.

THE FOLLOWING INSTRUCTIONS ARE FROM ON HIGH- ARP ENGINEERS FORWARD TO US: Please be sure to clean out the block holes. These are studs are a free floating fastener so it is not necessary to Lock Tite or bottom them out and torque the studs into the block. However, it is important to have as much threaded engagement in the block as possible. The stud should not pass through the nut. Doing so will lessen the threaded engagement of the stud in the block. 3 rounds, crossing pattern on the head up to 80 ft lbs. NO need to re-torque like with old style head bolts.

SPECIAL NOTE: Original U20 head bolts were un-heat treated and have a tendency to stretch and or break off in the block. Early head bolt head diameter measures .622. Later, better quality, replacements that are currently available are $240.00 for the complete set and they measure .702. If you have the early head bolts we strongly recommend replacement with our stud kit.

SPECIAL NOTE: All of the head bolts on the passenger side of the block are the same length. It is not necessary to be concerned about the stud length where the, cylinder head, locating dowels are placed. We have found that there is enough, threaded engagement in the block, to allow a proper torque.

NOTE:Please also look at PART#'s 1152 & 2551, for important information, to determine if you need thicker lash pads if you are using a re-ground cam or thicker cam tower shims.

$140.00SET


Gasket Engine
Cylinder Head U20
Partnumber: 1332
Datsun Roadster SUPER DELUXE 2000 SU U20 Head Gasket - Set
NISSAN & AFTERMARKET USA

67 1/2 - 70 SU U20 Quality Head sets

Lots of extras just like our full engine sets featuring nitrile heat resistant rubber gaskets.

Here are your gaskets as pictured: Premium cylinder head with sealing material front and back, .093 metal sheath composite int/ext, .093 3 hole collector for header, valve cover, inspection cover, PCV fitting, upper tensioner, upper tensioner inner (NOT SHOWN), 8 - valve stem seals, 2 - valve cover grommets - no longer included, Nitrile rubber oil cap, nitrile radiator cap, 2- thermostat housing with metal ground tab, 4 - .062 phenolic, 2 - Nitrile rubber carb to air filter. Carb phenolic block gaskets, 2 - Carburetor air filter housing.



NOTE: To order this kit with the thicker, Part# 1698 U20 head gasket, Order by PART# 1332TSU - $461.00
$310.00

Gasket Engine
Cylinder Head U20
Partnumber: 1333
Datsun Roadster SUPER DELUXE 2000 U20 Solex Head Gasket - Set
NISSAN & AFTERMARKET USA

67 1/2 - 70 SOLEX U20 Quality Head sets

Lots of extras just like our full engine sets featuring nitrile heat resistant rubber gaskets.

Here are your gaskets as pictured: Premium cylinder head with sealing material front and back, .093 re-usable metal sheath int/ext, .093 3 hole collector for header, valve cover, inspection cover, PCV fitting, upper tensioner, upper tenisoner inner (NOT SHOWN), 8 - valve stem seals,2 - valve cover grommets - no longer included, Nitrile rubber oil cap, nitrile radiator cap, 2- thermostat housing with metal ground tab, 4 - rear carb insulator phenolic 4 - front carb insulator phenolic, 2 - carb to air filter.

Late addition, not pictured, part 1671 solex water tube manifold gaskets added to this

NOTE: To order this kit with the thicker, part#1698 U20 head gasket, ORDER by Part # 1333TSOL - $490.36
$300.36

Cylinder Head U20
Partnumber: 1449
Datsun Roadster U20 Chrome moly Retainers / Accepts L-series Lash Pads (Set of 8) AFTERMARKET USA

67 1/2 - 70 U20 Chrome moly steel w/heat treating valve retainer for 11/32 stem valves - set of 8. Chrome moly retainers w/heat treating are safer when using higher spring rates for race applications as the heat treating is through the entire part. It is especially important in the area where the valve collets reside where greater strength is not only desired but required. This is just one of the reasons these Chrome moly retainers have been highly sought after over the years. Now back in stock! Works great with any Cam requiring alternate retainers to get the geometry correct.

Schneider's design allowed for an improved fit on higher spring rate aftermarket valve springs with larger outer and inner spring I.D.'s than the original Nissan valve spring set.

For stock Nissan springs Order by PART# 1449STK $120.00. Now you won't have to worry about a sloppy fit to any valve spring sets. It's that simple!
The 2 retainer sets offered allow the use of a variety of different thickness L-series lash pads on a U20 motor to enable the user to dial in after-market camshafts. The Schneider Cams, high hat, integral one piece design offers excellent side support for tall lash pads, (SEE PHOTO) was preferred and highly sought after for street use and in the racing community. Tried & true. Hundreds & hundreds of the 11/32 U20 versions of these beauties were sold with no issues, thousands of the L-series 8mm valve version were sold in the open market as well. Retainer accepts L-series lash pad thicknesses up to .300. Nissan & Our aftermarket style retainer sets installed height are 1.620 as per correct & proper original Nissan U20 specification. All spring forces and heights are the same as the original Nissan retainer.

Formula to determine approximate lash pad thickness required: Original lash pad thickness for the stock U20 cams = .078. Re-ground cams have a reduced base circle. Some camshafts have a base circle that is very reduced. The important thing to remember from this is to check each re-ground camshaft to get the proper lash pad thickness required. We can help you choose the correct lash pad to get you in the ball park. Other factors that will effect what size lash pad to use are related to the actual rocker arms being used. Not all rocker arms are made exactly the same and can vary from rocker arm to rocker arm. Depth of the valve seats, installed height of the valves can also effect what size lash pad should be used to obtain the correct "wipe area" on the rocker arm and the correct "lift value at the valve". The following is an example to show the math involved in determining the correct lash pad thickness required. FORMULA: Use the following example and plug in your own numbers. Base circle diameter of your camshaft .___ subtracted from the constant 1.310 = .____ divided by 2 = ___ + original lash pad thickness of .078 = ___ new lash pad thickness starting point. Select a lash pad thickness from our stock as close to this thickness as possible.
SEETEXT

Cylinder Head U20
Partnumber: 1494
Datsun Roadster U20 hardened Intake Valve Seats AFTERMARKET USA

U20 replacement premium quality intake valve seats. Theses seats replace the stock brass seats which are prone to dropping out causing damage. Composition: 42.0% Nickel, 7.5 % moly, 12.0% chrome, 3.0% silicon, 2.10% carbon, 2.0% vanadium remaining % iron & other elements. Be sure to replace the old brass seats at your next dis- assembly. Sold as a set of 4.

The O.D. of these seats are slightly larger than stock to, .003 to .004, to allow for the proper press fit into the cylinder head.
$54.00 set


Cylinder Head U20
Partnumber: 1500
Datsun Roadster 2000 Reground Rocker Arms (Set of 8)
2 piece & One piece rocker arms AFTERMARKET USA

U20 Reground rocker arms. 2 styles available.
Original factory rocker arms were one piece rocker arms that had a flash chrome surface over the casting that would wear off and the cam lobes, over time, would gall the rocker arm pad surface. That is why Nissan later made two piece rockers to replace the one piece.
One piece rocker arms that are merely ground/not coated will not last as long as coated ones.

Replace the style that is on your car

NOTE:Refundable core charge will be added to the cost of the rocker arm sets. Exchange the exact style ONE PIECE OR TWO PIECE as noted in rocker arm sets listed below.

PART#1500TP U20 reground TWO PIECE rocker arm (Set of 8) $208.00

PART# 1500DL: ONE PIECE COATED super slick beautiful finish rocker arm (set of 8) 215.00 1st photo
U20 reground with baked on dry lubricate to pad surface to prevent wear. Rocker arms are sand blasted with the correct and proper media. They are then properly solvent cleaned and sprayed with a moly dry lubricant coat and baked in an oven for 1 hour.
Non petroleum based moly lubricants are 100 times slicker in surface then a regular machined surface. Super slick = less heat which is the culprit in engine wear.

Rocker arms are reground by an experienced rebuilder that has been in business 50 years.
SEE TEXT

Cylinder Head U20
Partnumber: 1501
Datsun Roadster 2000 Rocker Arm NISSAN

New two piece rocker arm.
$95.00 EA


Cylinder Head U20
Partnumber: 1502
Datsun Roadster U20 Performance Solex B Cam 280 duration .460 lift
Not economy cam grind this a top quality, precision ground cam
AFTERMARKET USA

Nissan B camshaft was profiled by a prominent cam grinder who was responsible for supplying performance grind camshafts to various Nissan racing teams of the 60's and 70's. An identical master of the profile was made from an original Nissan B cam (SEE PHOTO). The exclusive master was contracted so as to grind U20 cam cores to the identical Solex B specification.

The most significant difference between the Solex B and the Solex C camshafts are mainly in the duration of the camshafts, the B being slightly less. The lift value is slightly less than the C profile as well.
Since Nissan supplied this camshaft in their Motorsports catalog its intended use was to be with the U20 Solex 4 barrel induction kit that was in production at the time, but can also be used with the SU carbureted version. I have personal experience with this camshaft and it is quite different than the Solex C cam. It is not a full race cam and is completely acceptable for use on the street.
Camshafts are in stock & ready to ship.

EXCHANGE REQUIRED CAMSHAFTS MUST BE RE-BUIDABLE WITH NO BROKEN LOBES OR GAULED BEARING SURFACES

30 DAY CORE RETURN POLICY AFTER 60 DAYS GOOD CORES RETURNED TO US , IN HOUSE CREDIT TOWARDS PARTS, NO REFUNDS TO THE CREDIT CARD!

6/01/17
$235.00



Cylinder Head U20
Partnumber: 1517
Datsun Roadster U20 Performance Solex C Cam 296 duration .480 lift
Not economy cam grind this is a top quality, precision ground cam
AFTERMARKET USA

An original, 13001-25510, Nissan C camshaft was profiled by a prominent cam grinder who was responsible for supplying performance grind camshafts to various Nissan racing teams of the 60's and 70's. An identical master of the profile was made from an original Nisan C cam (SEE PHOTO). The exclusive master was contracted so as to grind U20 cam cores to the identical Solex C specification. Included with each camshaft is information regarding a recommended starting point for the lash pad thickness required for the specific cam you will be receiving. Each lash pad set will differ as the base circle can vary slightly on cam cores. The lash pad thickness for the C cam is most often slightly more than the stock thickness lash pad.

The most significant difference between the Solex B and the Solex C camshafts are mainly in the duration of the camshafts. The lift value is slightly more than the B profile. Since Nissan supplied this camshaft in their Motorsports catalog its intended use was to be with the U20 Solex 4 barrel induction kit that was in production at the time. I have personal experience with this camshaft and it is quite different than the Solex B cam. It is not a full race cam and is completely acceptable for use on the street.
Camshafts are in stock & ready to ship.

EXCHANGE REQUIRED CAMSHAFTS MUST BE RE-BUIDABLE WITH NO BROKEN LOBES OR GAULED BEARING SURFACES

30 DAY CORE RETURN POLICY AFTER 60 DAYS GOOD CORES RETURNED TO US , IN HOUSE CREDIT TOWARDS PARTS, NO REFUNDS TO THE CREDIT CARD!
<
$235.00

Cylinder Head G15 R16
Cooling
Electrical Switches
Cylinder Head U20
Partnumber: 1532
Datsun Roadster Water Temperature Sender Nut NISSAN

671/2 - 70 1600 and 671/2 - 70 2000. Cylinder head water temperature sending unit nut and thermostat housing nut in the case of the 2000's.
$7.90

Cylinder Head U20
Cylinder Head G15 R16
Engine external
Partnumber: 1627
Datsun Valve Cover Oil Filler Cap NISSAN

Oil filler cap from Nissan. The gasket this comes with is cork. See our exclusive replacement part#1277. Click here to view this part.
$17.00

Cylinder Head U20
Partnumber: 1662
Datsun Roadster 2000 Intake Valve AFTERMARKET USA

2000 Intake valve. Valves are US made, Manley Performance, stainless steel with swirl cut back edge.
SI Valve blanks, that other vendors use, while being good valves, are made in China.

Criteria for clearances. .0015 to .002 clearance with guide
Be sure to check all clearances
CHEAPER IN FULL VALVE SET
$44.00 EA

Cylinder Head U20
Partnumber: 1663
Datsun Roadster 2000 Exhaust Valve AFTERMARKET USA

2000 Exhaust valve. Valves are US made, Manley Performance, stainless steel with swirl cut back edge.SI Valve blanks, that other vendors use, while being good valves, are made in China.
Criteria for clearances. .0025 to .003 clearance with guide
Be sure to check all clearances especially the exhaust
CHEAPER IN FULL VALVE SET


Nissan Valve Order by PART# 1663N $48.00
$38.00EA

Cylinder Head U20
Partnumber: 1665
Datsun Roadster 2000 Manley Stainless Valve Set- Stock Size
AFTERMARKET USA

2000 Intake & exhaust valve. Set of 8 Valves are US made, Manley Performance, stainless steel with swirl cut back edge.

These are not repurposed $5.00 SI Domestic valves cut down on someone's lathe. SI Valve blanks, that other vendors use, while being good valves, are made in China.
Manley only sells to legitimate businesses and not to people who work out of their garage.
$240.00

Restoration Products
Carburator Mikuni Solex
Gasket Engine
Gasket Carburator
Cylinder Head U20
Partnumber: 1671
Datsun Roadster U20 Mikuni / Solex Intake Water Tube Gasket AFTERMARKET USA (R/L/F)

Solex Intake manifold water tube. 2 required per car.
$6.50 EA

Engine Seals
Cylinder Head U20
Cylinder Head G15 R16
Partnumber: 1692
Datsun Roadster Valve Stem Seal - (Set Of 8) OEM MAKER TO NISSAN

671/2 - 70 1600 & 2000 OEM to Nissan valve stem seals
$49.00

Cylinder Head U20
U20 Carburator
Engine external
Partnumber: 1750
Datsun Roadster 2000 Su Pcv Hose AFTER MARKET USA (R/L/F)

67 1/2 - 70 SU 2000 Positive crankcase ventilation hose. These are being supplied now as outer rubber with inner cloth sandwiched and completely impregnated in between the rubber in the same manner as all of the newer Nissan radiator hoses, heater hoses and aftermarket hoses all sold as well by other vendors. Gee, guess the design is really good then! Rubber used is designated for oil resistance. Far superior to Nissan original where cloth webbing became so dry that it would make a crunching sound when squeezed. Squeeze yours! Nissan originals don't carry the lifetime warranty this one carries.Note: Fitting in picture is no longer provided
$69.00

Carburator Mikuni Solex
Cylinder Head U20
Engine external
Restoration Products
Partnumber: 1751
Datsun Roadster Solex Pcv Hose AFTER MARKET USA (R/L/F)

67 1/2 - 70 Solex carburetor positive crankcase ventilation hose. These are being supplied now as outer rubber with inner cloth sandwiched and impregnated in between the rubber in the same manner as all of the newer Nissan radiator hoses, heater hoses and aftermarket hoses all sold as well by other vendors. Gee, guess the design is really good then!
There is no pressure in this hose, but the rubber used is designated for oil resistance and the inner cloth offers additional strenth. Far superior to Nissan original where external cloth webbing became so dry that it would make a crunching sound when squeezed AND LEAK OIL EVERYWHERE.Squeeze yours! Nissan originals don't carry the lifetime warranty.Note: Fitting in picture is no longer provided
$69.00

Cylinder Head U20
Partnumber: 1820
Datsun Roadster U20 hardened Exhaust Seat rings

U20 premium quality exhaust Seat rings. Made of a superior alloy over the originals which are iron.Composition: 42.0% Nickel, 7.5 % moly, 12.0% chrome, 3.0% silicon, 2.10% carbon, 2.0% vanadium remaining % iron & other elements. Sold as a set of 4.

The O.D. of these seats are slightly larger than stock to, .003 to .004, to allow for the proper press fit into the cylinder head.
$54.00 set

Customer Rewards Program
Cylinder Head U20
Partnumber: 1838
Datsun Roadster U20 Bronze Guides - Set of 8 or In 4 packs of Intake or Exhaust
AFTERMARKET USA MACHINED - HIGH NICKEL MANGANESE SILICON BRONZE BROACHED ID MATERIAL FROM GERMANY

German silicon bronze guides. In photo Intake on top/Exhaust below. Nissan guides were mediocre brass and standard on the OD not providing adequate press for re-installation. Proper guide press fit is essential in rebuilds. Losing a guide in older engines is more common depending on how many rebuilds have been performed. These guides are slightly oversize on the O.D. to provide the correct press fit.

The longer, tapering, angle toward the end of the guide is the intake guide.
To order the intake or exhaust guides separately in (sets of 4) use the following part numbering and pricing.

1838INT $45.00

1838EXT $45.00


Special Note: These are not Harley Davidson Evolution guides that are carved up to work on a roadster. Our guides are custom made from a print especially prepared for us by a premier US guide manufacturer, SI in Simi Valley, in lots of 400 pieces
We don't have to pool our money with two other vendors in order to place an order with SI like other vendors.
We actually have money to run our business
$68.00(8)
Cylinder Head U20
Partnumber: 1841
Datsun Roadster 67, 68, 69 and 70 U20 Valve Spring Set

Datsun Roadster Nissan valve spring set. Know its Nissan as all there U20 springs were painted light blue on the ends. 1967, 1968, 1969, 1967
$299.00

Cylinder Head U20
Engine 2000
Partnumber: 2109
Datsun Roadster U20 Valve Spring - Set OF 8 AFTERMARKET USA

Valve spring kit. 8 inner and 8 outer springs.
$209.00

Cylinder Head U20
Partnumber: 2110
Datsun Roadster U20 Valve & Stock Valve Spring Set

U20 valve and Valve spring kit. 24 piece kit.


Criteria for clearances intake .0015 to .002 clearance with guide

Criteria for clearances exhaust .0025 to .003 clearance with guide
Be sure to check all clearances especially
$449.00
Cylinder Head U20
Partnumber: 2112
Datsun Roadster U20 Nisan Valve set NISSAN & Aftermarket USA

Datsun Roadster U20 Nissan 8 piece valve set with aftermarket springs.
$489.00



Cylinder Head G15 R16
Restoration Products
Cylinder Head U20
Exhaust
Partnumber: 2208
Datsun Roadster Smog Plug Inserts - Set of 4 AFTER MARKET USA

Datsun Roadster, set of four, smog plug inserts for 68 -70 1600 and 2000 cylinder heads.

These inserts were reverse engineered to screw into the ports in the head where the air injectors were installed as smog equipment. They have the exact thread and contour of the injectors and fill the entire cavity; both the threaded portion and the smooth bore. This completely eliminates that annoying �chirping� sound caused by engine exhaust passing over the tube, which creates a resonant chamber (like a badly played flute).GENERIC ALLEN HEAD SHORT PLUGS WITH NO EXTENSION WILL NOT SOLVE THE CHIRPING ISSUE. SHORT PLUGS ARE $1.00 EACH AT YOUR LOCAL PLUMBING SUPPLY
Once installed, you�ll be amazed at hearing only the smooth hum of the exhaust out the tailpipe. The clucking chicken in your engine will be dead and gone! Does not include clucking chicken. Comes with a full detailed instruction sheet.
NOTE: Another option is not Allen plugs Allen plugs do not have a chamfer to meet the angled machined area at the bottom of the casted hole in the cylinder head nor do they have an extension on the end to close off the smaller id hole where the pipe used to fit. These areas are what cause the chirping noise. Our inserts have these necessary additions. They were designed, blueprinted and manufactured for a specific purpose.

NOTE 1st PHOTO: The 1st part in the row is the original exhaust injector. It is in the photo group to show what is in your car that you will be removing and is for reference only.

Choke the chicken today!!

NOTE: Spare individual pieces available if you lose oneif you purchased this kit from us. Order PART # 2208EA $12.00
$41.00(4)

Cylinder Head U20
Engine external
Exhaust
Partnumber: 2275
Datsun Roadster 67 1/2 - 70 Intake/Exhaust Manifold 66 Piece Fastener - Kit NISSAN & AFTER MARKET USA

Datsun Roadster metric fastener kit. Included in the kit are the special M8 X 1.25 NUTS. These are the uncommon style nuts that accept the 12 mm wrench. All the correct washers, including the thick exhaust manifold washers are included as well. Kit does the entire intake and exhaust manifold. The fasteners for the carburetors are also included in the kit.
$31.90
Cylinder Head U20
Partnumber: 2427
Therm housing Stud U20 Cylinder Head

Therm housing Stud U20 - 2 required
$6.81EA.

Cylinder Head U20
Cylinder Head G15 R16
Engine 2000
Engine
Partnumber: 2464
Datsun Engine Fastener Ultra Torque Assembly Lube AFTER MARKET USA

Use assembly lube with all our engine fastener kits. Be sure to use the published torque ratings in our web-site at each fastener part number that references the Ultra torque specification.
$4.95





Customer Rewards Program
Cylinder Head U20
Restoration Products
Partnumber: 2510
Datsun Roadster 2000 Oversize Race Quality Valves
Set of 8 US MADE NOT IMPORTED
These are not foreign valves purchased from SI sent to Phil Wyatt for whittling in Arizona
Our sets running in cars for years!

$230.00REW Oversize U20 Stainless Steel alloy Race Quality valve set. Our valves are not regular commercial, two piece design, which can fail at the head
OUR valves were specifically designed by Manley Performance Products for us with Mark Degroff's recommendations who is a expert in engine rebuilding for 45 years
Not from blanks or from another motor
Intake on the left and Exhaust on the right. Swirl polished intake and exhaust valves, hard chrome stem through and through, NOT flash chrome. High flow head seat design, weight saving dished face, 50RC keeper groove & tip. Will not mushroom.

Intake diameter 1.845 - Original Nissan 1.815

Exhaust diameter 1.460 - Original Nissan 1.420

NOTE: No new seats need to be installed with these valves. It may be a good idea to install new seats for the intake if they are brass or if the seats are worn. Hardened seat part numbers are: 1494 & 1820. IN STOCK

Mark Degroff's Cylinder Head Service approved the drawings with a top valve manufacturer during the design process. Mark has been custom designing valves and has experience working with cylinder heads for 45 years

Criteria for GUIDE clearances: INTAKE .0015 to .002 /
EXHAUST .0025 TO .003

Be sure to check all clearances

Our valves are not Repurposed valves and we can prove it! 1 per customer
$245.00

Cylinder Head U20
Partnumber: 2551
Datsun Roadster U20 Thicker Lash Pad Sets - (SET OF 8)

"Using thicker lash pads for the U20 do NOT create any problem in terms of losing a rocker arm lash pad as most of the forces are downward" - From Dave Rebello master engine builder"
Heat treated, correct width for stock U20 retainer, lash pad sets. Works great with re-ground cams with reduced base circles, to correct the geometry between the rocker arm and the camshaft lobe. Selecting the correct thickness allows one to match the theoretical lift on paper with the actual dial indicated lift during mock up and assembly. Since there are no L-series lash pads under .150 thick available these lash pads will work with camshafts that require thicknesses less than .150 in order to obtain the correct wipe area, lift etc. of the cam you are using.

PHOTO: The 1st lash pad on the left is a stock U20 lash 2.0mm / .078

LASH PAD SELECTION NOTE: Camshafts are listed at part # 1499 & 1517. To figure out which lash pad to select based on a camshaft you have purchased from someone else please use the following formula. (Be aware that valve length, seat depth - installed height and individual ground or new rocker arms can affect geometry thus rendering a different lift value "at the valve" other than the theoretical lift values based on the cam card lobe lift multiplied by the 1.396 rocker arm ratio)
Mocking up the assembly, is of course, the last course in obtaining the wipe area you are looking for. Please keep this in mind when using the following formula.
FORMULA: Use the following example and plug in your own numbers. Base circle diameter of your camshaft .___ subtracted from the constant 1.310 = .___ divided by 2 = .___ + original lash pad thickness of .078 = .___ new lash pad thickness required. Select a lash pad thickness from our stock as close to this thickness as possible.

Choose your lash pads with care as they are NOT returnable.

The following parts numbers are for each lash pad from left to right starting with the second lash pad:

2.5mm / .099" Order by PART# 2551A

3.0mm / .118" Order by PART# 2551BC

3.2mm / .126" Order by PART# 2551C

4.2mm / .165" Order by PART# 2551G
$186.00

Engine Timing Components 2000
Cylinder Head U20
Engine 2000
Restoration Products
Partnumber: 2621
Datsun Roadster U20 Chain Tensioner Washer Shim Pack (3) NOT COPPER AFTERMARKET

Correct and proper reproduction washer set. Yes, when we had the upper tensioner commissioned for production again,(MUCHO BUCKS), we asked for extra washers.
Heat resistant rubber like original Nissan NOT copper washers from Home Depot. Copper will scratch the shaft thus reducing the pressure sealing of the smooth shaft to the smooth bore of the tensioner body
Reduces chain slap at start up and keeps the chain tight. NOT a generic, off the shelf, hard plastic washer. Exact to original in size and function. You may need an extra set if your chain is really lose. You can also use this on the lower tensioner foot as well.
$8.95 SET

Engine Timing Components 2000
Cylinder Head U20
Engine 2000
Partnumber: 2675
Datsun Roadster 2000 Upper Tensioner Shim Kit W/Gaskets Tensioner not included AFTERMARKET USA

Keep your upper tensioner tight and prevent the deadly death rattle that accelerates wear to your, expensive to replace, timing parts. A tensioner that sticks out to far will have to fill each time, thus moving from the relaxed position to the fully, extended hydraulic position, each time the engine starts, with the result of a rattling chain slapping against the guide rails and sprockets. Great little kit for those of you that can't afford new pieces or have worn pieces or an overly planed cylinder head resulting in the tensioner shoe sticking way out.
Directions: Start and run the engine until the oil gauge shows pressure, usually about 15 seconds to 30 seconds. The tensioner is last in line to receive oil pressure. Remove the valve cover and the front access cover. The upper tensioner should be tight against the chain and the chain should be tight on the other side of the cam sprocket. Measure the distance between the back of the shoe and the front of the cast tensioner housing and take note of the distance. Take one of the zip ties and work it through the front of tensioner and loop around the cast housing. Pull and tighten the zip tie as tight as you can make it. Put a rag underneath the tensioner area to keep the bolts from falling down into the engine. Loosen the two bolts and extract the tensioner. Hold the tensioner and cut the zip tie and remove the shoe. Add the washers included in the kit to make up the distance you measured. Put the other zip tie around the assembly and tighten. Reassemble the tensioner/spring, with the gasket supplied, into the engine and tighten down the bolts. Cut the zip tie and assemble the access plate with the new gasket.
$19.87


Cylinder Head U20
Engine 2000
Customer Rewards Program
Partnumber: 2743
Datsun Roadster 671/2 - 70 U20 Engine Fastener ADD ON Kit GENUINE ARP
AFTERMARKET USA

$180.00REW

We are an authorized dealer of ARP Fasteners. When purchasing ARP fasteners make sure you put the zip code of the person you are buying from in ARP's dealer search to see if they are listed as a authorized dealer to make sure you receive genuine ARP products.

U20 Engine fastener kit - Head stud, rod bolt kit, 4 - small end bushings w/ 2 - ultra lube. When rebuilding your motor add this kit on. Protect your investment. Don't use 50 year old fasteners on your expensive rebuild! NOTE: Small end bushings are included as the installation of the new rod bolts requires re-sizing the rod on the big end and it is prudent to also do the small end during rebuilding especially if you are installing new pistons.
$190.00

Engine Timing Components 2000
Cylinder Head U20
Partnumber: 2815
Datsun Roadster 2000 Upper Tensioner Shim Kit

3 shims, a rear gasket is supplied so you can renew the gasket & 2 tie strips are supplied when removing and re-installing the upper tensioners.
Before removing the tensioner, run the car to make sure that the tensioner is at maximum tension and has taken up the slack. Measure the distance from the back of the shoe to the body of the tensioner. This is the amount you will need to keep the chain tight.
Now remove the tensioner. Simply slide the tie strip through and around the body of the tensioner and close the shoe to the body. Put something under neath the body when removing the bolts so you don't lose anything down into the motor. After adding the shims repeat the process with the other tie strip to re-install the tensioner

This kit helps the death rattle.

06/29/17
$8.00

Copyright © 1996-2022 DatsunParts.com. All rights reserved.