Granatelli
Granatelli Valve Cover Gaskets 640371
Granatelli Valve Cover Gaskets 640371
Part number: 8Y4EH
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- Ships direct from the brand or supplier
- Tracking emailed when it ships
- Free fitment check before you order
Valve Cover Gaskets 640371 from Granatelli. Highlights include + Center Bolt Mounting and + (2) Outer O-Ring Seals - Replaces GM #12560696. Replacing a gasket is usually more labor than parts, so it pays to replace any others you disturb on the way in.
Key features
- Valve Cover Gaskets and Seals Kit, Neoprene. All GM Gen. 3 & 4 Chevy LS & LSA, 4.8, 5.3, 5.7, 6.0, 6.2, 7.0L. - 2 Gaskets and 8 Seals
- Valve Cover Gaskets and Seals Kit, Neoprene. All GM Gen. 3 & 4 Chevy LS & LSA, 2 Gaskets and 8 Seals
- + Center Bolt Mounting
- + (2) Outer O-Ring Seals - Replaces GM #12560696
- + (8) Direct Replacement Cover Seals for LS Cover Bolt Stanchions
- (2) Direct Replacement Valve Cover Gaskets for LS Cover Bolt
- (8) Direct Replacement Cover Seals for LS Cover Bolt Stanchions
- Brand: Granatelli Motor Sports
Specifications
- Brand: Granatelli
- Part type: Gasket
Fitment
This listing does not name specific vehicles. Match the part number and the specifications with the part you are replacing.
OE and interchange numbers
640371, 802735040944
What it does
An old gasket gets hard and shrinks with heat cycles, which is when leaks start. A new gasket restores the seal. Using the correct part for your exact engine keeps oil pressure, sealing and timing where the engine was designed to run, and doing related parts at the same time saves taking it apart twice.
Installation & tips
- Clean both mating surfaces completely and follow the bolt torque and sequence for your engine.
- Sealant where called for: Some joints need a dab of sealant at corners or seams; others must go on dry.
- Bolts and grommets: Rubber grommets and old bolts are worth replacing if they are damaged.
- Put the new part next to the old one and compare the shape, mounting points and connections before you install it.
- Work on a cool engine with the vehicle secured, and use a service manual for your vehicle for torque specs and procedures.
FAQ
Can I install it myself?
Many owners do this job at home with basic tools and a service manual for their vehicle. If you are not sure, have it fitted by a qualified mechanic.
What should I check before ordering?
Compare the part number, specifications and fitment on this page with your vehicle and with the part you are replacing.
Before you order
- Measure the part you are replacing and compare it with the specifications above.

About this gasket
Replacing a gasket is usually more labor than parts, so it pays to replace any others you disturb on the way in.
Fitment notes
- Specs, lead time and warranty come from Granatelli and can change. The details above this guide are the latest we have.
Not sure it fits? Tell us exactly what you drive and we'll confirm fitment first. It's free and saves a return.
Ask about fitmentParts that usually go with it
- Sealant where called for. Some joints need a dab of sealant at corners or seams; others must go on dry.
- Bolts and grommets. Rubber grommets and old bolts are worth replacing if they are damaged.
More for your car: Valve Cover Gaskets · Engine
Questions about gasket
Will this fit my car?
Do I need sealant with this gasket?
Can I reuse an old gasket?
Where do specs and warranty details come from?
Questions & answers
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