Ultra-Seal Valve Cover Gaskets .312 Inch Thick Fits 1965-2000 Chevrolet 396-572 Mark IV/V/VI Big Block Mr Gasket

Part #: 5863

These are high quality Gaskets that works well on those hard to seal applications. The low density fiber & rubber blend Gasket material seals those minor head imperfections with a low clamp force.At .312 inch, the extra thickness can also offer slightly more clearance for roller rockers. Ideal for all those high performance applications where you take the valve covers off and on a lot, and sticking is a problem.Fits all 1965-2000 Chevy Big Blocks: 366,396,402,427,454 including GM (General Motors) Gen VI Crate Engines like the 502 and 572.These Are A Cork Rubber BlendExtra Thick 5/16 In Creates Positive SealAlso Available In Standard ThicknessFor OE Replacement And High Performance AppsDetails:Engine: Big Block ChevyColor: BlackEmission Code: 5Finish: Rubber coatedValve Cover Gasket Material: Ultra SealValve Cover Gasket Thickness: 0.187Warranty: Manufacturer's Limited 90 Day Warranty

Features:

• These Are A Cork Rubber Blend
• Extra Thick 5/16 In Creates Positive Seal
• Also Available In Standard Thickness
• For OE Replacement And High Performance Apps

Valve Cover Gasket - Ultra-Seal - 0.312 in Thick - Rubber Coated Cork / Rubber - Big Block Chevy - Pair