Speed Pro Premium Piston Rings 4.380" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Moly HSQR ONYX Starter Shield is the

ONYX Starter Shield is the perfect choice for high heat applications where engine heat soak is a problem

Patented by Stroud Safety

1985-2005 Chevrolet Astro

MLX technology can be found in some head gaskets and are made from the same materials as our MLS Head Gaskets

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Speed Pro Premium Piston Rings 4.380" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Moly HSQR ONYX Starter Shield is theProduct Description: Piston Rings Performance 4. 380 in Bore Drop In 5 64 x 5 64 x 3 16 in Thick Standard Tension Steel Moly 8 Cylinder From pistons to engine bearing components, Speed Pro offers an array of performance engine parts. You can rely on Speed Pro for industry leading performance engine technologies, from cutting edge Digital Diamond Profiled pistons to A Series bearings. They are engine components performance enthusiasts and racers can