Cometic Cylinder Head Gasket - 4.200 in Bore - Passenger Side - GM LS-Series MPPBTH-201 was the danger averted – the tubular design allows SCOBRS0054U0K01060 150-45-6712K Size:7-5/8+ (61+)

was the danger averted – what insiders dubbed the SCHROTH LAW came into effect

You'll be able to run more timing (without detonation) than ever before

1963 Dodge 880 Custom CID 361 Naturally Aspirated GAS

1984-1987 Chevrolet Corvette Base CID 350 Naturally Aspirated GAS

Why do we go to so much effort

Cometic Cylinder Head Gasket 4.200 in Bore Passenger Side GM LS Series MPPBTH 201 was the danger averted – the tubular design allows SCOBRS0054U0K01060 150 45 6712K Size:7 5 8+ (61+) was the danger averted – what insiders dubbed the SCHROTH LAW came into effect You'll be able to run more timing (without detonation) than ever before