Enginetech ICA500 | Intake Manifold Gasket Set for GM & Cadillac 472 500

Single Intake Valve\n\nCompatible with: GM & Cadillac 425 / 472 / 500 (Enginetech V1808)\nNominal Stem Diameter: 11/32 inches\nET Stem Diameter: 0.3416 inches\nStandard Head Diameter: 2.000...

Single Intake Valve\n\nCompatible with: GM & Cadillac 472 / 500 (Enginetech V1714)\nNominal Stem Diameter: 11/32 inches\nET Stem Diameter: 0.3420 inches\nStandard Head Diameter: 2.000 inches\nET...

Single Exhaust Valve\n\nCompatible with: GM & Cadillac 472, 500 (Enginetech V1715)\nNominal Stem Diameter: 11/32 inches\nET Stem Diameter: 0.3418 inches\nStandard Head Diameter: 1.625 inches\nET...

Single Exhaust Valve\n\nCompatible with: GM & Cadillac 425/472/500 (Enginetech V1809)\nNominal Stem Diameter: 11/32 inches\nET Stem Diameter: 0.3414 inches\nStandard Head Diameter: 1.625...