Big Block

Specifications Bore: 4.250 Rod Length: 6.135 Pin Diameter: 0.9900 Stroke: 4.000 Comp. Ht: 1.645 Top Land: 0.000 OE Deck Height: 9.800 Weight Piston/Pin: 678/141 Head Type DOME .425 Effective Head Volume -38cc Compression Ratios 119-11.4 124-10.8 Ring Packs 2-1/16 1-3/16 Notes For open chamber heads only, 118cc and above. Has .425 hollow dome, centered pin. Can be used wit AFR, RHS, Brodix, Dart, Edelbrock, and Chevy open chamber heads Learn More

Specifications Bore: 4.250 Rod Length: 6.135 Pin Diameter: 0.9900 Stroke: 4.000 Comp. Ht: 1.645 Top Land: 0.000 OE Deck Height: 9.800 Weight Piston/Pin: 678/141 Head Type DOME .425 Effective Head Volume -38cc Compression Ratios 119-11.4 124-10.8 Ring Packs 2-1/16 1-3/16 Notes For open chamber heads only, 118cc and above. Has .425 hollow dome, centered pin. Can be used wit AFR, RHS, Brodix, Dart, Edelbrock, and Chevy open chamber heads Learn More

Specifications Bore: 4.250 Rod Length: 6.135 Pin Diameter: 0.9900 Stroke: 4.000 Comp. Ht: 1.645 Top Land: 0.000 OE Deck Height: 9.800 Weight Piston/Pin: 678/141 Head Type DOME .425 Effective Head Volume -38cc Compression Ratios 119-11.4 124-10.8 Ring Packs 2-1/16 1-3/16 Notes For open chamber heads only, 118cc and above. Has .425 hollow dome, centered pin. Can be used wit AFR, RHS, Brodix, Dart, Edelbrock, and Chevy open chamber heads Learn More

Specifications Bore: 4.250 Rod Length: 6.135 Pin Diameter: 0.9900 Stroke: 4.000 Comp. Ht: 1.645 Top Land: 0.000 OE Deck Height: 9.800 Weight Piston/Pin: 678/141 Head Type DOME .425 Effective Head Volume -38cc Compression Ratios 119-11.4 124-10.8 Ring Packs 2-1/16 1-3/16 Notes For open chamber heads only, 118cc and above. Has .425 hollow dome, centered pin. Can be used wit AFR, RHS, Brodix, Dart, Edelbrock, and Chevy open chamber heads Learn More

Specifications Bore: 4.250 Rod Length: 6.135 Pin Diameter: 0.9900 Stroke: 4.000 Comp. Ht: 1.645 Top Land: 0.000 OE Deck Height: 9.800 Weight Piston/Pin: 678/141 Head Type DOME .425 Effective Head Volume -38cc Compression Ratios 119-11.4 124-10.8 Ring Packs 2-1/16 1-3/16 Notes For open chamber heads only, 118cc and above. Has .425 hollow dome, centered pin. Can be used wit AFR, RHS, Brodix, Dart, Edelbrock, and Chevy open chamber heads Learn More

Specifications Bore: 4.250 Rod Length: 6.385 Pin Diameter: 0.9900 Stroke: 4.000 Comp. Ht: 1.395 Top Land: 0.000 OE Deck Height: 9.800 Weight Piston/Pin: 620/141 Head Type DOME .425 Effective Head Volume -38cc Compression Ratios 119-11.4 124-10.9 Ring Packs 2-1/16 1-3/16 Notes For open chamber heads only, 118cc and above. Has .425 hollow dome, centered pin, spacer ring included. Can be used with AFR, RHS, Brodix, Dart, Edelbrock, and Chevy open chamber heads . Learn More

Specifications Bore: 4.250 Rod Length: 6.385 Pin Diameter: 0.9900 Stroke: 4.000 Comp. Ht: 1.395 Top Land: 0.000 OE Deck Height: 9.800 Weight Piston/Pin: 620/141 Head Type DOME .425 Effective Head Volume -38cc Compression Ratios 119-11.4 124-10.9 Ring Packs 2-1/16 1-3/16 Notes For open chamber heads only, 118cc and above. Has .425 hollow dome, centered pin, spacer ring included. Can be used with AFR, RHS, Brodix, Dart, Edelbrock, and Chevy open chamber heads . Learn More

Specifications Bore: 4.250 Rod Length: 6.385 Pin Diameter: 0.9900 Stroke: 4.000 Comp. Ht: 1.395 Top Land: 0.000 OE Deck Height: 9.800 Weight Piston/Pin: 620/141 Head Type DOME .425 Effective Head Volume -38cc Compression Ratios 119-11.4 124-10.9 Ring Packs 2-1/16 1-3/16 Notes For open chamber heads only, 118cc and above. Has .425 hollow dome, centered pin, spacer ring included. Can be used with AFR, RHS, Brodix, Dart, Edelbrock, and Chevy open chamber heads . Learn More