Pontiac

Specifications Bore: 4.350 Rod Length: 6.800 Pin Diameter: 0.9900 Stroke: 4.250 Comp. Ht: 1.292 Top Land: 0.386 OE Deck Height: 10.250 Weight Piston/Pin: 534/141 Head Type Flat Top Effective Head Volume 15.4cc Ext. Valve Depth 0.336 Ext. Valve Dia. 2.012 Int. Relief Depth 0.334 Int. Relief Dia. 2.508 Compression Ratios 50-14.4 65-12.2 72-11.5 87-10.0 Ring Packs 2-1/16 1-3/16 Pin Number .990x2.750 Lock Ring PRG110-3 Notes Centered pin. 990" pin for use with aftermarket rods. Standard bore for this piston is considered 4.350". Learn More

Specifications Bore: 4.350 Rod Length: 6.800 Pin Diameter: 0.9900 Stroke: 4.250 Comp. Ht: 1.292 Top Land: 0.386 OE Deck Height: 10.250 Weight Piston/Pin: 534/141 Head Type Flat Top Effective Head Volume 15.4cc Ext. Valve Depth 0.336 Ext. Valve Dia. 2.012 Int. Relief Depth 0.334 Int. Relief Dia. 2.508 Compression Ratios 50-14.4 65-12.2 72-11.5 87-10.0 Ring Packs 2-1/16 1-3/16 Pin Number .990x2.750 Lock Ring PRG110-3 Notes Centered pin. 990" pin for use with aftermarket rods. Standard bore for this piston is considered 4.350". Learn More

Specifications Bore: 4.350 Rod Length: 6.800 Pin Diameter: 0.9900 Stroke: 4.250 Comp. Ht: 1.292 Top Land: 0.386 OE Deck Height: 10.250 Weight Piston/Pin: 534/141 Head Type Flat Top Effective Head Volume 15.4cc Ext. Valve Depth 0.336 Ext. Valve Dia. 2.012 Int. Relief Depth 0.334 Int. Relief Dia. 2.508 Compression Ratios 50-14.4 65-12.2 72-11.5 87-10.0 Ring Packs 2-1/16 1-3/16 Pin Number .990x2.750 Lock Ring PRG110-3 Notes Centered pin. 990" pin for use with aftermarket rods. Standard bore for this piston is considered 4.350". Learn More

Specifications Bore: 4.150 Rod Length: 6.630 Pin Diameter: 0.9805 Stroke: 4.210 Comp. Ht: 1.490 Top Land: 0.000 OE Deck Height: 10.250 Weight Piston/Pin: 529/163 Head Type Flat Top Effective Head Volume 5.5cc Compression Ratios 71-12.1 87-10.3 96-9.6 111-8.5 Ring Packs 2-1/16 3-1/16 Notes Centered pin. use with stock or Edelbrock style heads Learn More

Specifications Bore: 4.150 Rod Length: 6.630 Pin Diameter: 0.9805 Stroke: 4.210 Comp. Ht: 1.490 Top Land: 0.000 OE Deck Height: 10.250 Weight Piston/Pin: 529/163 Head Type Flat Top Effective Head Volume 5.5cc Compression Ratios 71-12.1 87-10.3 96-9.6 111-8.5 Ring Packs 2-1/16 3-1/16 Notes Centered pin. use with stock or Edelbrock style heads Learn More

Specifications Bore: 4.150 Rod Length: 6.630 Pin Diameter: 0.9805 Stroke: 4.210 Comp. Ht: 1.490 Top Land: 0.000 OE Deck Height: 10.250 Weight Piston/Pin: 529/163 Head Type Flat Top Effective Head Volume 5.5cc Compression Ratios 71-12.1 87-10.3 96-9.6 111-8.5 Ring Packs 2-1/16 3-1/16 Notes Centered pin. use with stock or Edelbrock style heads Learn More

Specifications Bore: 4.150 Rod Length: 6.630 Pin Diameter: 0.9805 Stroke: 4.210 Comp. Ht: 1.490 Top Land: 0.000 OE Deck Height: 10.250 Weight Piston/Pin: 529/163 Head Type Flat Top Effective Head Volume 5.5cc Compression Ratios 71-12.1 87-10.3 96-9.6 111-8.5 Ring Packs 2-1/16 3-1/16 Notes Centered pin. use with stock or Edelbrock style heads Learn More

Specifications Bore: 4.150 Rod Length: 6.630 Pin Diameter: 0.9805 Stroke: 4.210 Comp. Ht: 1.490 Top Land: 0.000 OE Deck Height: 10.250 Weight Piston/Pin: 540/163 Head Type D-cup Effective Head Volume 15cc Compression Ratios 71-11.0 87-9.5 96-8.9 111-8.0 Ring Packs 2-1/16 1-3/16 Notes Centered pin. use with stock or Edelbrock style heads Learn More