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427 Piston

Forged aluminum pistons are used and, depending on the cylinder head chamber size, will deliver approximately 10.5:1 to 11.0:1 compression. The dished design also delivers a -12cc dome volume, which helps keep compression in the pump-gas-friendly range. Compression height is 1.140 inch.
427 Chevy Short Block Engine - Seven Liter Foundation - Tech

 Forged aluminum pistons are used and, depending on the cylinder head chamber size, will deliver approximately 10.5:1 to 11.0:1 compression. The dished design also delivers a -12cc dome volume, which helps keep compression in the pump-gas-friendly range. Compression height is 1.140 inch.  View Related Article

 

 

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