JE Pistons specially designed for OEM blocks and heads, JE pistons are for use with the 427 or the 428 crank. Designed with a minor +.017? overbore for cast iron blocks, JE pistons use a 4.250? ring set with 1/16, 1/16, 3/16 rings. The Compression ratios are figured for 10.150 block height. Larger bore sizes available as customs, call JE for details.

Includes:

Pin #975-2930-16-51S (154g)

Double spiro locks (#990-042-CS)

Compression Ratio:

72cc: 12.5:1

74cc: 12.2:1

88cc: 10.5:1