Displacement | Bore | Stroke | Rod | CH | Dish | Weight | Ring Set | Pin | C/R |
427 | 4.125 | 4.000 | 6.200" | 1.230 | -30cc | 464 | 4125-5 | .927 | 10.0 |
438 | 4.125 | 4.100 | 6.250" | 1.230 | -30cc | 464 | 4125-5 | .927 | 10.2 |
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These JE pistons are designed to be compatible with forced induction and nitrous applications, and will accommodate oversized and long duration, tight lobe separation cams. All block deck heights have been adjusted to reflect zero deck clearance. Precision CNC machined ring groves accept 1/16 1/16 3/16 rings.
Compression calculated with 58cc head, your actual comrpession may vary depending on your head gasket, deck height and other variables.
This product was added to our catalog on Saturday 29 January, 2005.