Manley Performance Small Block Chevrolet LS Series -4cc Flat?Top /1.304

- Ductile Iron Top Rings

- -4cc FLAT?TOP

- 2618 high strength material lightweight design

- Offset wrist pin design

- Machined for reluctor wheel clearance

- Round wire locks

- 1.5, 1.5, 3mm ring package

- Forced pin oiling, pressure balance groove and precision pin fitting

- Premium Chrome Moly wrist pins (Standard Series) included

- 9310 alloy .170" wall pin (Extreme Duty Series)

- Bore Size 4.001"

- Rod Length 6.125"

- Stroke 3.622"

- Comp Distance 1.304"

- Pin Diameter .927"

- Piston wgt/grms 438

- Valve Pocket Type LS-1,2,3,6,92

- Valve Pocket Depth Int./Exh. .185"/.130"