Chevrolet 400, 23˚ heads, reverse dome

Application: 

Recommended for Applications Using Nitrous (Up To 150HP Shot) / Not Recommended For Turbo Applications.

Includes:

Complete Set Of Pistons, Locks, Pins & Oil Rail Spacers (As Required).

Specifications:

Piston top type: reverse dome.
Bore: 4.155" & 1.165".
Stroke: 3.750".
Rod Length: 6.000
Compression height: 1.133" & 1.433".
Compression ratio (58): 10.40
Compression ratio (64): 9.80
Compression ratio (76): 8.80
Dome Volume: -20.00 & -18.80.
Gram Weight: 454 to 578.
Rings: 1/16", 1/16", 3/16".
Ring set: N/A.
Rings included: no.
Oil rail spacer: ORS-412.
Pin type: 5115 straight wall.
Pin diameter: .927".
Pin length: 2.500".
Pin wall: .150".
Pin weight: 118 grams.
Block height: 9.025".
Note: piston rings sold separately.