Chevrolet big-block, forced induction

Application: 

Recommended for applications using heavy nitrous (400+HP shot) / boost (30+ LBS).

Includes:

Complete set of pistons, locks, & pins.

Specifications:

Piston top type: flat & dome top.
Bore: 4.280" to 4.530".
Stroke: 4.000" & 4.250". 
Rod length: 6.135" & 6.385".
Compression height: 1.270" to 1.648".
Compression ratio (109.00): 9.0:1
Compression ratio (118.00): 8.5:1
Compression ratio (124.00): 8.20:1
Dome volume: -14.29cc to +2cc.
Dome height: 0.105" & 0.120".
Gram Weight: 609 to 7.06 gr. 
Rings: 1/16", 1/16", 3/16".
Ring set: RS-10451-05.
Rings included: no.
Oil rail spacer: ORS-447.
Pin type: 5115 straight wall.
Pin diameter: .990".
Pin length: 2.930".
Pin wall: .150".
Pin weight: 146 grams.
Pin buttons: N/A.
Block height: 9.790".
Top land: .350".
Second land: .190".
Oil land: .095".
Deck thickness: .220".
Intake cutter: 2.400".
Exhaust cutter: slant.
Intake depth: .320
Exhaust Depth: .120" up.
Note: Street, drag & marine applications should use taper bore pins in high HP applications.