Ford 302W dish top for using heavy boost / nitrous

Application: 

Recommended for use with multiple stage (400+ shot) nitrous & heavy (30LB+) boost.

Includes:

Complete set of pistons, locks, pins & oil rail spacers (as required).

Specifications:

Piston top type: dish top.
Bore: 4.020" to 4.125".
Stroke: 3.250" & 3.400".
Rod length: 5.400".
Compression height: 1.090" to 1.165".
Compression ratio (58): 8.8.
Compression ratio (61): 8.5.
Compression ratio (72): 7.7.
Dome volume: -20.70 to -25.25.
Gram weight: N/A.
Rings: 1/16", 1/16", 3/16".
Ring set: TOT-CR3690.
Rings included: no.
Pin type: 5115 straight wall.
Pin diameter: .927".
Pin wall: .150".
Pin length: 2.500".
Pin weight: 118.
Block height: 8.200".
Oil rail spacer: ORS-400.
NOTE: piston rings sold separatety.