Ford 351W flat top for Twisted-Wedge heads

Application: 

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

Includes:

Complete set of pistons, locks & pins.

Specifications:

Piston top type: flat top.
Bore: 4.030".
Stroke: 3.500 & 4.000".
Rod length: 5.956 & 6.125".
Compression height: 1.358" & 1.757".
Compression ratio (58): 11.5 & 13.00.
Compression ratio (61): 11.0 & 12.50.
Compression ratio (72): 9.7 & 11.00.
Dome volume: -3.00.
Gram weight: 504 & 453.
Rings: 1/16", 1/16", 3/16".
Ring set: TOT-CR3690.
Rings included: no.
Pin type: 5115 straight wall.
Pin diameter: .912".
Pin wall: .150". 
Pin length: 2.500".
Pin weight: 118.
Block height: 8.200".
Oil rail spacer: N/A.
NOTE: piston rings sold separately.