Ford Modular 2 & 4 valve flat top

Application: 

Pin upgrade recommended when running over 250HP nitrous or 10LBS. boost.

Includes:

Complete set of pistons, rings, locks & pins.

Specifications:

Piston top type: flat top.
Bore: 3.552" & 3.572".
Stroke: 3.542".
Rod Length: 5.933".
Compression height: 1.220".
Compression ratio (42): 12.40 & 12.50.
Compression ratio (51): 10.70 & 10.80.
Compression ratio (53): 10.20 & 10.50.
Dome volume: 0.00.
Gram weight: 327 & 332.
Rings: 1.5mm, 1.5mm, 3.0mm.
Ring set: R3555 & R5163.
Rings included: yes.
Pin type: 5115 straight wall.
Pin diameter: .866".
Pin length: 2.500".
Pin wall: .115".
Pin weight: 90 grams.
Block height: 8.937".
Optional upgrade: heavy duty 52100 series pins.