This forged 3-5/8" bore stroker piston replaces several cast and forged big bore pistons that S&S previously offered. Applications for this piston include 88" (4-1/4" stroke), 93" (4-1/2" stroke), and 96" (4-5/8" stroke) engines with stock 8-1/2" diameter flywheels, and 98" (4-3/4" stroke) and 103" (5" stroke) engines with 8-1/4" small diameter flywheels. As with the stock bore stroker piston, the modern metallurgy and advanced skirt profiles allow a relatively close piston fit for low engine noise and long engine life.
Displacement: 88"
Stroke: 4-1/4"
Flywheel Diameter: 8-1/2"
Compression Ratio: 8.5:1
Cylinder Length (SH and P series engines): 5.330"
Displacement: 93"
Stroke: 4-1/2"
Flywheel Diameter: 8-1/2"
Compression Ratio: 8.5:1
Cylinder Length (SH and P series engines): 5.405"
Cylinder Length (KN series engines): 5.625"
Displacement: 93 (High Compression)
Stroke: 4-1/2"
Flywheel Diameter: 8-1/2"
Compression Ratio: 9.1:1
Cylinder Length (SH and P series engines): 5.363"
Displacement: 96"
Stroke: 4-5/8"
Flywheel Diameter: 8-1/2"
Compression Ratio: 9.1:1
Cylinder Length (SH and P series engines): 5.440"
Displacement: 98"
Stroke: 4-3/4"
Flywheel Diameter: 8-1/4"
Compression Ratio: 8.9:1
Cylinder Length (SH and P series engines): 5.530"
Displacement: 103"
Stroke: 5"
Flywheel Diameter: 8-1/4"
Compression Ratio: 9.7:1
Cylinder Length (SH and P series engines): 5.630"
Product Note:Only for models with OVH (Overhead Valve) engines.
Specification
Details
Bore
3-5/8 in.
Country of Origin
USA
Piston Type
Forged
Size Over Standard
0.060 in. Larger than Stock
Vehicle Fitment
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
