K3-3925-4155-351C -Boss-Small Block Ford 351C FXK3 Series +7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4.155 inch bore
K3-3925-4155-351C -Boss-Small Block Ford 351C FXK3 Series +7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4.155 inch bore
K3-3925-4155-351C -Boss-Small Block Ford 351C FXK3 Series +7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4.155 inch bore
K3-3925-4155-351C -Boss-Small Block Ford 351C FXK3 Series +7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4.155 inch bore
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Load image into Gallery viewer, K3-3925-4155-351C -Boss-Small Block Ford 351C FXK3 Series +7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4.155 inch bore
Load image into Gallery viewer, K3-3925-4155-351C -Boss-Small Block Ford 351C FXK3 Series +7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4.155 inch bore
Load image into Gallery viewer, K3-3925-4155-351C -Boss-Small Block Ford 351C FXK3 Series +7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4.155 inch bore

SKU: K3-3925-4155

K3-3925-4155-351C -Boss-Small Block Ford 351C FXK3 Series +7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4.155 inch bore

$1,114.95
$1,114.95
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Made in the USA

Made in the USA

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351C -Boss Small Block Ford 351C FX Comp Height: 1.66 +7.5cc Dome Top PIN: .912 Ring Groove: 1.2/1.2/3MM Stroke: 3.5 ROD: 5.78 Forged and Machined in Saint Charles Illinois USA! Boost and NOS Ready! (Moderate to Extreme Levels) Boost and NOS Ready! (Moderate to High Levels) Includes matching DSS Racing XP Severe Duty ring set. Comp Ratio: 58cc-14.11, 64cc-12.90, 70cc-11.90


Engine Brand: Ford

Engine Family: Small Block Ford 351C

Engine Size: 351C -Boss

With/Without Rings: Includes Rings

Cylinder Bore Size: 4.155 in - 105.45 mm

Ring Width: 1.2/1.2/3MM

Compression Height: 1.660

Pin Diameter: .912

Connecting Rod Length: 5.780 in

Crankshaft Stroke: 3.500 in

Piston Series: 3 - FX Series

Alloy: Forged 2618

Cylinder Head: 351 Cleveland \ Boss Open & Closed Chamber

TDC Assembly Height: 9.19

Piston Top Aprox. Comp. Ratio:

+7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber
ChamberComp Ratio
58cc14.11 to 1
64cc12.9 to 1
70cc11.9 to 1

Download Piston Instructions

Piston Specs

Engine Brand: Ford

Engine Family: Small Block Ford 351C

Engine Size: 351C -Boss

With/Without Rings: Includes Rings

Cylinder Bore Size: 4.155 in - 105.45 mm

Ring Width: 1.2/1.2/3MM

Compression Height: 1.660

Pin Diameter: .912

Connecting Rod Length: 5.780 in

Crankshaft Stroke: 3.500 in

Piston Series: 3 - FX Series

Alloy: Forged 2618

Cylinder Head: 351 Cleveland \ Boss Open & Closed Chamber

TDC Assembly Height: 9.19

Piston Top Aprox. Comp. Ratio:

+7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber
ChamberComp Ratio
58cc14.11 to 1
64cc12.9 to 1
70cc11.9 to 1

Download Piston Instructions

Engine Power TV

The DSS FX, X-Groove Feature