K1-3925-4040 351C /Boss Small Block Ford 351C K1-FX Series +7.5cc Dome Top Cleveland Open & Closed Chamber Forged Piston Set. 4.040 bore
K1-3925-4040 351C /Boss Small Block Ford 351C K1-FX Series +7.5cc Dome Top Cleveland Open & Closed Chamber Forged Piston Set. 4.040 bore
K1-3925-4040 351C /Boss Small Block Ford 351C K1-FX Series +7.5cc Dome Top Cleveland Open & Closed Chamber Forged Piston Set. 4.040 bore
Load image into Gallery viewer, K1-3925-4040 351C /Boss Small Block Ford 351C K1-FX Series +7.5cc Dome Top Cleveland Open & Closed Chamber Forged Piston Set. 4.040 bore
Load image into Gallery viewer, K1-3925-4040 351C /Boss Small Block Ford 351C K1-FX Series +7.5cc Dome Top Cleveland Open & Closed Chamber Forged Piston Set. 4.040 bore
Load image into Gallery viewer, K1-3925-4040 351C /Boss Small Block Ford 351C K1-FX Series +7.5cc Dome Top Cleveland Open & Closed Chamber Forged Piston Set. 4.040 bore

SKU: K1-3925-4040

K1-3925-4040 351C /Boss Small Block Ford 351C K1-FX Series +7.5cc Dome Top Cleveland Open & Closed Chamber Forged Piston Set. 4.040 bore

$904.95
$904.95
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Made in the USA

Made in the USA

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351C /Boss Small Block Ford 351C K1-FX 4032 Alloy With Rings Comp Hgt: 1.660" +7.5cc Dome Top Cleveland Open & Closed Chamber Pin: .912 Ring Grooves: 1.2/1.2/3MM Stroke: 3.500" Rod: 5.780" Boost and NOS Ready! (Moderate to High Levels) Aprox Comp Ratio: 58cc-13.49, 61cc-12.88, 64cc-12.33

Engine Brand: Ford

Engine Family: Small Block Ford 351C

Engine Size: 351C -Boss

With/Without Rings: Includes Rings

Cylinder Bore Size: 4.040 in - 102.54 mm

Ring Width: 1.2/1.2/3MM

Compression Height: 1.660"

Pin Diameter: .912

Connecting Rod Length: 5.780"

Crankshaft Stroke: 3.500"

Piston Series: 1-FX Series

Alloy: Forged 4032

Cylinder Head: 351 Cleveland \ Boss Open & Closed Chamber

TDC Assembly Height: 9.190

Piston Top Aprox. Comp. Ratio:

+7.5cc Dome Top Cleveland Open & Closed Chamber
ChamberComp. Ratio
58cc13.49 to 1
61cc12.88 to 1
64cc12.33 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: 4.040 in - 102.54 mm

Ring Width: 1.2/1.2/3MM

Compression Height: 1.660"

Pin Diameter: .912

Connecting Rod Length: 5.780"

Crankshaft Stroke: 3.500"

Piston Series: 1-FX Series

Alloy: Forged 4032

Cylinder Head: 351 Cleveland \ Boss Open & Closed Chamber

TDC Assembly Height: 9.190

Piston Top Aprox. Comp. Ratio:

+7.5cc Dome Top Cleveland Open & Closed Chamber
ChamberComp. Ratio
58cc13.49 to 1
61cc12.88 to 1
64cc12.33 to 1

Download Piston Instructions

Engine Power TV

The DSS FX, X-Groove Feature