K3-3975-4040-400M-Small Block Ford 400M FXK3 Series +7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4.04 inch bore
K3-3975-4040-400M-Small Block Ford 400M FXK3 Series +7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4.04 inch bore
K3-3975-4040-400M-Small Block Ford 400M FXK3 Series +7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4.04 inch bore
K3-3975-4040-400M-Small Block Ford 400M FXK3 Series +7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4.04 inch bore
Load image into Gallery viewer, K3-3975-4040-400M-Small Block Ford 400M FXK3 Series +7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4.04 inch bore
Load image into Gallery viewer, K3-3975-4040-400M-Small Block Ford 400M FXK3 Series +7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4.04 inch bore
Load image into Gallery viewer, K3-3975-4040-400M-Small Block Ford 400M FXK3 Series +7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4.04 inch bore
Load image into Gallery viewer, K3-3975-4040-400M-Small Block Ford 400M FXK3 Series +7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4.04 inch bore

SKU: K3-3975-4040

K3-3975-4040-400M-Small Block Ford 400M FXK3 Series +7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber-Forged-Piston-Set- 4.04 inch bore

$1,114.95
$1,114.95
Sale Sold out
/
Ships in 1 - 8 days

Ships in 1 - 8 days

Made in the USA

Made in the USA

Secure Payment

Secure Payment

This is a pre order item. We will ship it when it comes in stock.

400M Small Block Ford 400M FX Comp Height: 1.71 +7.5cc Dome Top PIN: .975 Ring Groove: 1.2/1.2/3MM Stroke: 4 ROD: 6.58 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-15.26, 64cc-13.94, 70cc-12.85


Engine Brand: Ford

Engine Family: Small Block Ford 400M

Engine Size: 400M

With/Without Rings: Includes Rings

Cylinder Bore Size: 4.040 in - 102.54 mm

Ring Width: 1.2/1.2/3MM

Compression Height: 1.710

Pin Diameter: .975

Connecting Rod Length: 6.580 in

Crankshaft Stroke: 4.000 in

Piston Series: 3 - FX Series

Alloy: Forged 2618

Cylinder Head: 351 Cleveland \ Boss Open & Closed Chamber

TDC Assembly Height: 10.29

Piston Top Aprox. Comp. Ratio:

+7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber
ChamberComp Ratio
58cc15.26 to 1
64cc13.94 to 1
70cc12.85 to 1

Download Piston Instructions

Piston Specs

Engine Brand: Ford

Engine Family: Small Block Ford 400M

Engine Size: 400M

With/Without Rings: Includes Rings

Cylinder Bore Size: 4.040 in - 102.54 mm

Ring Width: 1.2/1.2/3MM

Compression Height: 1.710

Pin Diameter: .975

Connecting Rod Length: 6.580 in

Crankshaft Stroke: 4.000 in

Piston Series: 3 - FX Series

Alloy: Forged 2618

Cylinder Head: 351 Cleveland \ Boss Open & Closed Chamber

TDC Assembly Height: 10.29

Piston Top Aprox. Comp. Ratio:

+7.5cc Dome Top 351 Cleveland \ Boss Open & Closed Chamber
ChamberComp Ratio
58cc15.26 to 1
64cc13.94 to 1
70cc12.85 to 1

Download Piston Instructions

Engine Power TV

The DSS FX, X-Groove Feature