Speed Pro Hypereutectic Pistons
Ideal for street performance, brackets, and oval track “claimers”. Exclusive FM244 high Silicon Alloy combined with sophisticated design and Duroshield anti-friction coated skirts. Your best value in a performance piston, perfect for the racer on a budget! Pins included. Set of 8.
Weight matched sets
Designed and manufactured in one of the nation’s most advanced piston facilities
Work perfectly with normal ring gaps
Duroshield friction reducing coating
Part Type: Pistons
Model: Hypereutectic FM244 Silicon Alloy Pistons
Application: Chevrolet 350Small Block V8
Piston Style: Flat Top with 2 Valve Reliefs
Cylinder Bore: 4.040"
Compression Distance: 1.560"
Crankshaft Stroke/Rod Length: 3.480" with 5.700" Connecting Rod (357ci)
Deck Clearance: .025"
Dome Type: Flat
Compression Ratio 3.480" Stroke w/58.0 cc Heads: 10.45
Compression Ratio 3.480" Stroke w/60.5 cc Heads: 10.15
Compression Ratio 3.480" Stroke w/64.0 cc Heads: 9.77
Compression Ratio 3.480" Stroke w/68.0 cc Heads: 9.37
Compression Ratio 3.480" Stroke w/72.0 cc Heads: 9.00
Compression Ratio 3.480" Stroke w/76.0 cc Heads: 8.67
Piston Material: Hypereutectic FM244 Alloy
Accumulator Groves: No
Forced Pin Oilers: No
Gas Ports: No
Skirt Clearance: .0010”
Skirt Coating: Yes, Duroshield Anti-Friction Coating
Lock Removal Indents: No
Wrist Pin Style: Press-Fit or Floating
Wrist Pins Included: Yes
Pin Lock: N/A
Ring Grove Sizes: 5/64", 5/64", 3/16"
Piston Rings Included: No
Manufacturer: Federal-Mogul Corporation
Manufacturer's Part Number: H631CP40
Weight: 14.0 lbs.
Warranty: Sold without warranty or guarantee of any kind
Quantity: Sold as Sets of 8 |