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JE Pistons Piston - 257945

Authorized Dealer
Brand: JE Pistons JE Pistons
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  • Part Number: 257945
  • Part Location: U.S.
  • Availability: *Special Order
  • Delivery: Up to 2 Weeks
  • If purchased before 12:00 EDT - estimated delivery by June 06
Retail: $1,466.84
Price: $1,396.99
You Save: $69.85
Bore Size (IN)
4.6 Inch
Dome Volume
-20 Cubic Centimeter
Engine Compatibility
Chevy Big Block V8 427-454 Cubic Inch
Includes Piston Rings
No
Oversized
0.134 Inch
Piston Type
Dish Top
Quantity
Set Of 8
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JE Pistons Piston

Piston; For Use With Big Block Chevy 565 Engines; Forged; 4.600 Inch Bore; 4.250 Inch Stroke/ 6.385 Inch Rod Length; 1.270 Inch Compression Distance; Dish Top/ -20 CC Volume; 9.2:1 Compression Ratio With 110 CC Heads/ 8.8:1 Compression Ratio With 118 CC Heads/ 8.5:1 Compression Ratio With 124 CC Heads; 608 Grams; Set Of 8 Pistons

MPN: 257945

These big block pistons are compatible with forced induction, nitrous and angle milled heads. The inverted dome shape has been designed for maximum efficiency and horsepower. Valve reliefs will accommodate oversized valves and long duration, tight lobe separation cams. Compression Height figured using 9.780 block height with zero deck clearance. Precision CNC machined ring grooves accept 1/16, 1/16, 3/16 rings. Will fit both open and closed chamber cylinder heads.
Engine Compatibility: Chevy Big Block V8 427-454 Cubic Inch
Piston Type: Dish Top
Dome Volume: -20 Cubic Centimeter
Compression Ratio: 9.2:1 With 110 Cubic Centimeter/ 8.8:1 With 118 Cubic Centimeter/ 8.5:1 With 124 Cubic Centimeter
Oversized: 0.134 Inch
Bore Size (IN): 4.6 Inch
Includes Piston Rings: No
Quantity: Set Of 8

Features

  • Compatible With Forced Induction, Nitrous And Angle Milled Heads
  • The Inverted Dome Shape Has Been Designed For Maximum Efficiency And Horsepower
  • Precision CNC Machined Ring Grooves
  • Will Fit Both Open And Closed Chamber Cylinder Heads
  • Limited 90 Day Warranty
Specifications of JE Pistons Piston - 257945
Bore Size (IN) 4.6 Inch
Dome Volume -20 Cubic Centimeter
Engine Compatibility Chevy Big Block V8 427-454 Cubic Inch
Includes Piston Rings No
Oversized 0.134 Inch
Piston Type Dish Top
Quantity Set Of 8

1900 Chevrolet Big Block 1965-1990 Gen IV

1900 Chevrolet Big Block 1991-1995 Gen V

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