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SBC Chevy 383 Speed Pro Flat Top +40 Hypereutectic Pistons 5.7 Rod Small Block

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FMP H860CP40
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Description

Chevy 383 Speed Pro Pistons

This is a new set (8) of Speed Pro hypereutectic Chevy 383 stroker pistons - H860CP. +40 bore. 350 block with 3.75" crankshaft. Flat top with 2 valve reliefs. Anti-friction coated skirts. For use with 5.7" connecting rods. Includes pins and wire locks. Can be used with either pressed fit or bushed rods.

https://kmjperformance.com/ebay/Logos/speedpro.jpg   H860CP40

Bore

 4.040"

Stroke

 3.75"

Dome Shape

 Flat, 2 VR

Dome Volume

 -5cc

Comp. Distance

 1.425"

Pin Type

 Press or Float

Ring Size

 5/64, 5/64, 3/16

Piston Weight

535 g. (approx)
Compression (@ .025 deck clearance)

58cc

64cc

68cc

72cc

76cc

11.17

10.44

10.01

9.61

9.25
 
These hypereutectic Speed Pros are perfect for stock to moderate performance rebuilds. Silicone aluminum alloy allows them to run with tighter clearances, less friction, and increased sealing. Higher strength compared to regular cast pistons. Duroshield coating on piston skirts delivers longer life and reduced friction.

Details

  • FMP H860CP40
  • FMP H860CP40
  • Speed Pro
  • Available
  • New

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Shipping Information

  • Item Requires Shipping
  • 17.0 lbs.
  • Free Shipping!

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