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$549.99
Icon Chevy 421 Forged Pistons, Flat Top, 6.0 Rod
Icon Chevy 421 Forged Pistons, Flat Top, 6.0 Rod

Icon Chevy 421 Forged Pistons, Flat Top, 6.0 Rod

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Icon Chevy 421 Forged Pistons, Flat Top, 6.0 Rod
Icon Chevy 421 Forged Pistons, Flat Top, 6.0 Rod
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Part # 474966
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Important Messages:

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.

Details

Piston Material:
Forged Aluminum
Piston Style:
Flat Top w/ 2 valve reliefs
Piston Diameter:
Select Oversize to see
Connecting Rod Length:
6.000"
Piston Ring Style:
E
Stroke:
3.875"
Wrist Pin Diameter:
.927"
Piston Weight:
427 grams
Wrist Pin Weight:
102 grams
Sold in Quantity:
Set
MFG. Part #:
Select Oversize to see
GTIN Code:
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Info

Formerly KB Forged Pistons. Starting with 2618 alloy heat treated to high strength T-6 specifications, these give you the best value for your money. Exclusive V-rib adds strength without adding weight but allows maximum cooling.

For Chevy 421 c.i. (4.125" bore x 3.875" stroke). Use Style E rings (1.5mm, 1.5mm, 3.0mm).

  • High ductility 2618 alloy
  • Dual forced pin oiling on most applications
  • Lateral gas porting on higher compression ratios
  • Fully machined with deep valve pockets
  • Second land accumulator grooves
  • Top land mini groove technology
  • Diamond finished skirts
  • Triple wound spiral locks

Ring Style Chart (GIF)

474-966 Instructions (PDF)

Item Details

Piston Weight: 427 g. Rod Length: 6.0"
Bore & Stroke: 4.125 x 3.875
Ring Style: E
Some parts are not legal for use in California or other states with similar laws/regulations

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