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Icon Chevy 421 Forged Pistons, Flat Top, 6.0 Rod

Price: $549.99 - $799.99
Item #:
474966
Item Details:
Piston Weight: 427 g. Rod Length: 6.0"
Bore & Stroke: 4.125 x 3.875
Ring Style: E
Icon Chevy 421 Forged Pistons, Flat Top, 6.0 Rod
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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)

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    More Info
    Icon Chevy 421 Forged Pistons, .218 Dome, 6.0 Rod
    x 
    							                        
    
                                                        
    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.
    • 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
    For Chevy 421 c.i. (4.125" bore x 3.875" stroke). Use Style E rings (1.5mm, 1.5mm, 3.0mm).
    Ring Style Chart (GIF)
    474-965 Instructions (PDF)