Menu

Shop

Garage

Cart

Account

Products to Compare (max of 3)
X
Compare These Parts
Add to Cart
$599.99
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

400 Chevy Small Block V8, 421 Chevy Small Block V8, Flat Top w/ 2 valve reliefs Piston Style

0 Reviews | 0 Answered Questions
In Stock
Ships FREE
Select your vehicle to verify fitment.
Select Vehicle
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
X
Icon Chevy 421 Forged Pistons, Flat Top, 6.0 Rod
Zoomed In Image
Part # 474966
$599.99
set
Call to Order
Add to Buildlist
Compare
Details
Reviews
Q&A
Videos & Articles
  • It is fully machined with deep valve pockets
  • Has dual forced pin oiling on most applications
  • Features lateral gas porting on higher compression ratios
  • Made entirely from high ductility 2618 alloy and weighs only 427 grams
  • Includes second land accumulator grooves and op land mini groove technology

Details

Piston Style:
Flat Top w/ 2 valve reliefs
Piston Material:
Forged Aluminum
Piston Diameter:
Select Oversize to see
Stroke:
3.875"
Connecting Rod Length:
6.000"
Piston Weight:
427 grams
Piston Ring Style:
E
Wrist Pin Diameter:
0.9270"
Wrist Pin Weight:
102 grams
MFG. Part #:
Select Oversize to see
GTIN Code:
Select Oversize to see
Sold in Quantity:
Set

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)

Item Details

Piston Weight: 427 g. Rod Length: 6.0"
Bore & Stroke: 4.125 x 3.875
Ring Style: E

Charts

474-966 Instructions (PDF)

Important Messages

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Some parts are not legal for use in California or other states with similar laws/regulations

Related Products

More Like This

Reviews

Q & A

Videos & Articles
  • Professional insight on some useful crate engine tools that will improve your engine building experience.
  • Trying to decide which power plant to use in your latest project? Here's a quick guide of modern V8 engines for hot rodders to consider.
  • In this Tech Tip, John discusses LT1 rotating assembly options for a customer looking to build a solid autoX, drag, and occasional strip powerplant for his Firebird.

You May Also Like

Error
X
Note
X
Ok