Black Friday
800.345.4545
Call Our Support Line
24 Hours / 7 Days a Week!  
FREE SHIPPING!
Same Day Shipping Before 11 PM ET
0
My Cart
0
$0.00
Shop By Vehicle
Shop By
Category
Close Menu
Shop By Vehicle
Top Categories
All Categories

All Categories


Free Catalog
E-Mail Signup
My Account
Track Order
Gift Certificates
Rebates
Help

United Engine Machine IC778.040

ICON Premium Forged Big Block Chevy 454ci Piston Set 4.290" Bore

United Engine Machine IC778.040

648-IC778.040

jegs shipping
FREE Shipping
Estimated ship date 11/28/17 if Ordered Today
Easy Returns
Easy Returns
Lowest Price Guarantee
Lowest Price Guarantee
United Engine Machine IC778.040 ICON Premium Forged Big Block Chevy 454ci Piston Set 4.290" Bore $584.99
Big Block Chevy 454ci Forged Pistons
  • Hollow Dome 2V
  • 4.250" Bore (+.040)
  • 6.385" Connecting Rod
  • 4.000" Crank Stroke
  • -18cc Head Volume
  • Closed Chamber Design
  • Comp. Ratio: 11.7/96.5cc; 9.9/115cc; 9.5/119cc
  • 8/pkg

  • United Engine Machine IC778.040 Details

    Chevy 454ci

  • Dome Top Pistons
  • Use w/6.385'' Connecting Rods
  • Technical Specs:
  • Alloy: Premium High Ductility 2618
  • Bore: 4.290"
  • Crankshaft Stroke: 4.000"
  • Connecting Rod Length: 6.385"
  • Deck Height: 9.800''
  • Compression Height: 1.395''
  • Pin Size: 0.990'' x 2.750"
  • Pin Location: Centered
  • Effective Head Volume: -18cc
  • Intake Valve Relief: 0.285'' Depth / 2.300'' Diameter
  • Exhaust Valve Relief: 0.000" Depth / 0.000" Diameter
  • Top Landing Height: 0.222''
  • Ring Grooves: 1/16'' Top; 1/16'' Middle; 3/16'' Bottom
  • Gram Weight: 591/141
  • Compression Ratio: 11.7:1 w/96.5cc Heads; 9.9:1 w/115cc Heads; 9.5w/119cc

  • Specifications:

    Manufacturer's Part Number:
    IC778.040

    United Engine and Machine Company is proud to offer the Icon line of forged pistons. Icon brings the same quality and performance you've come to expect from other United Engine brands while adding a new lightweight forged design. No matter your high performance application, there is an Icon piston for you.

    Features:

    • High ductility 2618 alloy
    • Perfect for Nitrous, Turbocharged and Supercharged Apps
    • 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
    • Spacer rings included in short compression heights that intersect the wrist pin bore
    • Sold in Sets (except when noted as 1 piston per package)


      Click here for reference guide to piston top designs

    Items You Need

    Before you leave us... Receive a free catalog or join our email list

    Sign up to receive our catalog or subscribe to our email list now to see our exclusive email only specials, new products, and offers!

    Request CatalogJoin Email List