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Vehicle Info NeededUNITED ENGINE MACHINEPART NUMBER: 648-IC999KTD.060
ICON Premium Forged Big Block Chevy 427/489ci Piston & Ring Set 4.310" Bore
$84837$1002.76You Save$154.39
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Lowest Price GuaranteeChevy 427ciDome Top Pistons Use w/6.385'' Connecting Rods
Big Block Chevy 427/489ci Forged Pistons & Rings Hollow Dome 4.310" Bore (+.060) 6.385/6.135" Connecting Rod 3.760/4.250" Crank Stroke -43cc Head Volume Comp. Ratio: 11.4/119cc 8/pkg
Technical Specs:
- Alloy: Premium High Ductility 2618
- Bore: 4.310"
- Crankshaft Stroke (427ci): 3.760" (Must use 6.385" rod length)
- Crankshaft Stroke (489ci): 4.250" (Must use 6.135" rod length)
- Connecting Rod Length (427ci): 6.385" (3.760" Stroke)
- Connecting Rod Length (489ci): 6.135" (4.250" Stroke)
- Deck Height: 9.800'
- Compression Height: 1.520'
- Pin Size: 0.990' x 2.750"
- Pin Location: Centered
- Effective Head Volume: -43cc
- Intake Valve Relief: 0.275' Depth / 2.420' Diameter
- Exhaust Valve Relief: 0.000" Depth / 0.000" Diameter
- Top Landing Height: 0.340"
- Ring Grooves: 1/16' Top; 1/16' Middle; 3/16' Bottom
- Gram Weight: 668/141
- Compression Ratio: 11.4:1/119cc
- Will fit AFR, RHS, Trick Flow, World, Edelbrock, Brodix, Dart, and OE Chevy open chambered heads that are 118cc's or larger. Always check piston to chamber and valves to assure you have adequate opening clearance.
- Moly Ductile Iron Ring Set 648-4250BD8
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
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- 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
Part TypePiston
Product LineUEM Pistons Icon Premium Forged Series Big Block Chevy Pistons
BrandUNITED ENGINE MACHINE
Package Height6.6
Package Width17.3
Package Length17.6
Weight19.26 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberIC999KTD.060
Package Qty1
Package TypeEA
Some parts are not legal for use in California or other states with similar laws / regulations
