IC999KTD.060 Big Block Chevy 427/489ci Forged Pistons & Ri

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 2618Bore: 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: CenteredEffective Head Volume: -43ccIntake Valve Relief: 0.275'' Depth / 2.420'' DiameterExhaust Valve Relief: 0.000" Depth / 0.000" DiameterTop Landing Height: 0.340"Ring Grooves: 1/16'' Top; 1/16'' Middle; 3/16'' BottomGram Weight: 668/141Compression Ratio: 11.4:1/119ccWill 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...

• Hollow Dome...
• 4.310" Bore (+.060)...
• 6.385/6.135" Connecting Rod...
• 3.760/4.250" Crank Stroke...
• -43cc Head Volume...