KB160.STD +17cc Domed Piston Set for Big Block Chevrolet

Chevy 396/402ci Hypereutectic Pistons Hollow Dome .180'' 4.125'' Bore (+.030'' 396; Standard 402) Use w/6.135'' Connecting Rod & 3.760'' Crank Stroke Comp. Ratio: 10.5/96.5cc; 9.6/105cc; 9.4/108cc; 8.5/119cc 8/pkgNotes: For a 396ci engine, use part number 648-KB160.STD. This will be a 396ci .030 over bore. Compression ratio will be 10.3 on 96.5 head (Closed chamber head). Technical Specs: Alloy: Hypereutectic 390 Bore: 4.125'' Crankshaft Stroke: 3.760'' Connecting Rod Length: 6.135'' Deck Height: 9.800'' Compression Height: 1.765'' Pin Size: 0.990'' Pin Location: Centered Hollow Dome Top: .180'' 17cc IV (Closed Chamber Head) Intake Valve Relief: 0.266'' Depth / 2.310'' Diameter Exhaust Valve Relief: N/A Top Landing Height: 0.311'' Ring Grooves: 5/64'' Top; 5/64'' Middle; 3/16'' Bottom Gram Weight: 630/158 Compression Ratio: 10.5:1 w/96.5cc Heads; 9.6:1 w/105cc Heads; 9.4:1 w/108cc; 8.5:1 w/119cc Heads

• 4.125 inch bore size
• Package Dimensions: 4.8 H x 9.98 L x 7.1 W (inches)
• Package Weight: 17.0 pounds
• Country of Origin : United States