For a 396ci engine, use part number 648-KB160.STD.
This will be a .030 over bore 396ci.
On a 96.5 head (Closed chamber head), the compression ratio will be 10.3.
Technical Specs: Alloy: Hypereutectic 390.
Bore: 4.155''.
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.
