| Management number | 215546465 | Release Date | 2026/04/12 | List Price | $203.26 | Model Number | 215546465 | ||
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Technical Specs:Alloy: Hypereutectic 390Bore: 4.310''Crankshaft Stroke: 4.000''Connecting Rod Length: 6.135''Deck Height: 9.800''Compression Height: 1.645''Pin Size: 0.990''Pin Location: CenteredHollow Dome Top: .250'' 26cc IV (Open Chamber Head)Intake Valve Relief: 0.266'' Depth / 2.310'' Diameter Exhaust Valve Relief: N/A Top Landing Height: 0.311''Ring Grooves: 1/16'' Top; 1/16'' Middle; 3/16'' Bottom Gram Weight: 650/158Compression Ratio: 10.2:1 w/119cc Heads
| Brand | KB Performance Pistons |
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| Item Weight | 2.06 pounds |
| Manufacturer | KB Performance Pistons |
| OEM Part Number | KB207.060 |
| Manufacturer Part Number | KB207.060 |
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