KB294040 Performance, 3-5/8" big bore piston kit. +.040"
Fits: 48-84 Big Twin with 3-5/8 big bore …
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Specifications
- Brand
- KB Performance Piston
- Part Number
- KB294040
- OEM Reference
- —
- Pack Quantity
- Sold as a set
- Category
- Pistons And Rings Kits
- VAT Rate
- 20%
About This Product
KB Performance 3-5/8" big bore piston kit for 1948 to 1984 Big Twin models with big bore cylinders. Sold as a set in +.040" oversize. Fits strokes from 4-1/4" to 4-3/4". Gives 10.0:1 compression. T6 heat-treated 390 hypereutectic cast aluminium with 16% silicone. Gap the top compression ring with the extra clearance the instructions specify. Check that all components suit your engine combination before you fit them.
Manufacturer part number: KB294040.
Fitment
48-84 Big Twin with 3-5/8 big bore cylinders and strokes from 4-1/4" to 4-3/4" (88" to 98" engines)
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