128" | 124" Bolt-On Big Bore Kits / M8 Motors
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- 128 KIT FOR 17-22 M-EIGHT 114/117 4 1/4 BORE; 4 1/2 STROKE; 11.3:1cr (WITH 88cc HEADS)
- 124 KIT FOR 17-22 M-EIGHT 107 4 1/4 BORE; 4 3/8 STROKE; 11.2:1cr (WITH 88cc HEADS)
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Aerospace-grade all-aluminum cylinder with nickel-silicon-carbide (NSC) electroplated bore
- No sleeving allows for larger bore sizes
- NSC-plated cylinders have less friction for increased horsepower, lower engine temperatures and a longer lifespan
- True bolt-on kit that delivers major power durability and strength
- Includes pair of all-aluminum NSC-coated bore cylinders, custom-forged pistons with high-tension rings specifically designed for NSC cylinders and a head/base gasket set
- Replacement gasket sets available separately
- Upgraded cylinders studs and head bolts recommended
- Made in the USA
128" | 124" Bolt-On Big Bore Kits / M8 Motors
Sale price$1,455.95 USD
Regular price
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128" | 124" Bolt-On Big Bore Kits / M8 Motors
Sale price$1,455.95 USD
Regular price
