Revolution Big Bore Monster Cylinder Kit 139" Black NSC Harley M-Eight M8 17+

Designer: Revolution Performance

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$1,576.04
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$1,576.04
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SKU RP201-613W
Free delivery to the Lower 48 States
30 Day Returns and Exchanges
Fitmet Questions? Call us at 610-754-8500
BRAND NEW

PART# RP201-613W

139" kit for 2017+ M-Eight 107" 1-1/2" bore; 4-3/8" stroke; 11.2:1cr (w/ 88cc heads)

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

Monster big bore kits will require case boring

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 U.S.A.

COLOR/FINISH BLACK
BORE SIZE 4.500"
DISPLACEMENT 139"
STROKE LENGTH 4-3/8"