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NITRALLOY BIG BORE CYLINDER KITS FOR EVOLUTION ENGINES

NITRALLOY BIG BORE CYLINDER KITS FOR EVOLUTION ENGINES

REPLACEMENT PISTON RING SUPPORTS FOR KB PISTONS

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PRECISION MACHINING BLANK STEM OVERSIZE VALVES

PRECISION MACHINING BLANK STEM OVERSIZE VALVES

A limited number of KB pistons have the ring grooves crossing the piston pin hole. In order to have the piston rings properly supported these pistons come with piston ring support rings. As support rings do not have a sealing function they do not have to be replaced when you install new piston rings, but sometimes new ones are needed because a ring is lost or broken.

Specifications

Fits KB 300 series 3 13/16" Big Bore pistons for Evolution Big Twin
Article number Description Retail price Add to cart
239890
For standard thru +.030" bore € 7,44 € 2,99
Fits KB 345 series 4" Big Bore pistons for Evolution Big Twin
Article number Description Retail price Add to cart
239983
For standard thru +.020" bore € 2,82 € 1,26

Recommended Retail Prices include 25.50% sales tax.

Prices exclude shipping and installation.

BLOW OUT SALES products are non refundable and non returnable. The discount is only valid on in-stock products, so while stocks last. No discount on backorders, no discount on special order items. Orders are processed on a first come, first served basis. Stock quantities are not guaranteed. The corresponding promotions are not valid in combination with other offers and discounts.