Ride Now & Pay Later with AfterPay & Zip

Free Shipping Over $50 (Excl. Heavy & Bulky Items)

  • Free shipping over $50

    Heavy & Bulky Items Excl.

  • Lowest Prices

    Exclusive Online Prices

  • Easy returns

    Quick & Hassle-Free

  • Expert Advice

    Friendly Service via Chat & Call
Keith Black Pistons  |  SKU: ROL-KB258.010

Keith Black Pistons KB258.010 +.010" Flat Top Pistons w/8.6:1 Compression Ratio for Big Twin 84-99 w/Evolution Engine

In Stock

Online Only

Ready For Delivery

$392.35 $413.00

Explore Related Categories

Features & Benefits:-

* Bore = 3.508in.

* Stroke = 4.250in.

* Hypereutectic Alloy is a cast 16% silicon content material.

* Perfect for air cooled engines.

* Low thermal expansion rate = tighter piston-to-cylinder clearance.

* Complete kit includes: two pistons, rings, wrist pins and clips.

* Replaces OEM # 21942-83

Tech Tips:-

* 8.6:1 Compression Ratio with 80cc Head Chamber Volume.

* Follow Ring End Gap & Piston to Cylinder Clearances as per the supplied Manufacturers Instructions.

* Pull the engine down first & measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders & required pistons.

(Part Numbers: ROL-KB258.010)

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
Back to top