KB Performance Pistons for Big Twin 1340cc 1984-1999

Now you can have the same pistons that have become synonymous with drag racing and high performance. Designed by the radical racer himself, Keith Black, these lightweight pistons are diamond machined and held to plus or minus one gram within the set. Skirt size tolerance from piston to piston is less than .0005". Made of high-strength T6 heat-treated, 390 hypereutectic aluminum alloy, they yield better thermal efficiency with less expansion, and superior wear characteristics. They can run with less than .001" piston-to-wall clearance with no scoring - the tightest clearance in the industry. KB pistons can be installed tighter than other performancepistons. A close-fitting piston rocks less, supports the ring better and seals the engine for maximum power. When a loose fit engine is desired, the rigid skirt design of the KB piston allows the builder a choice without fear of piston damage.The thermal efficiency of the 390 alloy allows engine timing to be reduced and the tight clearance virtually eliminates piston noise. Sold in sets complete with 2 pistons, rings, wrist pins, and circlips.

Options Our Price

10030 Fits Big Twin 1340cc models from 1984 thru 1999- Standard- 10.5:1 Ratio
$174.95

10035 Fits Big Twin 1340cc models from 1984 thru 1999- +.010" oversize- 10.5:1 Ratio
$185.95

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please note: this product may not be exactly as illustrated.

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Home > Engine > Pistons and Rings > KB Performance > KB Performance Pistons for Big Twin 1340cc 1984-1999

KB Performance Pistons for Big Twin 1340cc 1984-1999