KB Pistons

49 products

Created from a high-silicon aluminum alloy, KB Performance pistons are lightweight to improve throttle response and RPM changes while still retaining incredible strength. Browse the range below!

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KB PISTONS

$812.99

Features & Benefits:- * Bore = 3.518″ * Stroke = 4.250″ * Forged 4032 Alloy is an 11% silicon alloy that is formed in a forging press then fully machined * Best resistance to cracking in hi-co...

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KB PISTONS

$674.99

Features & Benefits:- * Bore = 3.518″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter ...

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KB PISTONS

$674.99

Features & Benefits:- * Bore = 3.518″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter ...

KB PISTONS

$641.99

Features & Benefits:- * Bore = 3.518″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter ...

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KB PISTONS

$624.99

Features & Benefits:- * Bore = 3.518″ * Stroke = 3.812″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...

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KB PISTONS

$657.99

Features & Benefits:- * Bore = 3.457″ * Stroke = 3.969″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...

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KB PISTONS

$733.99

Features & Benefits:- * Bore = 3.218″ * Stroke = 3.812″ * Fits Iron Head Sporty. * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal e...

KB PISTONS

$674.99

Features & Benefits:- * Bore = 3.528″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...

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KB PISTONS

$674.99

Features & Benefits:- * Bore = 3.528″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter ...

KB PISTONS

$641.99

Features & Benefits:- * Bore = 3.528″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter ...

Sold Out

KB PISTONS

$657.99

Features & Benefits:- * Bore=3.467″ * Stroke = 3.969″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter pis...

KB PISTONS

$674.99

Features & Benefits:- * Bore = 3.538″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...

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KB PISTONS

$674.99

Features & Benefits:- * Bore = 3.538″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...

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KB PISTONS

$657.99

Features & Benefits:- * Bore = 3.477″ * Stroke = 3.969″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter ...

Sold Out

KB PISTONS

$733.99

Features & Benefits:- * Bore = 3.238″ * Stroke = 3.812″ * Fits Iron Head Sporty. * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal e...