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Cylinders & Pistons - Evo

31 products

Shop the range of aftermarket motorcycle engine products at Pro Class Custom Parts.

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Product image
$639.99
$639.99
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...
Product image
$501.99
$501.99
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...
Product image
$501.99
$501.99
Features & Benefits:- * Bore = 3.508″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...
Product image
$477.99
$477.99
Features & Benefits:- * Bore = 3.503″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...
Product image
$639.99
$639.99
Features & Benefits:- * Bore = 3.498″ * 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...
Sold Out
Product image
$639.99
$639.99
Features & Benefits:- * Bore = 3.508″ * 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...
Product image
$639.99
$639.99
Features & Benefits:- * Bore = 3.508″ * 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...
Product image
$501.99
$501.99
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 ...
Product image
$501.99
$501.99
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 p...
Product image
$501.99
$501.99
Features & Benefits:- * Bore = 3.508″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter ...
Sold Out
Product image
$501.99
$501.99
Features & Benefits:- * Bore = 3.503″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...
Product image
$501.99
$501.99
Features & Benefits:- * Bore = 3.498″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...
Product image
$501.99
$501.99
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 ...
Product image
$500.99
$500.99
Features & Benefits:- * Bore = 3.498″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...
Product image
$477.99
$477.99
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 ...