Cylinders & Pistons

160 products

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

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$458.99

KPMI Cylinder Studs are made from 180,000 psi yield strength, fine grain, heat treated, aircraft grade alloy steel. When you want a stud that meets proof-stress and maximizes clamping force, look ...

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KIBBLEWHITE

$458.99

KPMI Cylinder Studs are made from 180,000 psi yield strength, fine grain, heat treated, aircraft grade alloy steel. When you want a stud that meets proof-stress and maximizes clamping force, look ...

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KIBBLEWHITE

$458.99

KPMI Cylinder Studs are made from 180,000 psi yield strength, fine grain, heat treated, aircraft grade alloy steel. When you want a stud that meets proof-stress and maximizes clamping force, look ...

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KIBBLEWHITE

$425.99

KPMI Cylinder Studs are made from 180,000 psi yield strength, fine grain, heat treated, aircraft grade alloy steel. When you want a stud that meets proof-stress and maximizes clamping force, look ...

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CP CARRILLO PISTONS

$1,050.99

Features & Benefits:- * ID # 6918 * Bore = 4.070″ * Stroke = 4.625″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed ...

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CP CARRILLO PISTONS

$1,050.99

Features & Benefits:- * ID # 6918 * Bore = 4.060″ * Stroke = 4.625″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed ...

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ROLLIES SPEED SHOP

$2,107.99

Features & Benefits:- * 4.250″ Bore Cylinder & Keith Black # KB596LCA.STD = 11.7:1 Pistons * Black with CNC Machined Fins * Includes Dowel Pins (Does NOT include Pistons) * Replaces OEM # ...

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ROLLIES SPEED SHOP

$2,118.99

Features & Benefits:- * 4.250″ Bore Cylinder & CP Carrillo # CAR-M5112 = 12.0:1 Pistons * Black with CNC Machined Fins * Includes Dowel Pins (Does NOT include Pistons) * Replaces OEM # 168...

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ROLLIES SPEED SHOP

$2,118.99

Features & Benefits:- * 4.250″ Bore Cylinder & CP Carrillo # CAR-M5110 = 11.0:1 Pistons * Black with CNC Machined Fins * Includes Dowel Pins (Does NOT include Pistons) * Replaces OEM # 168...

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ROLLIES SPEED SHOP

$2,118.99

Features & Benefits:- * 4.250″ Bore Cylinder & CP Carrillo # CAR-M5111 = 11.5:1 Pistons * Black with CNC Machined Fins * Includes Dowel Pins (Does NOT include Pistons) * Replaces OEM # 168...

FEULING

$550.99

* The strongest studs available! * Top engine builders demand quality fasteners! Secure your engine with complete confidence * Superior in strength and performance to any other cylinder stud kit o...

$258.99

Big bore, big compression and big throttle take their toll on hard parts and engine studs are no different. If your motor sees any of these we recommend stepping up to S&S Chrome Moly Head Stu...

KB PISTONS

$809.99

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...

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KB PISTONS

$798.99

Features & Benefits:- * Bore = 3.875″ * Stroke = 4.000″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...

KB PISTONS

$655.99

Features & Benefits:- * Bore = 3.437″ * Stroke = 3.969″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter ...