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Engine - Cylinder Kits

565 products
Powersport Superstore is your go-to source for Engine - Cylinder Kits and related parts. Shop our unbeatable selection of Cylinder Kits with top-tier service, fast shipping, and great prices.
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10% Off
S&S Cycle 310-1110A 128in. Power Package for M8 - Gear Cam - Oil Cooled - Black Granite w/ Highlighted Fins
$3,114.86
$3,114.86
$3,460.95
For M8 models with 4.500in. stroke. Big-bore bolt-on kit increases your 114in./ 117in. with 4.5in. stroke M-Eight to 128in. with no case machining required. 4 1/4in. bore cylinders with 11:1 forged...
10% Off
S&S Cycle 310-1102A 128in. Power Package for M8 - Gear Cam - Water Cooled - Wrinkle Black w/ Highlighted Fins
$3,114.86
$3,114.86
$3,460.95
For M8 models with 4.500in. stroke. Big-bore bolt-on kit increases your 114in./ 117in. with 4.5in. stroke M-Eight to 128in. with no case machining required. 4 1/4in. bore cylinders with 11:1 forged...
10% Off
S&S Cycle 310-1103B 128in. Power Package for M8 - Chain Cam - Oil Cooled - Wrinkle Black w/ Highlighted Fins
$2,939.36
$2,939.36
$3,265.95
For M8 models with 4.500in. stroke. Big-bore bolt-on kit increases your 114in./ 117in. with 4.5in. stroke M-Eight to 128in. with no case machining required. 4 1/4in. bore cylinders with 11:1 forged...
10% Off
S&S Cycle 310-1059A 124in. Power Package - Gear Cam, Oil Cooled, Black Pushrods, Wrinkle Black w/o Highlighted Fins
$3,326.36
$3,326.36
$3,695.95
Increase your 107in. M-Eight engine to 124in. with this bolt-on power package. 4-1/4in. bore cylinders with 11:1 forged pistons. Wrinkle black finish cylinders with or without fin highlighting. S&a...
10% Off
S&S Cycle 310-1058A 124in. Power Package - Gear Cam, Oil Cooled, Black Pushrods, Wrinkle Black w/ Highlighted Fins
$3,114.86
$3,114.86
$3,460.95
Increase your 107in. M-Eight engine to 124in. with this bolt-on power package. 4-1/4in. bore cylinders with 11:1 forged pistons. Wrinkle black finish cylinders with or without fin highlighting. S&a...
10% Off
S&S Cycle 310-1104A 128in. Power Package for M8 - Gear Cam - Oil Cooled - Wrinkle Black w/ Highlighted Fins
$3,114.86
$3,114.86
$3,460.95
For M8 models with 4.500in. stroke. Big-bore bolt-on kit increases your 114in./ 117in. with 4.5in. stroke M-Eight to 128in. with no case machining required. 4 1/4in. bore cylinders with 11:1 forged...
10% Off
S&S Cycle 310-1053A 124in. Power Package - Gear Cam, Oil Cooled, Chrome Pushrods, Wrinkle Black w/ Highlighted Fins
$3,114.86
$3,114.86
$3,460.95
Increase your 107in. M-Eight engine to 124in. with this bolt-on power package. 4-1/4in. bore cylinders with 11:1 forged pistons. Wrinkle black finish cylinders with or without fin highlighting. S&a...
9% Off
S&S Cycle 330-0668 Power Package - Chain Drive - Black
$3,036.30
$3,036.30
$3,345.95
Largest big bore kits available without doing crankcase mods. Includes an S&S 4in. big bore cylinder kit with 10.5:1 pistons, S&S 585 easy start cams, S&S Quickee Pushrods, and S&S ...
9% Off
S&S Cycle 330-0662 Power Package - Chain Drive - Silver
$3,036.30
$3,036.30
$3,345.95
Largest big bore kits available without doing crankcase mods. Includes an S&S 4in. big bore cylinder kit with 10.5:1 pistons, S&S 585 easy start cams, S&S Quickee Pushrods, and S&S ...
9% Off
S&S Cycle 330-0669 Power Package - Gear Drive - Black
$3,146.10
$3,146.10
$3,467.95
Largest big bore kits available without doing crankcase mods. Includes an S&S 4in. big bore cylinder kit with 10.5:1 pistons, S&S 585 easy start cams, S&S Quickee Pushrods, and S&S ...
6% Off
S&S Cycle 330-0667 Power Package - Gear Drive - Silver
$3,277.19
$3,277.19
$3,467.95
Largest big bore kits available without doing crankcase mods. Includes an S&S 4in. big bore cylinder kit with 10.5:1 pistons, S&S 585 easy start cams, S&S Quickee Pushrods, and S&S ...
10% Off
S&S Cycle 90-1491 Super Stock Cylinder Heads (O-ring Intake) - 3-5/8in. Bore, High Compression - Natural Finish
$1,705.26
$1,705.26
$1,886.95
Dual Plugs/internal Oil Drains. Heads come completely assembled with valve seats, valves, guides, seals, .590in. lift valve springs, collars and valve keepers. Complete kits also include rocker co...
S&S Cycle 910-0850 136in. Big Bore Kit - Wrinkle Black with Highlighted Fin
$1,599.95
$1,599.95
These S&S Big Bore Kits are made to take your 107in. M8 up to 129in. and your 114in. M8 up to 132in. If pairedwith the S&S Stroker Crank you can take your 114in. up to 136in. 136in. kits mu...
10% Off
S&S Cycle 910-0849 136in. Big Bore Kit - Wrinkle Black without Highlighted Fin
$1,439.96
$1,439.96
$1,599.95
These S&S Big Bore Kits are made to take your 107in. M8 up to 129in. and your 114in. M8 up to 132in. If pairedwith the S&S Stroker Crank you can take your 114in. up to 136in. 136in. kits mu...
10% Off
S&S Cycle 910-0844 129in. Big Bore Kit - Wrinkle Black without Highlighted Fin
$1,432.19
$1,432.19
$1,599.95
These S&S Big Bore Kits are made to take your 107in. M8 up to 129in. and your 114in. M8 up to 132in. If paired with the S&S Stroker Crank you can take your 114in. up to 136in. 136in. kits m...
10% Off
S&S Cycle 910-0847 132in Big Bore Kit for M-Eight Engines
$1,483.16
$1,483.16
$1,649.95
132in. BIG BORE KIT FOR M-EIGHT 114in./ 117in. ENGINES. Bolt-on kit, the largest cylinder bore possible without requiring machining of the crankcases. 4.320in. bore and 4.5in. stroke. 11:1 forged p...
10% Off
S&S Cycle 910-0685 M8 128in. Big Bore Kit - 4.250 Bore, 4.5 Stroke, Non-Highlighted Fins - Black
$1,405.76
$1,405.76
$1,561.95
Available for both 107 and 114 M8 models. Available in both highlighted and non highlighted versions. Wrinkle black finish. Non-highlighted fins. Bolt-on kit. Largest bore possible without machinin...
10% Off
S&S Cycle 910-0650 Bolt-In Sidewinder 4in. Big Bore Kit - 110in. - Silver
$1,409.36
$1,409.36
$1,565.95
Bolt in - no machining, balancing, or splitting the crankcases; install can be performed with engine still in frame. Cast Ductile Iron Sleeve in cast aluminum for superior heat transfer. 88in. engi...
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