Availability
Powersports Top End Engine Kits
S&S Cycle 84-99 BT 96in 3-5/8in Big Bore Cylinder & Piston Kit For S&S SH96 Engines - Wrinkle Black
Part Number: SSY-91-7707
Not Yet Reviewed
Estimated Ship Date: Dec 7, 2026 if ordered today
Estimated Ship Date: Dec 7, 2026 if ordered today
2017+ M8 Models 4.250in Bore x 4.5in Stroke 114 To 128 Big Bore Kit
Part Number: SSY-910-0684A
Not Yet Reviewed
Estimated Ship Date: Dec 7, 2026 if ordered today
Estimated Ship Date: Dec 7, 2026 if ordered today
ProX Top End Kit BRP 600HO Etec '09-18
Part Number: PXR-11-5613-000
Not Yet Reviewed
Estimated Ship Date: Oct 30, 2026 if ordered today
Estimated Ship Date: Oct 30, 2026 if ordered today
S&S Cycle Royal Enfield 650 Twins 865cc Big Bore Kit
Part Number: SSY-920-0145
Not Yet Reviewed
Estimated Ship Date: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 2026 if ordered today
Cyl. Head Serv. Kit, Polaris®, RZR 900, 2015-2016
Part Number: KPM-82-83240
Not Yet Reviewed
Estimated Ship Date: Nov 27, 2026 if ordered today
Estimated Ship Date: Nov 27, 2026 if ordered today
Cyl. Head Serv. Kit, Polaris®, RZR 900, 2013-2014
Part Number: KPM-82-83210
Not Yet Reviewed
Estimated Ship Date: Nov 27, 2026 if ordered today
Estimated Ship Date: Nov 27, 2026 if ordered today
Cyl. Head Serv. Kit (89mm Bore), KTM®, RFS's 450-560cc, 2000-2009
Part Number: KPM-96-96560
Not Yet Reviewed
Estimated Ship Date: Nov 23, 2026 if ordered today
Estimated Ship Date: Nov 23, 2026 if ordered today
BORE KIT - 88CC
Part Number: BRM-411-HXR-7001
Not Yet Reviewed
Estimated Ship Date: Oct 28, 2026 if ordered today
Estimated Ship Date: Oct 28, 2026 if ordered today
Racing Spring Kit, Titanium, 0.630" Lift, Harley-Davidson®, Milwaukee-Eight, 2017-'24
Part Number: KPM-20-23800
Not Yet Reviewed
Estimated Ship Date: Nov 23, 2026 if ordered today
Estimated Ship Date: Nov 23, 2026 if ordered today
Top End Engine Kits STANDARD BORE KIT STANDARD BORE KIT
Part Number: CLW-60001-K01
Not Yet Reviewed
Estimated Ship Date: Oct 30, 2026 if ordered today
Estimated Ship Date: Oct 30, 2026 if ordered today
Top End Engine Kits CYL WORKS BIG BORE KIT POLARIS CYL WORKS BIG BORE KIT POLARIS RZR 800
Part Number: CLW-61002-K01
Not Yet Reviewed
Estimated Ship Date: Oct 30, 2026 if ordered today
Estimated Ship Date: Oct 30, 2026 if ordered today
ProX Top End Kit AC 600CTEC '14-21
Part Number: PXR-11-5614-000
Not Yet Reviewed
Estimated Ship Date: Nov 2, 2026 if ordered today
Estimated Ship Date: Nov 2, 2026 if ordered today
Racing Spring Kit, HT Steel, 0.450" Lift, Polaris®, Various 4 cyl., 2020-2023
Part Number: KPM-82-86065
Not Yet Reviewed
Estimated Ship Date: Nov 23, 2026 if ordered today
Estimated Ship Date: Nov 23, 2026 if ordered today
S&S Cycle 2017+ M8 Models 4.320in Bore 4.500in Stroke Cylinder Kit - Wrinkle Black w/o Highlight
Part Number: SSY-910-0846
Not Yet Reviewed
Estimated Ship Date: Dec 7, 2026 if ordered today
Estimated Ship Date: Dec 7, 2026 if ordered today
S&S Cycle 79-84 BT 88in Sidewinder 3-5/8in Big Bore Cylinder Kit - Gloss Black
Part Number: SSY-91-9001
Not Yet Reviewed
Estimated Ship Date: Dec 7, 2026 if ordered today
Estimated Ship Date: Dec 7, 2026 if ordered today
S&S Cycle 84-99 BT 96in 3-5/8in Big Bore Cylinder & Piston Kit For S&S SH96 Engines - Natural
Part Number: SSY-91-7207
Not Yet Reviewed
Estimated Ship Date: Dec 7, 2026 if ordered today
Estimated Ship Date: Dec 7, 2026 if ordered today
Top End Engine Kit, M8 124 in. Big Bore, Wrinkle Black Finish with Highlighted Fins, 4.250 in., Forged Piston, Harley-Davidson®, Kit
Part Number: SSY-910-0625
Not Yet Reviewed
Estimated Ship Date: Dec 7, 2026 if ordered today
Estimated Ship Date: Dec 7, 2026 if ordered today
07-16 BT 117in Low Compression 4-1/8in Big Bore Kit - Wrinkle Black
Part Number: SSY-910-0318
Not Yet Reviewed
Estimated Ship Date: Dec 7, 2026 if ordered today
Estimated Ship Date: Dec 7, 2026 if ordered today
S&S Cycle Royal Enfield 650 Twins 750cc Big Bore Kit
Part Number: SSY-920-0144
Not Yet Reviewed
Estimated Ship Date: Dec 7, 2026 if ordered today
Estimated Ship Date: Dec 7, 2026 if ordered today
84-99 BT 96in 3 5/8in Big Bore Cylinder & Intermediate Compression Piston Kit - Natural
Part Number: SSY-91-7054
Not Yet Reviewed
Estimated Ship Date: Dec 7, 2026 if ordered today
Estimated Ship Date: Dec 7, 2026 if ordered today
2017+ M8 Models 4.320in Bore 4.500in Stroke Cylinder Kit - Wrinkle Black w/o Highlight
Part Number: SSY-910-0846A
Not Yet Reviewed
Estimated Ship Date: Dec 7, 2026 if ordered today
Estimated Ship Date: Dec 7, 2026 if ordered today
S&S Cycle 84-99 BT 88in 3 5/8in Big Bore Cylinder & Piston Kit - Natural
Part Number: SSY-91-7002
Not Yet Reviewed
Estimated Ship Date: Dec 7, 2026 if ordered today
Estimated Ship Date: Dec 7, 2026 if ordered today
2017 M8 Touring 4.250in Bore x 4.375in Stroke 107 To 124 Big Bore Kit
Part Number: SSY-910-0625A
Not Yet Reviewed
Estimated Ship Date: Dec 7, 2026 if ordered today
Estimated Ship Date: Dec 7, 2026 if ordered today
ENGINE CYLINDERS, 07-UP TWINCAM (EXC 17 FLH/FLT INC 06 DYNA), POWER PACK 585GE SIL
Part Number: SSY-330-0667
Not Yet Reviewed
Estimated Ship Date: Dec 7, 2026 if ordered today
Estimated Ship Date: Dec 7, 2026 if ordered today
2017+ M8 Models 4.250in Bore 4.500in Stroke Cylinder Kit - Wrinkle Black w/o Highlight
Part Number: SSY-910-0685A
Not Yet Reviewed
Estimated Ship Date: Dec 7, 2026 if ordered today
Estimated Ship Date: Dec 7, 2026 if ordered today
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