Vehicle Fitment Information
Engine & Performance
S&S Big Bore Kits
$1,640.95 - $2,210.95
Big Bore kits yielding excellent results with stock cylinder heads. Features easy installation with no case boring or splitting (unless noted). Cylinders made from premium aluminum castings with cast-in iron liners. Kits include cylinders, pistons, rings, and gaskets.
Find Your Vehicle
Search by year, make, or model to see which options fit your ride:
106" Kits for 07-17 Twin Cam
3.927" Bore, 4-3/8" Stroke, 10:1 Compression with stock heads.
107" Kits for 07-17 Twin Cam
3.937" Bore, 4-3/8" Stroke, 9.9:1 Compression with stock heads.
117" Kits for 07-17 Twin Cam
4.125" Bore, 4-3/8" Stroke, 10.9:1 Compression with stock heads.
124" Kits for 07-17 Twin Cam
4.125" Bore, 4-5/8" Stroke, 11.4:1 Compression with stock heads.
95" Kits for 99-06 Twin Cam
3.875" Bore, 4" Stroke, 9.7:1 Compression with stock heads.
97" Kits for 99-06 Twin Cam
3.927" Bore, 4" Stroke, 9.7:1 Compression with stock heads.
98" Kits for 99-06 Twin Cam
3.937" Bore, 4" Stroke, 9.8:1 Compression with stock heads.
