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Important Note: Some items on this page may be emission-related parts subject to CA or NY or other emission control laws. Please see 
note on for important information regarding emission control regulatory compliance and warranty information.
MC Forged Piston Set for Big 
Bore cylinders on Twin Cam.
Rings are included.
VT No.  Size 
Ring Set (Std)
11-0287 107”  11-0291
15-1375  Top End Gasket Kit
TC Big Bore Kit
110" Motorshop 4" Big Bore Bolt-On Cylinder and Piston 
Kit takes your 96 or 103 cubic inch motor to a full 110 cubic 
inches without removing the engine from chassis. 4
” Big Bore 
Cylinder and Piston package increases the internal bore from 
37/8
” to 4”, without increasing the outside diameter of the cylin-
der spigot. The cylinder slips into the existing case bore without 
modification. Kit will add a whooping 7 cubic inches of dis-
placement for more torque throughout the RPM range. This kit 
includes front and rear cylinder, system-matched pistons with 
rings. Fits 2007-17 FXST, FLST, FXD, 2007-16 FLT.
VT No.   Item
11-1523 Complete Kit
11-1421 Cylinder Only, each
110”
11-0331
11-1421
Gary Bang Top End Gasket Kit 
for TC-95 and TC-103 applica-
tion. Fits 1999-04 FLT, FXD, 
2000-04 FXST, FLST.
VT No. 15-1471
M-8 Big Bore Black Cylinder Set with machined edge fins 
increase the bore size from 124” to 128”. These cylinders have 
4.250” bore and require the use of Wiseco piston set 11-9983. 
For use with stock 4.375” flywheels but require case boring. 
Black cylinder set with machined edge fins also feature a 
slightly larger fin area for better heat dissipation and increased 
cooling.
VT No. 11-1196
Twin Cam Stock Replacement Cylinder 
available in black finish with machined fin-
ish fins. Available for 96” with 3.750” bore 
and 103” with 3.875” bore. Sold each. For 
use with stock stroke flywheels.
VT No.   OEM 
Engine Type
11-1194  17458-07A  96”
11-1195  17460-07A  103”
11-1195
TC-88 Big Bore 95” Piston Kits sold in pairs, include rings, 
clips and pins, available in flat top 9.3:1 compression ratio or 
high compression 10.25:1. Order gasket set separately.
Size 
9.3:1  10.25:1 Type
Standard 
    — 
11-0331  Cast
Standard 
11-0263      — 
Cast, V-Twin, No Coating
.005 
    — 
11-0332  Cast
Head Gaskets  15-0376  15-0376
Top End Kit  15-0377  15-0377
Standard Ring  11-1354  11-1354
Pin Lock 
11-0856  11-0856
11-0263
M-8 Big Bore Cylinder Set
M-8 Motor Mount Components
VT  No. 
OEM 
   Item
31-1726  1050087     Bolt
31-1728  16400051  Top Mount, Mid
31-0912  16400060  Front Mount
31-1727  47200430  Bolt Spacer
31-0918  16400061  Intermediate Mount
31-1726
31-1728