T-Man 124 Cylinder and Piston Kits for 120R Upgrade
This upgrade includes the use of a stock cylinder that is finished bored and honed by T-Man Performance to our specifications to match our custom pistons. Case boring is not required. These kits are supplied with pistons with a +4cc Dome profile to work with a 120R/120ST Twin Cam combustion chamber. This combination will yield a 10.8 compression on a stock cylinder head.