About Our Pistons
T-Man Performance Pistons have the latest and most up-to-date technology used in the high performance industry. While working with Wiseco on our piston shape and skirt profile, we have developed a piston shape that is second-to-none. It keeps the piston rock down immensely compared to other manufactured designs. This will keep the piston from thrusting hard on the cylinder wall and reduce ring blow-by at TDC and BDC when the piston changes direction. All of our pistons feature Wiseco signature ArmorFit silk screened coating on each piston skirt at 30 micron. This material will adjust itself to the cylinder wall to minimize piston noise. This adds superior protection in extreme conditions and will reduce wear on the piston. All of our pistons come standard with Tool Steel wrist pins; this adds superior strength while allowing us to run multiple wall thicknesses to keep larger displacement pistons lighter. We have also worked to enhance our ring quality. All T-Man Performance Pistons are supplied with the highest quality rings available from Total Seal. Featuring a 3mm oil ring for added tension, with a napier second and a stainless-steel top ring that ensures the best ring seal possible, our pistons are also compatible with other cylinders on the market.
$ 495.00
*Price does not include NC Sales Tax or shipping
Note: T-Man Performance products will not be sold to California.
Pistons for Twin Cam engines
SO3425
for Twin Cam 98″
Finished Bore Size: 3.937
Dome Volume: 15cc
Angle: TBD
Weight: TBD
Deck Height: TBD
SO3396
for Twin Cam 107″
Finished Bore Size: 3.937
Dome Volume: 15cc
Angle: In Chamber
Weight: TBD
Deck Height: TBD
TMP 5273
for Twin Cam 110″
Finished Bore Size: 4.003
Dome Volume: 18cc
Angle: 20°
Weight: 1,121.0 grams
Deck Height: 1.084″
SO3402
for Twin Cam 113″
Finished Bore Size: 4.060″
Dome Volume: 12cc
Angle: In Chamber
Weight: 1,105.0 grams
Deck Height: TBD
SO3399
for Twin Cam 117″
Finished Bore Size: 4.127
Dome Volume: 12cc
Angle: In Chamber
Weight: TBD
Deck Height: TBD
SO3350
for Twin Cam 117″ – 124″
Finished Bore Size: 4.125″
Dome Volume: 15cc
Angle: 20°
Weight: 1,151.0 grams
Deck Height: TBD
SO3401
for Twin Cam 124″
Finished Bore Size: 4.125
Dome Volume: 10cc
Angle: In Chamber
Weight: 1,115.2 grams
Deck Height: TBD
TMP 5037
for Twin Cam 131″/135″
Heads must be modified for 20° angle.
Finished Bore Size: 4.315
Dome Volume: 10cc
Angle: 20°
Weight: 1,216.2 grams
Deck Height: 1.082″
Pistons for Milwaukee 8 engines
TMP 5321
for Milwaukee 8 124″ (4.250″ x 4.375″)
Dome can be cut down to flat top.
Finished Bore Size: 4.251
Dome Volume: 6.5cc
Angle: In Chamber
Weight: 1,129.5 grams
Deck Height: 1.154″
TMP 5331
for Milwaukee 8 128″Â (4.250″ x 4.500″)
Dome can be cut down to flat top.
Finished Bore Size: 4.251
Dome Volume: 3.5cc
Angle: In Chamber
Weight: 1,184 grams
Deck Height: 1.092″
SO3426
for Milwaukee 8 128″
Finished Bore Size: TBD
Dome Volume: 10.5cc
Angle: In Chamber
Weight: TBD grams
Deck Height: TBD”
SO3397
for Milwaukee 8 131″/132″
Finished Bore Size: 4.312
Dome Volume: 10cc
Angle: In Chamber
Weight: 1,266.5 grams
Deck Height: TBD
TMP 5450
for Milwaukee 8 139″
Finished Bore Size: 4.441
Dome Volume: 7.5cc
Angle: In Chamber
Weight: 1,282.9 grams
Deck Height: 1.092″
SO3184
for Milwaukee 8 143″
Finished Bore Size: 4.440
Dome Volume: 5cc
Angle: In Chamber
Weight: 1,343.2 grams
Deck Height: TBD
SO3331
for Milwaukee 8 148″
Finished Bore Size: 4.500
Dome Volume: 1cc
Angle: In Chamber
Weight: 1,315.5 grams
Deck Height: TBD
Pistons for Sportster engines
TMP 1040
for 1200 Sportster
Heads must be modified for 20° angle.