S&S Cycle 36-78 BT 3-7/16in Piston Set - Standard - 106-5495

Includes Super Stock® cylinder heads, a pair of S&S® stock bore cylinders (37/16" for 74" and 31/2" for 80"), 8:1 compression forged pistons with rings and wristpins, manifold clamps, manifold seals,...

S&S Cycle 2007+ BT 3.927in +.010in Bore 106in Big Bore Forged Pistons - 106-4416

These big bore pistons work with the stock 4-3/8" stroke flywheels to convert any 2007-'16 HD® big twin engine from 96" or 103" to 106" displacement with 10:1 compression with stock heads. Stock...

S&S Cycle 99-06 BT 3.927in +.010in Bore 97in Big Bore Forged Pistons - 106-4414

These big bore pistons work with the stock 4" stroke flywheels to convert any 1999-'06 HD® big twin engine from 88" to 97" displacement with 9.7:1 compression with stock heads. Stock cylinders may be...

S&S Cycle 1999+ BT 4-1/2in Stroke 3-7/8in Bore Rear Cylinder Assembly - 106-4066

S&S Cycle 1999+ BT 4-1/2in Stroke 3-7/8in Bore Rear Cylinder Assembly

S&S Cycle 1999+ BT 4-1/2in Stroke 3-7/8in Bore Front Cylinder Assembly - 106-4065

S&S Cycle 1999+ BT 4-1/2in Stroke 3-7/8in Bore Front Cylinder Assembly

S&S Cycle 2007+ BT 4-1/8in .020in Front Pistons - 106-3965A

S&S Cycle 2007+ BT 4-1/8in .020in Front Pistons

S&S Cycle 2007+ BT 4-1/8in FD Piston Set - .020in - 106-3964A

Fits: 1984-'16 HD® big twins 4 1/8 bore. Stock or S&S® heads. Piston kits include set of pistons, rings, wristpins, and clips.

S&S Cycle 2007+ BT 4-1/8in Piston Set - .010in - 106-3872A

Fits: 1984-'16 HD® big twins 4 1/8 bore. Stock or S&S® heads. Piston kits include set of pistons, rings, wristpins, and clips

S&S Cycle 07-17 BT 3.927in Standard Bore 106in Big Bore Forged Piston Set - 106-3690

These big bore pistons work with the stock 4-3/8" stroke flywheels to convert any 2007-'16 HD® big twin engine from 96" or 103" to 106" displacement with 10:1 compression with stock heads. Stock...

S&S Cycle 99-06 BT 3.927in Standard Bore 97in Big Bore Forged Piston Set - 106-3688

These big bore pistons work with the stock 4" stroke flywheels to convert any 1999-'06 HD® big twin engine from 88" to 97" displacement with 9.7:1 compression with stock heads. Stock cylinders may be...

S&S Cycle 2007+ BT 4-1/8in FD Piston Set - 106-3491A

S&S® 41/8" BORE FORGED PISTON KITS FOR HOT SET UP KITS ® for 1984-'16 HD® big twins. Piston kits include set of pistons, rings, wristpins, and clips.

S&S Cycle 2007+ BT 3-7/8in x 4-3/8in Piston Set - .010in - 106-0434

3-7/8" Bore For 103" Engines. S&S® 3-7/8" pistons for 103" kits are machined to such close tolerances that it is not necessary to measure the piston. Additionally, the low friction coating on the...