S&S Cycle

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

SKU 106-3688

MPN ssc106-3688

$514.95 · In stock

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

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 bored to accomodate larger pistons, but we recommend S&S 3.927" bore cylinders which feature high strength alloyed cast iron liners. Pistons are compatible with stock rods with tapered wristpin ends. S&S® 3.927" bore pistons are machined to such close tolerances that it is not necessary to measure the piston. Just bore cylinders to nominal diameter +/- 0.0005" for correct clearance. Additionally, the low friction coating on the piston skirt makes taking measurements very difficult. 3.927" standard bore.

Confirmed vehicle fitment
YearsMakeModelSubmodelDrive
2001Harley-DavidsonFXDWG2Base—
2001–2006Harley-DavidsonFXSTBI Night TrainBase—
1999–2005Harley-DavidsonFXD Dyna Super GlideBase—
2002Harley-DavidsonFXDWG3Base—
2001–2003Harley-DavidsonFXDXT Dyna Super Glide T-SportBase—
2000–2006Harley-DavidsonFXSTS Springer SoftailBase—
2004–2006Harley-DavidsonFLHRS Road King CustomBase—
1999–2006Harley-DavidsonFLHT Electra Glide StandardBase—
2006Harley-DavidsonFLHX Street GlideBase—
2003Harley-DavidsonFLHTC Electra Glide ClassicBase—
2000–2006Harley-DavidsonFXSTD Softail DeuceBase—
2000–2003Harley-DavidsonFLSTS Heritage SpringerBase—
2004–2005Harley-DavidsonFXDXI Dyna Super Glide SportBase—
2000–2006Harley-DavidsonFXSTB Night TrainBase—
2006Harley-DavidsonFLST Heritage SoftailBase—
1999–2005Harley-DavidsonFXDX Dyna Super Glide SportBase—
2005–2006Harley-DavidsonFLSTN Softail DeluxeBase—
1999–2005Harley-DavidsonFXDWG Dyna Wide GlideBase—
1999–2002Harley-DavidsonFLTR Road GlideBase—
2005Harley-DavidsonFXDC Super Glide CustomBase—
2000–2006Harley-DavidsonFLSTC Heritage Softail ClassicBase—
1999–2006Harley-DavidsonFLHR Road KingBase—
2000–2006Harley-DavidsonFXST Softail StandardBase—
2000–2006Harley-DavidsonFLSTF Fat BoyBase—
1999–2005Harley-DavidsonFXDL Dyna Low RiderBase—
Specifications
CategoryEngine Components
Sub-CategoryPiston Sets - Powersports
UPC106-3688
CARB ApprovedNo
Special OrderYes
Weight2.8 lb
Dimensions (L×W×H)8.5 × 4.7 × 4.7 in