Engine Kits & Rotating Assemblies

BOTTOM END KIT Polaris

Part Number: HRI-HR00114

Not Yet Reviewed

Estimated Ship Date: Oct 20, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

BOTTOM END KIT Polaris

Part Number: HRI-HR00110

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

S&S 98 BIG BORE KIT BLK

Part Number: SSY-910-0481

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

ENGINE PERFORMANCE, 124" 4-1/8" BORE, CYLNDR ST 4-1/8" BR 124"

Part Number: SSY-910-0338

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Engine Rotating Assembly, Street/Strip, Cast Crank, Hypereutectic Pistons, I-Beam Rods, Ford, Small Block, Kit

Part Number: ESP-16524040

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Engine Rotating Assembly, Street/Strip, Cast Crank, Hypereutectic Pistons, I-Beam Rods, Chevy, Small Block, Kit

Part Number: ESP-13101060

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Engine Rotating Assembly, Street/Strip, Cast Crank, Hypereutectic Pistons, I-Beam Rods, Chevy, Small Block, Kit

Part Number: ESP-13054040

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

ROTATING ASSEMBLY

Part Number: ESP-B16002EA030

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Rotating Assembly, Street/Strip, Cast Steel Crankshaft, Hypereutectic Dish Pistons, 1 pc Seal, Chevy, 383, Kit

Part Number: ESP-B15504L03068

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Free Shipping

Engine Rotating Assembly, Street, Cast Crank, Pistons, Flat Top, I-Beam Rods, Chevy, Small Block, Kit

Part Number: ESP-B15405E030

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Today

• Free Shipping

Engine Rotating Assembly, Street/Strip, Cast Crank, Cast Aluminum Pistons, I-Beam Rods, Chevy, Small Block, Kit

Part Number: ESP-B15402E030

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Free Shipping

Pro LS 4340 Piston and Rod Kit, 377 Cid., 4.075 bore, 3.622 stroke, 6.125 rod, 2cc dome, 11.6:1 @ 65cc, 10.9:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR36L0752

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Pro LS 4340 Piston and Rod Kit, 378 Cid., 4.075 bore, 3.622 stroke, 6.125 rod, 12cc dish, 9.9:1 @ 65cc, 9.4:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR36L08012

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Pro LS Piston and Rod Kit, 325 Cid, 3.780 bore, Standard 3.622 stroke, 6.125 rod, 2cc dome, 10.9:1 @ 61cc, 10.3:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR36L7802

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Pro LS Piston and Rod Kit, 325 Cid., 3.780 bore, Standard 3.622 stroke, 6.125 rod, 7cc dish, 9.7:1 @ 61cc, 9.3:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR36L7807

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

• Free Shipping

Pro LS Piston and Rod Kit, 330 Cid., 3.810 bore, Standard 3.622 stroke, 6.098 rod, 7cc dish, 9.8:1 @ 61cc, 9.4:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR368107

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Pro LS Piston and Rod Kit, 332 Cid., 3.820 bore, Standard 3.622 stroke, 6.098 rod, 2cc dome, 11:1 @ 61cc, 10.5:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR368202

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Pro LS 4340 Piston and Rod Kit, 346 Cid., 3.898 bore, 3.622 stroke, 6.098 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR368983

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Pro LS 4340 Piston and Rod Kit, 347 Cid., 3.903 bore, 3.622 stroke, 6.098 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR369033

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Pro LS 4340 Piston and Rod Kit, 364 Cid., 4.000 bore, 3.622 stroke, 6.125 rod, 12cc Dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR36L00012

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Pro LS 4340 Piston and Rod Kit, 417 Cid., 4.075 bore, 4.000 stroke, 6.125 rod, 21cc dish, 9.9:1 @ 65cc, 9.5:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR4007521

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Pro LS 4340 Piston and Rod Kit, 417 Cid., 4.075 bore, 4.000 stroke, 6.125 rod, 6cc dish, 11.5:1 @ 65cc, 11:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR400756

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Pro LS 4340 Piston and Rod Kit, 417 Cid., 4.080 bore, 4.000 stroke, 6.125 rod,, File-Fit Rings 6cc dish, 11.6:1 @ 65cc, 11:1 @ 70cc

Part Number: SUM-PR400806

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Pro LS 4340 Piston and Rod Kit, 359 Cid., 3.780 bore, 4.000 stroke, 6.125 rod, 5cc dish, 10.9:1 @ 61cc, 10.4:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR407805

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Pro LS 4340 Piston and Rod Kit, 364 Cid., 3.810 bore, 4.000 stroke, 6.125 rod, 12cc dish, 10:2 @ 61cc, 9.7:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR4081012

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping