Engine Blocks & Parts

Main Bolts, 6-bolt Mains, Flanged Hex, Chevy GM, LS/LSX, Gen III/IV, Kit

Part Number: SUM-910229

4.53 out of 5 stars ( 15 )

Estimated Ship Date: Today

• Free Shipping

Engine Block, Aluminum, 6-Bolt Mains, 4.120 in. Diameter Bore, Standard Deck, Raised Camshaft Location, 1-Piece Rear Main Seal, Chevy, LS, Each

Part Number: EDL-54903U-904

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Engine, Bare Block, RHS Racing Style, 4.125 in. Diameter Bore, 1-Piece Rear Main Seal, 6-Bolt Mains, A-357 Aluminum, Requires Honing, Chevy, LS, Each

Part Number: EDL-54903U

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Lifter Valley Plate, LS Lifter Valley Cover, Aluminum, Natural, Oil Pressure Sensor Port, Chevrolet, Small Block LS, Each

Part Number: ICB-551606LS

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Engine Block, Aluminum, 6-Bolt Mains, 4.125 in. Diameter Bore, 1-Piece Rear Main Seal, Chevy, LS, Tall, Each

Part Number: EDL-54901U

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Engine Block, SHP LS Next, Bare Block, 4.125 in Bore, 9.240 Deck, 4-Bolt Mains, Cast Iron, GM LS-Series, Each

Part Number: DRT-31867211

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Cylinder Head Dowel Pin, Solid, Chevy GM, LS/LSX, Gen III/IV For use with standard or 1/2 in. head studs. Set of 4

Part Number: SUM-910233

Not Yet Reviewed

Estimated Ship Date: Today

Adapter, Oil Cooler, Billet Aluminum, Black Anodized, GM, LS, Each

Part Number: DER-35611

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Engine Block, 6.0L, LQ4/LQ9, Cast Iron, 9.240 in Deck Height, 4.002 in. Cylinder Bore, Chevy, Each

Part Number: NAL-12733807

Not Yet Reviewed

Estimated Ship Date: Feb 24, 2027 if ordered today

• Free Shipping

Main Bolts, Side Bolts Only, 6-bolt Style, Hex, Chevy, LS, Set of 10

Part Number: SUM-910229-3

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Engine Block, Aluminum, 6-Bolt Mains, 4.120 in. Diameter Bore, Tall Deck, Raised Camshaft Location, 1-Piece Rear Main Seal, Chevy, LS, Each

Part Number: EDL-54901U-904

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Lifter Valley Plates, LS Valley, Billet Aluminum, Trussed with Oil Fill, Black Anodized, 11-Bolt Pattern, Chevy, LS, 6.0L, 6.2L, 7.0L, Each

Part Number: HLY-241-362

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Engine Block, LS Next, Aluminum, 4.125 in. Diameter Bore, 4-Bolt Mains, Chevy, LS, Each

Part Number: DRT-31937211

Not Yet Reviewed

Estimated Ship Date: Feb 22, 2027 if ordered today

• Free Shipping
• Special Order

Adapter, Oil Cooler, Billet Aluminum, Thermostat, Black Anodized, GM, LS, Each

Part Number: DER-35621

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Free Shipping

Engine Block, SHP LS Next, Bare Block, 4.125 in Bore, 9.240 Deck, 4-Bolt Mains, Cast Aluminum, GM LS-Series, Each

Part Number: DRT-31947212

Not Yet Reviewed

Estimated Ship Date: Feb 22, 2027 if ordered today

• Free Shipping
• Special Order

Engine Block, LS Next, Aluminum, 4.125 in. Diameter Bore, 4-Bolt Mains, Raised Cam, Chevy, LS, Each

Part Number: DRT-31937212

Not Yet Reviewed

Estimated Ship Date: Feb 22, 2027 if ordered today

• Free Shipping
• Special Order

Engine Block, LS Next, Aluminum, 4.000 in. Diameter Bore, 4-Bolt Mains, Chevy, LS, Each

Part Number: DRT-31937111

Not Yet Reviewed

Estimated Ship Date: Feb 22, 2027 if ordered today

• Free Shipping
• Special Order

Bare Block, Cast Iron, LS Mains, 4.125 in. Bore, 9.24 in. Deck Height, Each

Part Number: DRT-31867212

5.0 out of 5 stars ( 1 )

• Free Shipping
• Special Order

Engine Block LS, SIAM, 9.705 x 4.000, BILLET MC, 6 HD BLT

Part Number: MLL-BPP12110360

Not Yet Reviewed

Estimated Ship Date: Dec 30, 2026 if ordered today

• Free Shipping
• Special Order

Engine Block LS, SIAM, 9.240 x 4.000, CAST MC, 4 HD BLT

Part Number: MLL-BPP12110356

Not Yet Reviewed

Estimated Ship Date: Dec 30, 2026 if ordered today

• Free Shipping
• Special Order

Lifter Valley Cover, Finned, Aluminum, Polished, Chevy, LS, Each

Part Number: SUM-240065-POL

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Engine Block LS, SIAM, 9.240 x 4.125, BILLET MC, 4 HD BLT

Part Number: MLL-BPP12110359

Not Yet Reviewed

Estimated Ship Date: Jan 11, 2027 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Bare Blocks, Dart LS Next Series, Aluminum, 9.450 in Deck Height, 4.125 in Bore, Steel Main, 4-Bolt Mains,1-Piece Rear Main Seal, LS Gen III/IV, Chevy

Part Number: DRT-31947222

Not Yet Reviewed

Estimated Ship Date: Feb 22, 2027 if ordered today

• Free Shipping
• Special Order

Engine Block, LS Next, Aluminum, 4.125 in. Diameter Bore, 4-Bolt Mains, Chevy, LS, Each

Part Number: DRT-31937221

Not Yet Reviewed

Estimated Ship Date: Feb 22, 2027 if ordered today

• Free Shipping
• Special Order