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Engines, Bare Blocks
Engine Block, Pro LS, Bare, Cast Iron, 6-bolt Main Bolt Style, 6 Head bolt Pattern, 9.240 in. Std. Deck 4.125 in. Bore, GenIII/IV LS Chevrolet, Each
Part Number: SUM-150216
Estimated Ship Date: Today
Estimated Ship Date: Today
BUILD IT WITH SUMMIT!
Summit Racing™ SPC Pro LS Engine Block SUM-150215
Engine Block, Pro LS, Bare, Cast Iron, 6-bolt Main Bolt Style, 9.240 in. Std Deck, 4 Head Bolt, 4.065 in. Bore, GenIII/IV LS Chevrolet, 6.0/6.2, Each
Part Number: SUM-150215
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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
Estimated Ship Date: Today
Engine Block, LSX Bowtie, Bare, Cast Iron, 6-bolt Main Bolt Style, 9.260 in. Standard Deck, Semi Finished, Chevrolet, Each
Part Number: NAL-19417351
Estimated Ship Date: Feb 17, 2027 if ordered today
Estimated Ship Date: Feb 17, 2027 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Bare Block, LSR, Aluminum, LS Mains, 4.125 in. Bore, 9.25 in. Deck Height, Each
Part Number: FLE-FPELSRSD10X
Not Yet Reviewed
Estimated Ship Date: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
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: Nov 16, 2026 if ordered today
Estimated Ship Date: Nov 16, 2026 if ordered today
Bare Block, LTR, Aluminum, LS Mains, 4.125 in. Bore, 9.25 in. Deck Height, Each
Part Number: FLE-FPELTRSD10X
Not Yet Reviewed
Estimated Ship Date: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 2026 if ordered today
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: Nov 24, 2026 if ordered today
Estimated Ship Date: Nov 24, 2026 if ordered today
Engine Block, Cast Iron, 6-Bolt Mains, 3.640 in. Diameter Shipped Bore, 1-Piece Rear Main Seal, Ford, Coyote Modular, Each
Part Number: FMS-M-6010-M50X
Not Yet Reviewed
Estimated Ship Date: Nov 18, 2026 if ordered today
Estimated Ship Date: Nov 18, 2026 if ordered today
Block '6.6L L8T GEN V LT CAST IRON BLOCK
Part Number: NAL-19436495
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Bare Block
Part Number: NAL-19417353
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Block, LSX Bowtie, Bare, Cast Iron, 6-bolt Main Bolt Style, 9.240 in. Standard Deck, Chevrolet, Each
Part Number: NAL-19417352
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Block, LSX Bowtie, Bare, Cast Iron, 6-bolt Main Bolt Style, 9.720 in Tall Deck, Semi Finished, Chevy, Each
Part Number: NAL-19417354
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Block, Pro LS, Bare, Cast Iron, 4.125 in. 6-bolt Main Bolt Style, 9.705 in. Tall Deck, Chevrolet, Each
Part Number: SUM-150217
Not Yet Reviewed
Estimated Ship Date: Today
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
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: Today
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: Dec 17, 2026 if ordered today
Estimated Ship Date: Dec 17, 2026 if ordered today
Engine Block LS, SIAM, 9.240 x 4.000, BILLET MC, 4 HD BLT
Part Number: MLL-BPP12110358
Not Yet Reviewed
Estimated Ship Date: Dec 17, 2026 if ordered today
Estimated Ship Date: Dec 17, 2026 if ordered today
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 17, 2026 if ordered today
Estimated Ship Date: Dec 17, 2026 if ordered today
Engine Block LS, SIAM, 9.240 x 4.000, BILLET MC, 6 HD BLT
Part Number: MLL-BPP12110351
Not Yet Reviewed
Estimated Ship Date: Dec 17, 2026 if ordered today
Estimated Ship Date: Dec 17, 2026 if ordered today
Engine Block LS, SIAM, 9.705 x 4.125, BILLET MC, 6 HD BLT
Part Number: MLL-BPP12110361
Not Yet Reviewed
Estimated Ship Date: Dec 17, 2026 if ordered today
Estimated Ship Date: Dec 17, 2026 if ordered today
Engine Block LS, SIAM, 9.240 x 4.125, BILLET MC, 6 HD BLT
Part Number: MLL-BPP12110350
Not Yet Reviewed
Need It Sooner? We recommend these similar substitute parts:
Engine Block LS, SIAM, 9.240 x 4.125, CAST MC, 4 HD BLT
Part Number: MLL-BPP12110357
Not Yet Reviewed
Estimated Ship Date: Dec 17, 2026 if ordered today
Estimated Ship Date: Dec 17, 2026 if ordered today
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 17, 2026 if ordered today
Estimated Ship Date: Dec 17, 2026 if ordered today
