Availability
Engines, Bare Blocks
Engine Block, Cast Iron, Nodular Iron Splayed 4-Bolt Mains, 4.495 in. Bore, 2-Piece Seal, 10.200 in. Deck, Chevy, Big Block, Each
Part Number: WRL-091111
Estimated Ship Date: Nov 17, 2026 if ordered today
Estimated Ship Date: Nov 17, 2026 if ordered today
Engine Block, Cast Iron, 4-Bolt Mains, 4.240 in. Diameter Bore, 2-Piece Rear Seal, Chevy, Big Block Mark IV
Part Number: NAL-19212197
Not Yet Reviewed
Estimated Ship Date: Jan 20, 2027 if ordered today
Estimated Ship Date: Jan 20, 2027 if ordered today
Engine Block, Race Series, Aluminum, 4-Bolt Mains, 10.2 Deck, 4.600 in. Dia., Bore, 2-Piece Seal, Chevy, Each
Part Number: DRT-31264655
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2027 if ordered today
Estimated Ship Date: Feb 18, 2027 if ordered today
Engine Block, Cast Iron, Nodular Iron 4-Bolt Mains, 4.560 in. Bore, 1-Piece Seal, 10.200 in. Deck, Chevy, Big Block, Each
Part Number: NAL-19432546
Not Yet Reviewed
Estimated Ship Date: Feb 17, 2027 if ordered today
Estimated Ship Date: Feb 17, 2027 if ordered today
Engines, Bare Block, Cast Iron, Merlin IV BBC, 10.200 in. Deck, 4.595 in. Bore, Splayed Billet Caps, Standard Cam Bearings and Lifters, Each
Part Number: WRL-095112
Estimated Ship Date: Nov 17, 2026 if ordered today
Estimated Ship Date: Nov 17, 2026 if ordered today
Engine Block BBC, 2PC, SIAM, 10.200 x 4.500, CAST MC
Part Number: MLL-BPP12110329
Not Yet Reviewed
Estimated Ship Date: Dec 21, 2026 if ordered today
Estimated Ship Date: Dec 21, 2026 if ordered today
Engine Block, Bare, Cast Iron, 4-Bolt Mains, 4.494 in. Diameter Bore, 2-Piece Rear Main Seal, 10.200 in. Tall Deck, Chevy, Big Block, Each
Part Number: NAL-19212194
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Engine Block BBC, 2PC, SIAM, 10.200 x 4.250, BILLET MC
Part Number: MLL-BPP12110333
Not Yet Reviewed
Estimated Ship Date: Dec 18, 2026 if ordered today
Estimated Ship Date: Dec 18, 2026 if ordered today
Engine Block BBC, 2PC, SIAM, 10.200 x 4.600, CAST MC
Part Number: MLL-BPP12110326
Not Yet Reviewed
Estimated Ship Date: Dec 21, 2026 if ordered today
Estimated Ship Date: Dec 21, 2026 if ordered today
Engine Block, Big Block Chevrolet, Bare, Cast Iron Block, 4-bolt Main, 10.200 in. Deck Height, 4.596 in. Bore, Each
Part Number: CPI-000-1331-01
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2027 if ordered today
Estimated Ship Date: Apr 6, 2027 if ordered today
Bare Blocks, Dart Big M Sportsman Series, Cast Iron,10.200 in. Deck Height, 4.600 in,Bore,4-Bolt Main,2-Piece Rear Main Seal, Big Block, Chevy, Each
Part Number: DRT-31223655
Not Yet Reviewed
Estimated Ship Date: Feb 10, 2027 if ordered today
Estimated Ship Date: Feb 10, 2027 if ordered today
Engine Block, Cast Iron, Nodular Iron Splayed 4-Bolt Mains, 4.595 in. Bore, 2-Piece Seal, 10.200 in. Deck, Chevy, Big Block, Each
Part Number: WRL-091112
Not Yet Reviewed
Estimated Ship Date: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 2026 if ordered today
Engine Bare Blocks, Dart Big M Series, Aluminum, 10.20 in. Tall Deck, 4.250 in. Bore. 4-Bolt Mains, 2 Piece Rear Main Seal, Chevy, Big Block, Each
Part Number: DRT-31264354
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2027 if ordered today
Estimated Ship Date: Feb 18, 2027 if ordered today
Bare Blocks, Dart Big M Sportsman Series, Cast Iron,10.200 in. Deck Height, 4.250 in,Bore,4-Bolt Main,2-Piece Rear Main Seal, Big Block, Chevy, Each
Part Number: DRT-31223355
Not Yet Reviewed
Estimated Ship Date: Feb 10, 2027 if ordered today
Estimated Ship Date: Feb 10, 2027 if ordered today
Engine Block BBC, 2PC, SIAM, 10.200 x 4.500, BILLET MC
Part Number: MLL-BPP12110325
Not Yet Reviewed
Estimated Ship Date: Dec 17, 2026 if ordered today
Estimated Ship Date: Dec 17, 2026 if ordered today
Bare Blocks, Dart Big M Sportsman Series, Cast Iron,10.200 in. Deck Height, 4.500 in,Bore,4-Bolt Main,2-Piece Rear Main Seal, Big Block, Chevy, Each
Part Number: DRT-31223454
Not Yet Reviewed
Engine Block, Big Block Chevrolet, Bare, Cast Iron Block, 4-bolt Main, 10.200 in. Deck Height, 4.246 in. Bore, Each
Part Number: CPI-000-1332-01
Not Yet Reviewed
Estimated Ship Date: Apr 8, 2027 if ordered today
Estimated Ship Date: Apr 8, 2027 if ordered today
Bare Blocks, Dart Big M Sportsman Series, Cast Iron,10.200 in. Deck Height, 4.560 in,Bore,4-Bolt Main,2-Piece Rear Main Seal, Big Block, Chevy, Each
Part Number: DRT-31223555
Not Yet Reviewed
Estimated Ship Date: Feb 10, 2027 if ordered today
Estimated Ship Date: Feb 10, 2027 if ordered today
Engine Block, Race Series, Aluminum, 4-Bolt Mains, 10.2 Deck, 4.250 in. Dia., Bore, 2-Piece Seal, Chevy, Each
Part Number: DRT-31264355
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2027 if ordered today
Estimated Ship Date: Feb 18, 2027 if ordered today
Bare Blocks, Dart Big M Series, Cast Iron, 10.200 in. Deck Height, 4.560 in. Bore, 4-Bolt Main, 2-Piece Rear Main Seal, Big Block, Chevy, Each
Part Number: DRT-31213554
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2027 if ordered today
Estimated Ship Date: Feb 18, 2027 if ordered today
Bare Blocks, Dart Big M Series, Cast Iron, 10.200 in. Deck Height, 4.250 in. Bore, 4-Bolt Main, 2-Piece Rear Main Seal, Big Block, Chevy, Each
Part Number: DRT-31213355
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2027 if ordered today
Estimated Ship Date: Feb 18, 2027 if ordered today
Bare Blocks, Dart Big M Series, Cast Iron, 10.200 in. Deck Height, 4.250 in. Bore, 4-Bolt Main, 2-Piece Rear Main Seal, Big Block, Chevy, Each
Part Number: DRT-31213354
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2027 if ordered today
Estimated Ship Date: Feb 18, 2027 if ordered today
Need It Sooner? We recommend these similar substitute parts:
BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110333
Not Yet Reviewed
Estimated Ship Date: Dec 18, 2026
Engines, Bare Block, Cast Iron, Merlin IV BBC, 10.200 in. Deck, 4.595 in. Bore, Splayed Billet Caps, 55mm Babbit Cam Bearings and 0.904 Lifter, Each
Part Number: WRL-095112-55
Not Yet Reviewed
Estimated Ship Date: Nov 17, 2026 if ordered today
Estimated Ship Date: Nov 17, 2026 if ordered today
Engines, Bare Block, Cast Iron, Merlin IV BBC, 10.200 in. Deck, 4.495 in. Bore, Splayed Billet Caps, Standard Cam Bearings and Lifter bores, Each
Part Number: WRL-095110
Not Yet Reviewed
Estimated Ship Date: Nov 17, 2026 if ordered today
Estimated Ship Date: Nov 17, 2026 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.600 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Big Block, Each
Part Number: DRT-31264654
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2027 if ordered today
Estimated Ship Date: Feb 18, 2027 if ordered today
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