Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
Availability
Engines, Bare Blocks
Showing In Stock Items. Show All 50 Items.
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: Monday 10/19/2026 if shipped by air
Estimated Ship Date: Monday 10/19/2026 if shipped by air
BUILD IT WITH SUMMIT!
Summit Racing™ SPC Small Block Chevy 400 Engine Block SUM-150201
Engine Block, 400 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 400 Mains, 4.125 in. Unfinished Bore Diameter, 2-Piece Rear Main Seal
Part Number: SUM-150201
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Engine Block, 400 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 350 Mains, 4.125 in. Unfinished Bore Diameter, 2-Piece Rear Main Seal
Part Number: SUM-150202
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Engine Block, Bare, Cast Iron, SHP , 4.125 in. Bore, 4-Bolt Main Style, 2-Piece Rear Main Seal, Nodular Main Caps, Small Block, Chevy, Each
Part Number: DRT-31162211-B
Not Yet Reviewed
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Engine Block, 400 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 350 Mains, 4.125 in. Unfinished Bore Diameter, 1-Piece Rear Main Seal
Part Number: SUM-150204
Not Yet Reviewed
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Engine Block, Ford 302 Cast Iron , 4-Bolt Mains, 8.200 in. Deck, 4.125 in. Bore, 1-Piece Rear Main Seal, Small Block, Each
Part Number: SUM-150207
Not Yet Reviewed
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Engine Block, Cast Iron, 400 Mains, 4.115 in. Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: DRT-31162211
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Engine Block, Ford 351W Cast Iron , 4-Bolt Mains, 9.500 deck, 4.125 in. Bore, 1-Piece Rear Main Seal, Small Block, Each
Part Number: SUM-150205
Not Yet Reviewed
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Estimated Ship Date: Monday 10/19/2026 if shipped by air
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 25, 2026 if ordered today
Estimated Ship Date: Nov 25, 2026 if ordered today
Engine Block, Cast Iron, 4-Bolt Mains, 4.115 in. Diameter Bore, 1-Piece Rear Main Seal, Ford, Small Block, Each
Part Number: WRL-087120
Not Yet Reviewed
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Engine Block, Aluminum, Billet Steel Main Caps, 4.125 Bore, 9.25 in. Deck Height, Drag Pak, Mopar, Each
Part Number: CPI-P5160272AA
Not Yet Reviewed
Estimated Ship Date: Monday 10/19/2026 if shipped by air
Estimated Ship Date: Monday 10/19/2026 if shipped by air
