Filters
Whether you’re building a new engine or recovering from an under-the-hood incident you’d rather soon forget, explore our large selection of aftermarket bare...
Whether you’re building a new engine or recovering from an under-the-hood incident you’d rather soon forget, explore our large selection of aftermarket bare engine blocks to complete your new power plant project. We have V6, V8, and L4 engine block types, and bare blocks of various materials including aluminum, billet aluminum, steel, cast iron, and ductile iron. Find the perfect foundation for your Chevy, Ford, or Mopar build-up, including Chevy 350 and 454, Ford 302 and 351w, Hemi, Corvette, LS, and LSX engines. Explore Summit Racing’s vast selection today!
Whether you’re building a new engine or recovering from an under-the-hood incident you’d rather soon forget, explore our large selection of aftermarket bare engine blocks to complete your new power plant project. We have V6, V8, and L4 engine block types, and bare blocks of various materials including aluminum, billet aluminum, steel, cast iron, and ductile iron. Find the perfect foundation for your Chevy, Ford, or Mopar build-up, including Chevy 350 and 454, Ford 302 and 351w, Hemi, Corvette, LS, and LSX engines. Explore Summit Racing’s vast selection today!
Engine Block, Cast Iron, Billet 4-Bolt Mains, 4.120 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: WRL-084181-904
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
Engine Block, Cast Iron, 4-Bolt Mains, 3.995 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: WRL-084080-904
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
Engine Block, Cast Iron, 4-Bolt Mains, 4.120 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: WRL-084081-904
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
Engine Block, Cast Iron, Billet 4-Bolt Mains, 3.995 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: WRL-084180-904
Not Yet Reviewed
Estimated Ship Date: Aug 28, 2025 if ordered today
Estimated Ship Date: Aug 28, 2025 if ordered today
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
