Filters

Engine Block Style
- Aftermarket (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- OEM (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Cylinder Bore Diameter
- 4.000 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 4.125 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Maximum Bore Diameter (in.)
- 4.165 (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 4.185 (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Freeze Plugs Included
- No (2)
- Yes (2)

Bare Engine Blocks

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!