New and improved through a state-of-the-art foundry and new tooling, the "Big M2" is engineered to be the most durable and easiest to build big block Chevy currently offered. Cast from high-strength iron, block may be used with standard off the shelf components, and features a competition oiling system, extra-thick cylinder walls and decks, and choice of ductile iron or billet steel main caps. Choose from standard (9.800") or tall deck (10.200") versions in 4.250", 4.500", or 4.600" bore sizes.
- Engine Block Material:
- Cast iron
- Engine Block Style:
- Aftermarket/OEM tall deck
- Deck Height:
- 10.200 in.
- Cylinder Bore Diameter:
- 4.500 in.
- Maximum Bore Diameter:
- 4.625 in.
- Cylinder Bore as Shipped:
- 4.490 in.
- Finished Cylinder Bores:
- No
- Maximum Stroke:
- 4.750 in.
- Main Caps Included:
- Yes
- Main Cap Material:
- Billet Steel
- Main Bolt Style:
- 4-bolt
- Main Journal Type:
- 454 mains
- Rear Main Seal Style:
- 2-piece
- Main Cap Fasteners Included:
- Yes
- Main Bearings Included:
- No
- Engine Block Weight (lbs.):
- 280 lbs.
- Raised Cam Location:
- No
- Cam Bearings Included:
- No
- Freeze Plugs Included:
- Yes
- Finish:
- Natural
- Quantity:
- Sold individually.
- Notes:
- Block bores are .10 undersized to allow for piston set up.
- Make:
- Chevrolet
- Engine Family:
- Chevy big block Mark IV
