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The same great features of the Dart Big M except it features 4- bolt splayed ductile iron main caps.Plus Freight

* Actual freight charges may vary depending on delivery location. Residential delivery and lift gate service available for an additional fee as determined by UPS. Doug Herbert Performance strongly recommends delivery to a commercial address or pick up from your local UPS terminal. A DHP shipping specialist will contact you with details on your shipment.

Main Journal Type: OEM

Engine Block Style: Stock/OEM standard deck

Deck Height (in): 9.800 in.

Cylinder Bore as Shipped: 4.490 in.

Cylinder Bore Diameter: 4.500 in.

Engine Block Material: Cast iron

Engine Block Weight (lbs): 260 lbs.

Main Bolt Style: 4-bolt

Main Caps Included: Yes

Main Cap Material: Ductile iron

Main Cap Fasteners Included: Yes

Main Bearings Included: No

Rear Main Seal Style: 2-piece

Finished Cylinder Bores: No

Raised Cam Location: No

Cam Bearings Included: No

Freeze Plugs Included: No

Quantity: Sold individually.

Notes: Block bores are .10 undersized to allow for piston set up.