Dart Little M 4.125″ Bore, 9.325″ Deck, 400 Main Small Block Chevy Racing Block 31182225

Dart’s Little M racing block is designed to accept standard off the shelf stock parts. It features a .391″ raised cam location, and works with stock type oil pans. Unlike the Iron Eagle Blocks which require far more custom equipment, the Little M is a true racing block that utilizes standard hardware that fits standard Small Block Chevy Engines.

The Little M is cast from premium high strength Iron and beefed up in all the critical areas. A competition oiling system ensures adequate lubrication to the main bearings at high RPM. Front and rear external oil feed, crossover and restrictor provision simplify plumbing with external pumps.

• 4.125″ Bore
• 9.325″ Deck Height
• 400 Mains – 4 Bolt
• .391 Raised Cam
• 2-Piece Rear Main Seal
• Priority main oiling system feeds main bearings first.
• Siamese cylinder bores with extra thick walls resist cracking and improve ring seal for more power (minimum .275” thick with 4.185” bore).
• Open lifter valley improves oil return to pan.
• Enlarged lifter bosses accommodate offset and oversize lifters.
• Blind head bolt holes don’t go through to water jacket.
• Billet steel 4-bolt main bearing caps on all 5 mains.
• Front & rear external oil feed, crossover and restrictor provision to simplify use of external oil pumps.

NOTE: This block has a Flat Rate Fee to a Commercial / Business Location Set, if shipping to a Residential Location, Freight Costs will be higher than indicated in checkout.