Dart 31181111 Cast Iron Little M Engine Block Chevy Small Block 350 Mains, 4.000 Bore, Billet steel Caps
An industry staple, the Dart Machinery Little M2 block line has been updated and broadened to include new features and more combinations of high-performance options perfect for your next build
True race block which will work with most standard components. Provisions for wet or dry sump oiling systems. Great for power adders and maximum effort engines.
The Dart Little M is designed from the ground up as a true racing engine block which can be used with standard off the shelf small block components.
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.
• Uses standard small block parts, including cam, timing chain, oil pump, oil pan, oil filter, motor mounts, mechanical fuel pump, and clutch linkage.
• 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.
• Parts kit included (PN 32000001).
Specifications:
Material: Superior iron alloy
Bore: 4.000″ or 4.125″ (unfinished)
Bore/Stroke: 4.185″ x 4.000″ (max recommended)
Cam Bearing Bore ID: SBC 2.00″
Cam Bearings: Specially-coated & grooved with three oil holes
