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31131211LT - Dart Little M Block


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Part #: 31131211LT
Notes: Little M Pro Chevy Small Block
350 Mains
MSRP: $4,189.13
Your Price: $3,675.17
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Specs

Cyl Bore 4.125in
Deck 9.025in

This Item Also Available In

Part Number Price Notes & Specs
31131111LT $3,675.17 Notes Little M Pro Chevy Small Block
350 Mains
Cyl Bore 4in
Deck 9.025in
31131213 $2,972.19 Notes Little M Pro Chevy Small Block
350 Mains
Cyl Bore 4.125in
Deck 9.025in
31132111 $2,575.75 Notes Little M Small Block
400 Mains
Cyl Bore 4in
Deck 9.025in
31132211LT $3,675.17 Notes Little M Pro Chevy Small Block
400 Mains
Cyl Bore 4.125in
Deck 9.025in
31152111 $2,218.77 Notes Little M Sportsman Small Block
400 Mains
Cyl Bore 4in
Deck 9.025in
31131113 $2,972.19 Notes Little M Pro Chevy Small Block
350 Mains
Cyl Bore 4in
Deck 9.025in
31132211 $2,676.90 Notes Little M Small Block
400 Mains
Cyl Bore 4.125in
Deck 9.025in
31132213 $2,972.19 Notes Little M Pro Chevy Small Block
400 Mains
Cyl Bore 4.125in
Deck 9.025in
31151211 $2,218.77 Notes Little M Sportsman Small Block
350 Mains
Cyl Bore 4.125in
Deck 9.025in
31152211 $2,218.77 Notes Little M Sportsman Small Block
400 Mains
Cyl Bore 4.125in
Deck 9.025in
31131111 $2,590.92 Notes Little M Small Block
350 Mains
Cyl Bore 4in
Deck 9.025in
31131211 $2,590.92 Notes Little M Small Block
350 Mains
Cyl Bore 4.125in
Deck 9.025in
31151111 $2,218.77 Notes Little M Sportsman Small Block
350 Mains
Cyl Bore 4in
Deck 9.025in

All Fitments

UNKNOWN
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
0 - 0 ALL ALL ALL ALL ALL ALL

Product Description

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. You can select 4.000” or 4.125” cylinder bores, and 350 or 400 main bearings with steel 4 bolt main caps. Front and rear external oil feed, crossover and restrictor provision simplify plumbing with external pumps.

With a standard deck height, extra thick siamese cylinder walls and a competition oiling system, the Little M is the perfect starting point for a powerful and reliable engine for the street or the race track.

Features:

  • Extra thick cylinder walls resist cracking and improve ring seal for more power.
  • Scalloped outer water jacket walls improve coolant flow around the cylinder barrels to equalize temperatures.
  • Priority main oiling system directs oil to the main bearings first for more dependable lubrication.
  • Blind tapped head bolt holes prevent water leaks.
  • Extra thick decks ensure reliable head gasket seal.
  • Standard small block deck height allows use of off the shelf parts.
  • Splayed outer bolts on middle main bearing caps prevent cracks.
  • Open lifter valley improves return to oil pan.
  • Enlarged lifter bosses accommodate offset and oversize lifters.
  • 4 bolt billet steel main caps have splayed outer bolts for extra strength.
  • Front and rear external oil inlets, crossovers and restrictor provisions to simplify plumbing with external pump.
  • Block includes special coated cam bearings, freeze plugs and dowels.

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