Features Dart priority main oiling system with provisions for stock oil filter mounting. By utilizing conventional style main caps and oil pans with LS rotating assemblies and related components, Dart has addressed the windage and oil control problems which result from the factory LS engine’s separated crankcase bays. Features: Skirted and non-skirted design options available. Priority main oiling system. Available in deck heights from 9.240in., 9.450in., 9.750in. up to 9.800in.. STD or raised .388in. cam location. Cylinder barrels extended .375in. at the bottom. Extra thick decks ensure reliable head gasket seal. Blind head bolt holes available in 7/16 or 1/2. Scalloped water jackets increase flow around cylinders for better cooling. Clearance for 4.100in. stroke with steel rods. MUST BE clearanced for center counterweighted crankshafts. Splayed outer bolts on middle main bearing caps. LS style motor mounts. Provisions for OE stock roller lifters and cam. Uses stock timing covers and stock rear cover. All OE bolt holes for starter, water pump, etc. Driver or passenger side starter mounts (Not available with skirted version). Parts kit included.

More From This Category

DART BIG M GEN 7 (8.1 LITER), SIAMESE BIG BLOCK For Chevrolet IRON ENGINE BLOCK, 10.236, 4.600, Standard, Ductile

DART BIG M GEN 7 (8.1 LITER), SIAMESE BIG BLOCK For Chevrolet IRON ENGINE BLOCK, 10.236, 4.600, Standard, Ductile

$3,735.36

View
World Engine Block, Cast Iron,Motown II SB Chev Iron Block - 9.025" Deck, 3.995" Bore, Std Lifters, 350 Mains, Billet Caps

World Engine Block, Cast Iron,Motown II SB Chev Iron Block - 9.025" Deck, 3.995" Bore, Std Lifters, 350 Mains, Billet Caps

$6,209.73

View
Dart Engine Block, LS NEXT Chevorlet LS Gen III Aluminum, 4.000 In. Bore, 9.240 In. Deck, Each

Dart Engine Block, LS NEXT Chevorlet LS Gen III Aluminum, 4.000 In. Bore, 9.240 In. Deck, Each

$14,206.27

View
Dart Engine Block, Race Series Chevorlet Small Aluminum, 4.180 In. Bore, 9.325 In. Deck, Each

Dart Engine Block, Race Series Chevorlet Small Aluminum, 4.180 In. Bore, 9.325 In. Deck, Each

$15,136.99

View
DART BIG M PRO IRON BIG BLOCK For Chevrolet ENGINE BLOCK, 10.000, 4.600, Raised .600, Standard, Steel

DART BIG M PRO IRON BIG BLOCK For Chevrolet ENGINE BLOCK, 10.000, 4.600, Raised .600, Standard, Steel

$5,964.42

View
World Engine Block, Cast Iron, Motown LS Iron Block - 9.240 Deck, 3.995" Bore, +.134" Raised Cam, 55mm Cam, .904" Lifters, 350 Mains, Nodular Caps

World Engine Block, Cast Iron, Motown LS Iron Block - 9.240 Deck, 3.995" Bore, +.134" Raised Cam, 55mm Cam, .904" Lifters, 350 Mains, Nodular Caps

$5,448.47

View