We created all new tooling and added superior new features like central oil cross-overs and extended cylinder barrels. Deck heights from 8.850in. to 9.500in. are available. Dart’sAluminum small block is light, strong, and affordable. Features: Deck heights from 8.850in. to 9.500in. provide maximum versatility. Cylinder barrels are extended at the bottom for better piston support with long strokes. Raised camshaft (+.391in.) provides more clearance for stroker cranks and eliminates need for fragile small base circle cams. Option for .434in. raised cam. Siamesed 4.000in. or 4.125in. cylinders can be safely bored to 4.165in.. Ductile Iron sleeves and extra thick walls produce excellent ring seal. Requires use of remote oil filter. No provision for block mounted filters. Relocated oil pan rails are spread .400in. per side (.800in. wider than stock). Oil pan bolt holes are relocated in line with main caps. Big block camshaft bearings allow the use of cams with larger base circle diameter to improve strength and reduce twisting with cam driven pumps. Rear external oil inlets, with crossovers and restrictor provisions located centrally in the valley to simplify plumbing with external pump.

More From This Category

Dart Engine Block, Big M, Aluminium, 4-Bolt Mains, 2-Piece Seal, BBC 9.800, Standard, 4.500 ductile, Each

Dart Engine Block, Big M, Aluminium, 4-Bolt Mains, 2-Piece Seal, BBC 9.800, Standard, 4.500 ductile, Each

$11,618.88

View
Dart Engine Block, Big M Chevorlet Big Iron, 4.600 In. Bore, 9.800 In. Deck, Each

Dart Engine Block, Big M Chevorlet Big Iron, 4.600 In. Bore, 9.800 In. Deck, Each

$8,095.93

View
Dart Engine Block, Big M2 Pro Chevorlet Big Iron, 4.560 In. Bore, 10.400 In. Deck, Each

Dart Engine Block, Big M2 Pro Chevorlet Big Iron, 4.560 In. Bore, 10.400 In. Deck, Each

$8,662.63

View
Dart Engine Block, Race Series Chevorlet Small Aluminum, 4.125 In. Bore, 9.025 In. Deck, Each

Dart Engine Block, Race Series Chevorlet Small Aluminum, 4.125 In. Bore, 9.025 In. Deck, Each

$15,136.99

View
Dart Engine Block, Big M Chevorlet Big Iron, 4.600 In. Bore, 10.200 In. Deck, Each

Dart Engine Block, Big M Chevorlet Big Iron, 4.600 In. Bore, 10.200 In. Deck, Each

$7,200.00

View