Dart 31711213 - Race Series Chevy Small Block Aluminum Block - 4.125 in. Bore, 9.025 in. Deck

Dart 31711213 - Race Series Chevy Small Block Aluminum Block - 4.125 in. Bore, 9.025 in. Deck

Dart Race Series Aluminum Small Block Chevy Blocks

We created all new tooling and added superior new features like central oil cross-overs and extended cylinder barrels. Deck heights from 8.850 in. to 9.500 in. are available. Dart's Aluminum small block is light, strong, and affordable.

• Deck heights from 8.850 to 9.500 provide maximum versatility. Cylinder barreLS2 are extended at the bottom for better piston support with long strokes
• Raised camshaft (+.391) provides more clearance for stroker cranks and eliminates need for fragile small base circle cams. Option for .434 raised cam
• Siamesed 4.000 or 4.125 cylinders can be safely bored to 4.165. Ductile Iron sleeves and extra thick walLS2 produce excellent ring seal
• Requires use of remote oil filter. No provision for block mounted filters
• Relocated oil pan raiLS2 are spread .400 per side (.800 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
• Parts kit included (PN 32000012 )