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RaceSeries 4.500BS

Race Series SBC 4.500″ BS Aluminum

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Description

Advanced engine builders, maximum competition, unlimited late model, off-road truck. Spread bore space requires special 4.500″ cylinder heads and components.

The Race Series Aluminum block features cylinder bores which have been spread to 4.500” from the standard 4.400” center to center dimension. This allows larger bore diameters while maintaining adequate cylinder wall thickness and gasket sealing surface between bores.

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• Premium alloy: Dart Aluminum blocks are cast from proprietary RMR cast Aluminum alloy for superior strength.

• 4.500” bore spacing allows bore sizes up to 4.250”.

• Standard 17 head bolt pattern or optional 19 bolt pattern available.

• Deck heights of 8.850”, 9.025”, 9.075” and tall deck 9.325” & 9.500” versions allow greater versatility for preferred rod ratio and angle.

• Raised camshaft .391” (4.912” camshaft-to-crankshaft centerlines) Option for .434” raised cam also available.

• Requires use of remote oil filter. No provision for block mounted filters.

• Relocated oil pan rails are spread .400” per side (.800” wider than stock) to increase crank/rod clearance and reduce windage losses.

• 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).

31511352 – SBC Aluminum +.391” 50mm Steel 350 8.850 4.180

31511312 – SBC Aluminum +.391” BBC Steel 350 9.025 4.180

31511313 – SBC Aluminum +.391” 50mm Steel 350 9.025 4.180

31511342 – SBC Aluminum +.391” BBC Steel 350 9.075 4.180

31511322 – SBC Aluminum +.391” BBC Steel 350 9.325 4.180

31511332 – SBC Aluminum +.391” BBC Steel 350 9.500 4.180


31512312 – SBC Aluminum +.391” BBC Steel 400 9.025 4.180

31512313 – SBC Aluminum +.391” 50mm Steel 400 9.025 4.180

31512342 – SBC Aluminum +.391” BBC Steel 400 9.075 4.180

31512322 – SBC Aluminum +.391” BBC Steel 400 9.325 4.180

31512323 – SBC Aluminum +.391” 50mm Steel 400 9.325 4.180

31512332 – SBC Aluminum +.391” BBC Steel 400 9.500 4.180

Aluminum SBC Block Information Packet – B05

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