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OK so I am going to build a 505 rb motor. Really can't afford an aftermarket block. So I figured it's either aluminum mains or a girdle. This is going in a street/strip car. How streetable are aluminum mains? Also who's should I use? BCR's aren't available anymore. Thanks Jamey



Your only option now is Best Machine Koffels or 440 source.
Support the Moparts guys and buy from Best Machine for now.

No problems running them on the street. Lots of my customers do at least 20%

Greg

www.bcrproducts.com