Quote:
Originally Posted by maxum_101
block is a dart alum piece 4 bolt mains afr heads cnc ported, now what are the pros and cons of an alum block as to a iron dart block with the afr heads?
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on a day-to-day basis... you'll need to take time to warm it up properly (before you dip into that deep well of power).
Pros: weight savings, coolness factor
Cons: cost, slightly more attention to maintenance and fastener torquing/sequencing is required
I was nervous about the aluminum block as well... but love mine. As I looked into it, I found that the Dart aluminum block is quite stout... capable of going well beyond 427 cubes. Mine's running AFR-225s & made 612 hp/615 tq on the engine dyno... the lighter engine brought the vehicle weight in at 2240 lbs., so it's a screamer... winds up fast.