23 degree head for the generation one small block chevy's? AFR seems to be getting top billing with this head at current. With out going to the sbc2.2 canted valve(junior rat) head this would seem the hot ticket for 400 cu in and up engines. My 400 sbc block showed no core shift & is bored sixty over & gettin thin here boys! A set of Venolia slugs & 5.7" H beam rods spinning off a ten ten cross drilled factory crank should be a safe bet to 7200 rpm max. Definitely going mechanical roller mounted in a two bolt block align bored with steel splayed four bolt caps. I can get other aluminum heads at 190cc with 2.05 intakes in the 800.00$ range off of ebay. The AFR 227cc heads are at 2000.00$ plus change. CC's mean H/P on the top end for sure. Any one out there that has tried AFR's 227cc heads? Just curious as 1200.00 $kins plus is a lot of dough for 37 cc's & a 2.10 intake valve. Just looking for feed back regarding performance gain here on the 227cc AFR heads
just make sure your exhaust ports match up to the headers, if you get turbulence inside the exhaust your expected horspower gains will become ineffective. You can also use a different spring rate for the higher RPM's with the mechanical lifters so the valves don't "float"
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