Generation IV Internal Engine - AFR 225cc vs Dart 250cc heads
07-26-2012, 10:00 PM
I have a 402 short block with callies crank/rods and -2cc Diamond pistons. I need some advise on which heads to use. I currently have both AFR 225cc and Dart Pro 1 250cc heads. They both have 2.08in/1.60ex valves with PAC 1521 springs. The motor will be setup with a large direct port of nitrous. I just need some help choosing the correct heads for this setup. Thanks in advance.
07-27-2012, 11:50 AM
I am betting most people will say AFR hands down.
07-27-2012, 08:25 PM
That's what I was thinking but I wanted to get a second opinion since it's a 225cc vs 250cc.
KRAZY K 2000 TA
07-28-2012, 09:03 AM
07-28-2012, 02:17 PM
With nitrous bigger the CC runner the better.
If it were N/A I would go with the AFR's as they are renowned for their mid lift and low lift numbers which will really help propel a N/A car.
With nitrous while low and mid lift is still important it isn't as big of a "break the deal" type thing.
The Dart 250's is what I would use.
07-28-2012, 03:53 PM
/\/\/\/\ thanks for the feedback.
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