Jon Posted March 1, 2013 Share Posted March 1, 2013 What would match up to the 6 bolt PRC 255 heads on my stick shift LS3 with ported intake, Callaway CAI, and catless Pfadt headers? I'll mill a tad and run 11.0:1 with 65cc chambers. They say at 65cc you still have more piston to valve clearance than stock heads due to the 13* valve angle. Is it possible to get 540-550rwhp and 500rwtq or more with these heads and a slight compression bump? I was looking at the Tick Performance LS3 Polluter cam at 235/246 .62x/.59x 112.5+2. Since the runners are smaller, could I get away with more intake duration? I'm having a hard time deciding between cam/heads or leaving the motor alone and getting a used A&A Vortech V3 T-trim for less than $4k from a local Phoenix guy. I'm currently at 437rwhp and 427rwtq. The blower is from a tech at the shop I use. So they would install it for a really good price. So I would be spending about the same money whichever way I go. Intake flow: .200 157cfm .300 224cfm .400 281cfm .500 329cfm .600 358cfm .650 366cfm .700 369cfm Exhaust flow: .200 117cfm .300 170cfm .400 205cfm .500 225cfm .600 235cfm .650 240cfm .700 243cfm Flowed on a LS3 bore @ 28" if I remember correctly. Link to comment Share on other sites More sharing options...
Drewstein Posted March 1, 2013 Share Posted March 1, 2013 I say blow it and be done with it. You'll make more power and it will be more livable as well. Don't turn this car into your GTO. Link to comment Share on other sites More sharing options...
Jon Posted March 1, 2013 Author Share Posted March 1, 2013 I say blow it and be done with it. You'll make more power and it will be more livable as well. Don't turn this car into your GTO. Yeah, that's what I'm really leaning toward. One of the guys on Yellowbullet said if I did the heads also I would for sure need to upgrade the injectors. That puts heads/cam as more money. I also chatted with ECS a little about their small blower cam and it is very daily driver friendly. He even said their medium cam would be fine in a manual trans car. So when I get bored of the blower I can cam it and still keep it nice driving and good mpg. Link to comment Share on other sites More sharing options...
Jon Posted March 1, 2013 Author Share Posted March 1, 2013 Done. Deal made on T-trim blower kit. Link to comment Share on other sites More sharing options...
Drewstein Posted March 1, 2013 Share Posted March 1, 2013 My D1 and cam only car made 640rwhp through a stock LS1 on 91 lol. Your freak is going to have a lot of potential. Link to comment Share on other sites More sharing options...
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