PRC Stg 2 CNC Ported dart heads and T-rex combo?
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Hey guys, I am just getting back into the ls1 scene again after selling my 98 H/C Z28 last year, and I picked up a nice 99 M6 Z28. I was checking out some possible H/C combos and I was wondering how the PRC Stg 2 CNC ported dart heads would work with Thunder Racing's T-rex cam? I don't want to flycut the pistons, and this would be going on a stock bottom end. I'm not concerned with massive lope and the occasional stalling. The Z28 will have Hooker LT's/ORY, and catback, as well as LS6 intake. Do you guys think this would be a good combination? Oh, I would also upgrade to the dual valvesprings obviously.
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I think you would make pretty good numbers. I say I THINK because that cam might a little big for those heads. I guess you like the bang for the buck the heads provide huh? Maybe you could get them hand ported as well. Maybe someone has done and will chime in.
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Do the stage 2's have the 2.02, 1.57 valves? If so, I dont think they will clear. I'm puttin my motor back in the car after a MS3 and PRC LS6 heads (with stock valve size) + many bolt-ons this weekend. TSP told me that the MS3 wouldn't clear with the bigger valves without fly cutting, and the T Rex has a little more duration than the MS3, so I dont think it will clear.
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I'm not thinking that setup would have good p/v at all. It's already close on the MS3 & the TREX has more duration
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404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
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Originally Posted by freakynipples69
No ASP pulley or ported TB?? Don't forget the oil pump, timing chain, and pushrods.
Yeah, the ASP pulley will go on there, and I will port the throttle body as well. A ported LS6 oil pump, and a double roller timing chain are also in the works. Hardened pushrods are definately going in also. Oh, the heads have 2.02 1.60 valves as well. What heads should I use with the Trex, that are reasonably priced?
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Originally Posted by Jason 98 TA
I'm not thinking that setup would have good p/v at all. It's already close on the MS3 & the TREX has more duration ![Sad](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_sad.gif)
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Originally Posted by 94redz28
Why dont you just have your stock heads ported since the cam is made to work with stock heads and stock bottom end??
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Originally Posted by ZYAL8ER
Yeah, the ASP pulley will go on there, and I will port the throttle body as well. A ported LS6 oil pump, and a double roller timing chain are also in the works. Hardened pushrods are definately going in also. Oh, the heads have 2.02 1.60 valves as well. What heads should I use with the Trex, that are reasonably priced?
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IMO, the T-Rex is a great cam only cam. It has not really shined as a H/C setup. I would look into some other cams that are more "friendly". I believe that the cam utilizes more duration at lower lift, since the stock heads flow better percentage wise there. That would explain why the end result of a T-Rex H/C is rivaled by much smaller cams. Try the MS3, F15, X3, or X4. They should all make atleast as good power and act more tame.
Brandon
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Originally Posted by freakynipples69
Awesome. Just wanted to make sure you didn't forget anything. When I was doing my cam I thought I would have everything I needed, and then find out the next day I forgot something.
Originally Posted by xfactor_pitbulls
IMO, the T-Rex is a great cam only cam. It has not really shined as a H/C setup. I would look into some other cams that are more "friendly". I believe that the cam utilizes more duration at lower lift, since the stock heads flow better percentage wise there. That would explain why the end result of a T-Rex H/C is rivaled by much smaller cams. Try the MS3, F15, X3, or X4. They should all make atleast as good power and act more tame.
Brandon
Brandon