MTC_75vette

As the title says what heads out there will give best results with my Trex cam with full bolt ons.

Camaroking1996

Budget and goals?

MTC_75vette

I am on a budget, I was looking at AI HCR 219s, PRC ls6 st 1, Trick Flow As casts and I am waiting to see the PRC 220 As casts release.

Camaroking1996

Stage 1 prc heads are a waste of money. Are you still on stock 241 heads? Is so pick up some used 243's and have them fully ported. Best bang for the buck.

MTC_75vette

Yeah I have been running the stock 241s for the past 2 years. Time to upgrade, just want to make the best decision.

dkcoleman01

Bang for the buck stock 243's/799's if your on a strict budget. You can also get a set of 243's/799's and send them to AI, TSP, or even TEA

mikh338

iTrader: (16)

im running the trex as well and cannot wait to do heads myself. what is your ballpark range for what you want to spend? i have really been looking for what heads to go with for this cam as well

MTC_75vette

I am looking to spend between 1000-1800. AI really impressed me when I spoke with Phil but he wanted me to change my cam and also port my manifold. I really dont want to change the cam at this point and would like to find the best heads for the Trex cam.

mikh338

iTrader: (16)

yeah the trex cam is plain nasty, no way am i changing it either.

kenp

iTrader: (9)

For $1700 you can get some brand spanking new TFS 220 as cast delivered to your door.

BuckaroooZ28

iTrader: (1)

for your budget look at as cast prcs 215 or 227, you will have a flatter valve angle so your sh*t dont hit and still have a 62cc!

BennyB

iTrader: (12)

I would wait and see if the prc 220 as cast heads do what Texas speed is claiming they will do and go from there. For me it's either going to be them or some 243s ported by ai

MTC_75vette

Yeah I have been waiting for Texas Speed to release these heads for months now I dont understand the big hold up!

mikh338

iTrader: (16)

so i have been hearing such good things on the l92\ls3 heads. texas speed has the ported l92\ls3 heads that produce 351cfm at .600lift which is perfect for the Trex cam. these heads are supposed to produce 25whp over stock ls3 heads. here is the link check them out. i think this is what i may be going to!!

http://www.texas-speed.com/p-1179-pr...ted-heads.aspx

mikh338

iTrader: (16)

i always forget about the cathedral vs. rectangular heads. what manifold will you be running?

desertLS1

iTrader: (8)

if your even considering the TFS as cast, thats a good 1600 bux plus rockers...for that much, id get the PRC LS6 Stage 2.5 heads. retain stock rockers and gain a legit amount of power.

Demonicbird00

iTrader: (17)

im going w/ the TFS 215s milled to 57cc i bought them used from my buddy, you can find a nice set for your price range

-brandon

BarneyMobile

iTrader: (4)

To be honest, and I bet most will disagree with me here but, the Trex will work best with "dare I say it - Stock heads" That cam was designed around stock heads. I'm willing to bet that big heads with that cam on a 346 will very low torque numbers! A set of stock 243's with valve springs is as much as I would go with a Trex in a stock cube 346. If you had had more cubes, then by all means go with bigger heads.

Another thing you may want to look at if you don't already have them is rod bolts. The Trex cam is going to need more rpm's to make power which will really test the stock rod bolts!

MTC_75vette

Yes my friend told me I should order rod bolts asap also as I am shifting at 7000 rpm I am only playing with fire. I am currently using the victor jr cathedral port manifold so I dont plan on changing to an ls3 head. I am very torn right now between having my 241s and manifold ported by AI or buying the trick flow 220 as casts or Texas speeds 220 as casts if they ever are released. Also in the mix is the Patriot Predator heads I read an article that tested them with a futral cam that is similar to the trex that put down impressive numbers. I just want to chose the head that will gain me the most power of these listed as they are in my budget.

http://www.gmhightechperformance.com...t/viewall.html

Jrp1978

iTrader: (10)

I ran that cam and tsp stage 2.5 ls6 heads and made 457 hp