LS1IMPULSE

iTrader: (42)

I am looking at getting the T-rex out for a more "streetable" (i know this is an opinion) cam/heads setup. I plan on trading the 9" for a 12 bolt with 4.10's and other than that these are my other current performance mods:

Engine:
-Thunder Racing T-Rex cam (243/249 @ .050, .608"/.613" lift, 110 LSA) **WANT THIS OUT*
-Patriot Gold dual spring kit
-Thunder Racing heat treated chrome-moly pushrods
-Rollmaster heat treated adjustable double roller timing set
-Stealth airlid w/ K&N filter
-Jantzer ported and black powdercoated throttle body
-LS6 intake manifold
-March underdrive pulley
-ARP Pro Series rod bolts
-Ported LS6 oil pump

Exhaust:
-Edelbrock Victor Series drag headers: 1 3/4" to 1 7/8" stepped long tubes with merge collectors and off-road y-pipe
-Hooker cat-back

My Goals is to make around 450 HP streetable HP to the wheels with TQ number that are not to far below 450 aswell. I researched cams and have a fair understanding but I dont know how certain heads/cams with match up. I want the price to be as low as possible (who doesn't) but I don't want to comprimise quailty.

Any sugestions on what heads/cam to get and all were to buy would be great

Thanks, Matt

RoastEmSS

its going to be harsd to get the torque as high as the HP on stock cubes...mods and numbers in sig

Nittany_marine

iTrader: (7)

I went with the G5X3, and a set of AFR 205's milled down to 59cc's/ I wouldnt even look back.

LS1IMPULSE

iTrader: (42)

I can get help with the cam from thunder racing but im really wanting to know about the heads because i am clueless. THe AFR's are to much, i dunno about the others TFS/TEA , DART etc. . .or should i just get the stock one ported/polished???

ShevrolayZ28

iTrader: (4)

That must be sick! But you had to fly-cut your pistons, right?

I'm almost done installing the same heads but mine are milled to 62cc. I'm using a 0.040" HG, and an XER 224/228 114+1 cam. (no fly-cutting)

There's nothing original about my combo but it should work well and do what I want it to; good street manners and good power.

Sigforty

Dart 205s with a Futral F14 cam and the usual bolt-ons made over 450 for my Z06 and had over 420 torque as well.

LS1IMPULSE

iTrader: (42)

ANyone ever heard of Absolute speed? I foun these for sale

Absolute Speed Stage 2.5 5.3 Heads. Compression is right around 11:1, set up with dual comp 977 springs.Valves are 2.04-1.57

LIFT-IN-EX
200-146-114
300-206-161
400-257-201
450-277-212
500-291-218
550-305-221
600-312-226

He didn't have the chamber cc's on the listing but i emailed him to ask, He said they have 6K on them and he has been master se certified for 13 years and inspected them himself?

Would these be a good purchase for a street car, if so what do you think they are worth?

N4cer

iTrader: (11)

You might want to check those AS heads. I had mine cc'd and they were hogged out to normal compression 66cc chambers. But they run great.