Jadedbird

iTrader: (27)

So i have finally decided a path.

2006 GTO Ls2 short block with 5364 heads
Ls7 lifters
Ls3 intake
Cam kit with titanium retainers
Melling 295 high pressure oik pump
Ls3 offset rockers with trunion upgrade

Im aiming for 450/450 or better with streetable 20mpg
Now its going in a 1999 trans am
So ill be ordering a racetronix cam and knock sensor extensions ($25 and $30)
Ill also be getting a map sensor extension ($35)
Ev6 to ev1 injector adapters ($20)

Will i be fine with the 2006 gto front cover/rear cover?
Will that motor be a 3 bolt cam and 24x reluctor?
Will i need the ls3 or ls2 valley cover for my ls3 intake
What head bolts will i need? will i be fine with stock head bolts and stock main bolts?

I noticed the DOD delete kit would a tually be a better value if i can use the cam swap kit and the pcv parts.

low2001gmc

iTrader: (148)

congrats on build. rectangular port heads are way to go. i love my lq9/ls3 build.

front and rear covers should be fine as well as 3 bolt, 24 reluctor. unsure on valley cover. stock head bolts and mains bolts will be fine but connecting rod bolts upgrade is always definitely better.

not even my build and i am excited for you lol....

Jadedbird

iTrader: (27)

Thanks! Youve posted alot of great info throughout the threads and influenced alot of my decisions.
I think i may hold off on the main studs, and purchase the arp head bolts. I figure since im not going boost, the head bolts should be plenty, and as for the main studs.. Maybe something ill do in the future.

SinisterWS6

I'm pretty sure you'll want to use a LS2 valley cover, since its a LS2 block.

Bolt/stud upgrades are always a better route to go for the money. OEM TTY bolts, always have to be discarded after 1 time use, and aren't cheap as it is lol.

If your having the shortblock gone through at a machine shop, now would be the time to upgrade main studs, if not, I wouldn't worry about it too much til later. Good investment irregardless though.

Why would you need a DOD delete? Just curious.

You should be able to get 450 without too much of a hassle.

low2001gmc

iTrader: (148)

thanx for the compliment. ive researched quite a bit learning from others and experimented, and dont mind sharing what ive learned with others. i have some some info on pics i can email to you if you wish to pm me your email addy.

youll have a great investment to not get aftermarket connecting rod studs as a lil insurance. the mains and head studs with stock youll be fine. if you decide to upgrade head studs later, they will be easier to do since heads are on top as opposed to connecting rods under. some to think about....

Jadedbird

iTrader: (27)

Well i was just wondering if the intake would fot with that ls2 valley. Thats why i did not know if i needed a ls3 valley or not.
And i dont need a DOD, it just comes with ls7 lifter, ls3 head gaskets, cam seap kit, head bolts of my choice, ls3 valley cover, ls2 trays, and ls2 dampener.
I just figured if i needed most that stuff then it wouldve been a better value. But if i dont need the valley cover, then it wouldnt be woth it haha.

I also found this:


A few more LS2's to add to the list:
2005 Corvette LS2 has 24x
2006 Corvette LS2 has 58x
2006 CTSV LS2 has 58x
2006 Trailblazer SS LS2 has 24x
2007-2009 Trailblazer SS LS2 has 58x
2005-2006 SSR has LS2 24x
2005-2006 GTO has 24x

So it looks like im ok on the reluctor.
How much do you think itll cost for a shop to check everything an do a head/cam swap?
Its supposed to have a new crank and bearing in it.

Jadedbird

iTrader: (27)

Im just wondering if the valve covers will need massaging and what head gaskets to get.
I figure 11:1 would be a decent compression? Since stock ls2 is 10.7:1

SinisterWS6

The intake should fit the LS2 valley cover.

As far as lifters and trays go, personally, I would try to get away from the "trays". Not that you asked an opinion on that, just a preference.

Check everything as in..? Go through the entire shortblock and do the swap? If the engines out of the car, it will be cheaper for any work. Shop rates can be outrageously different from place to place, you would have to ask the guys you want to do the work for you. Sorry can't really help you there.

SinisterWS6

You shouldn't have any issues with 11:1. LS3 valve covers shouldn't need any work to fit on over the LS3 rockers.

Have you had any thoughts on cam selection? Will help with head gasket thickness. I'm sure if you shoot Martin@Tick a PM he could help you out.

Jadedbird

iTrader: (27)

Yeah i talked to him and he has a handful of cams sitting on the shelf ready for my choosing.

Tell me, stock ls2 with bolt ons should put 410rwhp thru a t56 right? Add the L92/ls3/ly6 top end adds about 40rwhp. Could i expect 450 rwhp out of that stock ls2 short block?

And whats wrong with the ls7 lifters and ls2 lifter trays? I thought if you drilled holes in the bottom, they are fine

Jadedbird

iTrader: (27)

So i assume ls2 pedestals and bolts are different from ls3 pedestals and bolts

SinisterWS6

I just don't like the idea of the lifter trays VS a link bar style lifter. The trays feel cheap, and honestly just freak me out if you consider the action of a lifter LOL.

And yes the pedastals on the LS3 top end are offset compared to a LS1/2 style rocker system.

What your car will actually dyno depends on overall drivetrain loss, the dyno your using, temp/humidity/etc can alter readings. With a good heads/cam set up, I don't see why you couldn't reach 440-450 without too much of a hiccup through a T56. Considering there's 347's with 210-215cc heads and shelf cams making 430+. Haha.

Jadedbird

iTrader: (27)

yeah. its amazing thats its just plastic, but it should be fine.
ugg local shop charges $120 to install trunion upgrades onto rockers

Sales@Tick

iTrader: (3)

We have a customer with a flat top piston 6.0, L92 heads, LY6 truck intake and a 230/238 112+2 camshaft that makes 465/430 through a 6 speed and a 8.8 rear end. I think 450rwhp is totally doable as I told you the other day Jaded!

Same customer also just went 6.80's@103 in the 1/8th with a 1.50 60'. 3100-3200lbs. race weight.

Jadedbird

iTrader: (27)

So do GM 85 MAFs have the IAT sensors built in?
Also im wondering if i should try some different gear rationa.
It sees alot of street, hardly any drag strip (maybe a few passes in the future) and will see some road course/autox. I have a 6 speed so people say 4.10s. But i run 80 on the interstate for hours at a time some times, so i was wondering if 373s or 390s would be moee benefical?
I still have the stock 10 bolt but like i said, i dont plan on taking it tothe strip until my pocket gets refilled

Sales@Tick

iTrader: (3)

I would do 3.90's personally from Motive. That is the only 10 bolt gear set still made in Italy by Motive which is where they used to make all of their r&p's. They are made in Malaysia, Taiwan, China or the likes nowadays or Mexico.

anthony.fatica

iTrader: (10)

I did mine in my living room on my couch in about a half hour. Got a press from HF for about $40, out it on my ottoman/coffee table and went to town.


BTW I'm in the middle of the same build you are pretty much. Just got done flycutting, checking PR length, and checking PTV clearance.

anthony.fatica

iTrader: (10)

http://www.ls2.com/forums/showthread...hreadid=626014

Some useful information on here as well...

Jadedbird

iTrader: (27)

Yeah im talking to a good buddy on here who is running an iron block set up.
From what im seeing it looks like a nice 228/232 and stay under that .600 lift.
Or maybe a 232/236 .600/.600 113, because a Guy made 479/430 on a m6 goat without ported heads/intake

As for the heads. I might ship them down to low2001gmc and have them ported on the exhaust side.

And from the looks of it, 20+mpg and 450/450 should be a cake walk

anthony.fatica

iTrader: (10)

I went with 230/234 .612/.598 114+2...im doing my exhaust ports as well (just taking that bump out and cleaning them up a bit nothing serious as far as porting), slowly but surely. lol doing those on my living room couch as well, the wifeys not too happy about that one but now that the weather is breaking up where i am ill prob do em on my porch