LQ4 Small Build - Need advice
Thread Starter
Teching In
Joined: Dec 2015
Posts: 12
Likes: 0
LQ4 Small Build - Need advice Hey guys, first time on the forum and very new to the LS world. Just picked up my engine for my 79 Z28 swap. Engine come out of a 2004 GMC Denali Yukon, 73,000 miles. Think i got a good deal at 1,200$. Intake, accessories and all. Anyway onto the meat of this conversation. Main goal is 500 rwhp, not really on a super tight budget but i would like to see what i can get out of it without disassembling it completely. Engine has the stock 317 heads.
Plans:
-Aeromotive stealth pump/fuel setup
-Holley EFI
-Holley high ram intake? (not sure, heard good things on it)
-Natural aspiration, nothing forced right now.
**dependable**
-No emissions
-No major racing
Main question is, what do you guys think i can get out of this engine with a intake, cam, tune, headers, and maybe a head swap. And will the stock interals be alright? From what i read they would be perfectly fine. This isn't going to be a drag machine, just a toy to drive to to shows, town, and beat on every now and again.
<a href="http://s1078.photobucket.com/user/Just_Samples/media/DSC_0020_zps86x2ueuu.jpg.html" target="_blank"><img src="http://i1078.photobucket.com/albums/w494/Just_Samples/DSC_0020_zps86x2ueuu.jpg" border="0" alt=" photo DSC_0020_zps86x2ueuu.jpg"/></a>
Plans:
-Aeromotive stealth pump/fuel setup
-Holley EFI
-Holley high ram intake? (not sure, heard good things on it)
-Natural aspiration, nothing forced right now.
**dependable**
-No emissions
-No major racing
Main question is, what do you guys think i can get out of this engine with a intake, cam, tune, headers, and maybe a head swap. And will the stock interals be alright? From what i read they would be perfectly fine. This isn't going to be a drag machine, just a toy to drive to to shows, town, and beat on every now and again.
<a href="http://s1078.photobucket.com/user/Just_Samples/media/DSC_0020_zps86x2ueuu.jpg.html" target="_blank"><img src="http://i1078.photobucket.com/albums/w494/Just_Samples/DSC_0020_zps86x2ueuu.jpg" border="0" alt=" photo DSC_0020_zps86x2ueuu.jpg"/></a>
Last edited by Just Samples; Dec 6, 2015 at 06:23 PM.
Thread Starter
Teching In
Joined: Dec 2015
Posts: 12
Likes: 0
I understand. What exactly do you mean by healthy? I was thinking Holley high ram, l92 heads, and a cam maybe from lethal racing, really enjoy their night fury cam. Like i said, i'm brand new to this, please advise away. I just see people like Sloppy Mechanics on youtube turbo a stock bottom 5.3 and get away with it making like 500-600 for a while.
if you want to make that n/a your going to need nice aftermarket heads such as and bump the compression, or very nicely done factory heads. As for a cam that varies Id contact tick for a cam.
I have a built 370 im hoping to make around the 500 mark on motor without spray and I have mamo motorsports 235s and a custom grind nitrous cam, edlebrock vic jr and 4150 tb
I have a built 370 im hoping to make around the 500 mark on motor without spray and I have mamo motorsports 235s and a custom grind nitrous cam, edlebrock vic jr and 4150 tb
500 NA on a 6.0 takes a lot of attention to detail, and every little bit counts. You're going to want to work very closely with someone like Tony Mamo or Brian Tooley. And you'll want to follow their advice to the letter. If they tell you to check wipe patterns 17 different times with different shims, you do it.
You'll want aftermarket heads, a well chosen cam, short travel lifters, lightened valves, very well designed valve train to support 7K rpm, 11/32 pushrods, fast 102 intake and 102mm throttle, 1-7/8 or 2" long tube headers, X-pipe exhaust.
And if you just haphazardly grab parts, you're not guaranteed the number you're chasing.
If you're willing to spend the money it is well worth it. I love driving a powerful HCI motor. Best advice I can give is to decide who you're going to work with and work closely with them. I highly recommend Tony Mamo
You'll want aftermarket heads, a well chosen cam, short travel lifters, lightened valves, very well designed valve train to support 7K rpm, 11/32 pushrods, fast 102 intake and 102mm throttle, 1-7/8 or 2" long tube headers, X-pipe exhaust.
And if you just haphazardly grab parts, you're not guaranteed the number you're chasing.
If you're willing to spend the money it is well worth it. I love driving a powerful HCI motor. Best advice I can give is to decide who you're going to work with and work closely with them. I highly recommend Tony Mamo
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0
Brett Foote
PatG spec'd a cam for an LS2 Corvette that made 500whp with the stock heads. I'd say with that Hi-Ram, you shouldn't have any problem, but I would look at trading the 317 heads for the 243/799 heads with the smaller chambers to bump the compression up.
Thread Starter
Teching In
Joined: Dec 2015
Posts: 12
Likes: 0
What's your recommendation for what i'm doing?
I think you're on the right track. The bottom end should be fine since it's an 04. The rod bolts are better as are the rods themselves. Even though the 317's have plenty of potential, I would rather have the 243/799 heads for the smaller combustion chambers.
I think you'll like the Hi-Ram too. It'll help make more higher RPM power and it's definitely a head turner at a car show. I just got mine in today but I'm using two 4150 EFI throttle bodies instead of a single 90/102mm.
I think you'll like the Hi-Ram too. It'll help make more higher RPM power and it's definitely a head turner at a car show. I just got mine in today but I'm using two 4150 EFI throttle bodies instead of a single 90/102mm.
Thread Starter
Teching In
Joined: Dec 2015
Posts: 12
Likes: 0
I think you're on the right track. The bottom end should be fine since it's an 04. The rod bolts are better as are the rods themselves. Even though the 317's have plenty of potential, I would rather have the 243/799 heads for the smaller combustion chambers.
I think you'll like the Hi-Ram too. It'll help make more higher RPM power and it's definitely a head turner at a car show. I just got mine in today but I'm using two 4150 EFI throttle bodies instead of a single 90/102mm.
I think you'll like the Hi-Ram too. It'll help make more higher RPM power and it's definitely a head turner at a car show. I just got mine in today but I'm using two 4150 EFI throttle bodies instead of a single 90/102mm.
Does this model motor have anything i need to get rid of? like egr or something? The newer ones had the displacement on demand (DOD) right?
I don't think so, I'm not familiar enough with all the different models, but looking at the picture it doesn't look like it has VVT. Once you get the intake off, the valley cover will tell you if it has DOD/AFM because it will look like a graph rather than a smooth plate.
Lifters are up for debate, most people just replace them with GM standard replacements and those can handle a lot.
Thread Starter
Teching In
Joined: Dec 2015
Posts: 12
Likes: 0