2005 6.0 (ls2?)
Thread Starter
Registered User
Joined: Sep 2013
Posts: 8
Likes: 0
2005 6.0 (ls2?) So I have a 2005 6.0 vortec out of a 3/4 ton avalanche, in my 1972 c10. Bought the truck set up this way, has a FAST billet fuel rails, and fuel system. Has 4" cold air intake, and full exhaust system, with a tune for 91 octane. Anyways, I want more power I want to know what the best head and cam combo for a street driven truck? I want 450-500hp at the wheels. I was thinking a ported FAST 102mm intake manifold and throttle body, or I've read a ported ls6 is also a good option? Where can I buy these parts and who could tune the truck? I will add probably 100 hp shot of nitrous later down the road. Will the bottom end hold this power?
Thanks, Dylan
Thanks, Dylan
So I have a 2005 6.0 vortec out of a 3/4 ton avalanche, in my 1972 c10. Bought the truck set up this way, has a FAST billet fuel rails, and fuel system. Has 4" cold air intake, and full exhaust system, with a tune for 91 octane. Anyways, I want more power I want to know what the best head and cam combo for a street driven truck? I want 450-500hp at the wheels. I was thinking a ported FAST 102mm intake manifold and throttle body, or I've read a ported ls6 is also a good option? Where can I buy these parts and who could tune the truck? I will add probably 100 hp shot of nitrous later down the road. Will the bottom end hold this power?
Thanks, Dylan
Thanks, Dylan
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
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 Thread Starter
Registered User
Joined: Sep 2013
Posts: 8
Likes: 0
Thanks for the info everyone! I did find out that its the aeromotive fuel rails and fuel system, not FAST. And the motor is out of a 2005 Avalanche. So that means its got a 5.3 correct? I will be able to check the numbers on the heads Friday since that's when I will be with the truck.
I was just told by the previous owner who had a shop do the conversion that it has a Camaro ecu and throttle body if that helps figure out what motor is it in. He claims it is a 6.0 with a throttle cable instead of electronic throttle body.
I was just told by the previous owner who had a shop do the conversion that it has a Camaro ecu and throttle body if that helps figure out what motor is it in. He claims it is a 6.0 with a throttle cable instead of electronic throttle body.
Last edited by 2005LLY; Sep 29, 2013 at 08:59 PM.
Staging Lane
Joined: Mar 2011
Posts: 57
Likes: 0
From: Sioux City, IA
As Per Mitchell, 2005 Avalanche came with 4 engine options. 4.8, 5.3, 6.0, 8.1.
Here is some info where to find and decode the engine ID
https://ls1tech.com/forums/attachmen...entid=419713&s
https://ls1tech.com/forums/attachmen...1&d=1380601268
Here is some info where to find and decode the engine ID
https://ls1tech.com/forums/attachmen...entid=419713&s
https://ls1tech.com/forums/attachmen...1&d=1380601268
As Per Mitchell, 2005 Avalanche came with 4 engine options. 4.8, 5.3, 6.0, 8.1.
Here is some info where to find and decode the engine ID
https://ls1tech.com/forums/attachmen...entid=419713&s
https://ls1tech.com/forums/attachmen...1&d=1380601268
Here is some info where to find and decode the engine ID
https://ls1tech.com/forums/attachmen...entid=419713&s
https://ls1tech.com/forums/attachmen...1&d=1380601268
Staging Lane
Joined: Mar 2011
Posts: 57
Likes: 0
From: Sioux City, IA
https://ls1tech.com/forums/attachmen...1&d=1380935444
It says it did, but you are right omc8, only 5.3 & 8.1 where available on the 2002-2006 models, and 5.3 & 6.0 on the 2007+ models.
Last edited by SS409; Oct 4, 2013 at 08:31 PM.
Staging Lane
Joined: Mar 2011
Posts: 57
Likes: 0
From: Sioux City, IA
Thread Starter
Registered User
Joined: Sep 2013
Posts: 8
Likes: 0
I'm thinking a TSP cam package, 228r 112lsa, with a dyno tune from MC racing in Overland Park, Kansas.. What do you all think? Can I reach 400whp at least? I've got the full aeromotive fuel system, electric fan, long tubes, no cats, Camaro throttle body, and what looks like a ls6 intake manifold, will be a 91 octane tune.
Staging Lane
Joined: Mar 2011
Posts: 57
Likes: 0
From: Sioux City, IA
Check casting number on back of block: tell me what you find
https://ls1tech.com/forums/attachmen...1&d=1381131584
https://ls1tech.com/forums/attachmen...1&d=1381131584
What intake is on it right now is irrevelant to what engine it is. Just about all of the ls stuff from 4.8, 5.3, 5.7 and 6.0 l stuff with swap to each other. So you can have a ls1 or ls6 intake on a 4.8, 5.3 or 6.0. The best way is to post some pics and do some research on your own. the 317 head number is a great start and would make all of us think you have a 6.0l but that doesnt mean someone put those heads on a different block.
