5.3 engine build
07-25-2013, 09:13 AM
#1
Registered User
Thread Starter
Join Date: Jul 2013
Posts: 10
Likes: 0
Received 0 Likes
on
0 Posts
5.3 engine build Hey everyone I'm looking for some info. I'm going to be rebuilding my chevy truck 5.3 and I'm thinking about stroking it to a 383 and possibly twin turbo. I'm looking for suggestions on cams, if the stocks heads ported out are good enough or aftermarket suggestions, intake suggestions I know the truck intake is great for low range torque but how about with this build are their better options? I'm looking to make some serious torque and power but don't want to sacrifice too much low end being in a truck.
07-25-2013, 09:24 AM
#2
07-25-2013, 11:59 AM
#4
If you go NA then you want a high compression setup - Flat Top Pistons and a moderately aggressive cam.
If you go Twin Turbo you want a low compression motor and a turbo grind cam.
07-25-2013, 12:32 PM
#6
Well, the cam is going to be different for N/A or Turbo. You need to first figure out if you're going to stay N/A or go Turbo. Once you've figured that out, then you can get the correct cam for you application. On a side note, if you are going turbo, I wouldn't waste time and money going with a 383. Stock 5.3 turbo cars/trucks are making HUGE power.
07-25-2013, 05:38 PM
#7
Registered User
Thread Starter
Join Date: Jul 2013
Posts: 10
Likes: 0
Received 0 Likes
on
0 Posts
Ok thanks for the info any idea what kinda power with stock 5.3 tt application but I would port out the heads and cam and stuff versus the 383 tt like superchevys modern mouse
Trending Topics
07-25-2013, 05:44 PM
#8
what current head casting numbers do you have ?look at a Texas Speed 383 rotating assembly,they cost around $1700 and up.I would not trust a stock GM short block to handle too much boost and live long.
07-25-2013, 06:12 PM
#9
Registered User
Thread Starter
Join Date: Jul 2013
Posts: 10
Likes: 0
Received 0 Likes
on
0 Posts
Ok ya I've only heard of like 9psi of boost stock if I was to do all new pistons and everything to get more boost should I just do the 383 while I'm in there? Also head castings Are 706's
07-25-2013, 06:28 PM
#10
TECH Apprentice
iTrader: (5)
Join Date: May 2010
Location: Central Valley, CA
Posts: 369
Likes: 0
Received 0 Likes
on
0 Posts
stock 5.3 w/ a ls6 cam & springs can easily get you up to 600 hp safely without touching the bottom end. A good friend of mine has a 2003 silverado boosting 550 conservatively with his stock 5.3 and it's lasted him for the past 4 years 35,000+ miles considering he also uses the truck to tow his wake boarding boat on occassion and takes the truck up the mountains for snowboarding every winter. It's seen a lot of abuse and has held up fine.
07-26-2013, 08:22 AM
#15
And the best part is you can do it safely on the stock bottom end. People blow **** up when they get too greedy and keep feeing it more and more boost. In regards to the bottom end, ARP rod bolts would be a great investment and help secure the bottom end. Take some time and check out the FI section on here. There is even a thread about 5.3's and what kind of power they are making.
07-26-2013, 09:41 AM
#16
Teching In
Join Date: Jul 2013
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
I am thinking about sort of the same project. Had my sights on an all aluminum 6.2 from an escalade but that deal fell through on me but can get me hands on a 5.3, wondering what kind of options I could have with the 5.3, had already done some homework on the 6.2 but now plans will have to change... Building it for a S-10 mostly drag truck but always have to drive it around town some too....
07-26-2013, 01:02 PM
#18
I'd hit up Martin Smallwood (Tick Performance) for the cam. They have some shelf turbo cams that would probably work, or he could do you up a custom cam. Are you going twin turbos, or a larger single? In the near future, I'm going to get a junkyard LQ4 and go with a S480 turbo.
07-26-2013, 08:24 PM
#20
Registered User
Thread Starter
Join Date: Jul 2013
Posts: 10
Likes: 0
Received 0 Likes
on
0 Posts
I'd hit up Martin Smallwood (Tick Performance) for the cam. They have some shelf turbo cams that would probably work, or he could do you up a custom cam. Are you going twin turbos, or a larger single? In the near future, I'm going to get a junkyard LQ4 and go with a S480 turbo.