alright, i need to get my s10 back on the road. i miss having power. plus the 12pt cage is going in this spring so ill really have the itch.
i have been looking into motor options and i noticed alot of discussion about boosted 5.3l truck motors. it seems guys are running these with ls6 cam and springs, and a 70-76mm turbo around 10 lbs and are seeing 500-600hp. i like the idea of this because when i want to go bigger, my mounting, electrical, etc is all set for a larger 6.0l…i would just have to swap out injectors and tune to get it working it seems…
it looks like i can pick up a 5.3l in nice shape with somewhat low miles for ~$600 from the junkyard.
my problem comes in that i know nothing at all about boost. all of my knowledge with motors and building power is naturally aspirated, and i havent really messed with these newer motors much. can anyone tell me what kind of cost im looking at to piece together a turbo setup for this? i intend on fabbing the headers and piping for this. my truck also currently has zero factory computer as its set up for old school carburated. using a fuel cell so im thinking use an inline walbro for fuel pump?
A lot of rising costs are just in what materials you decide to use, how nice you want things to look, and what you end power potential are going to be
At the end of the day this is deff somethjing that can be done with budget in mind IMO but generally costs more then anticipated for most.
A single 255 pump worked for me in a previous car to 600rwhp while some have had issues at around 500ish.
If you have any specific questions let me know and I will try to answer them.
Also the 317 heads have larger chambers then the standard 241/243 heads so this will drop your compression with factory pistons. Couple the 317 heads with a complimenting head gasket, arp studs, a custom turbo cam and you’ll have a fast little 327.
Probably would want to run a ~70mm turbo at like 15psi maybe 18-20 on race gas?
Food for thought. 5.3L compression power NA…this will give you numbers when you’re out of boost.
Little secret you can run more boost reliably on a 5.3L than you can on a 6.0L…shhhhhhh
Depending on the money you have to spend a good combo would be iron 5.3L, forged pistons, rods and then turn it up with a little 76mm. At the very least if you want to run boost you should take the engine apart and open up the top & second ring gaps
im going to look into ls1 tech… i think this would make my s10 go pretty good. with the work im doing to the chassis and other weight reduction i think i could still get the truck sub 3000 lbs even with this setup.
i know nothing at all about tuning efi. ive only messed with carburators lol
Iron 5.3L, 010" over forged pistons, good rods, and good aftermarket heads (AFR, TFS, Dart, etc.) make a nasty combo that retains a gasket well with std ARP head studs. That along with LS9 head gaskets and there should be no problem running over 20 psi. Can’t say the same for a 4.00" bore 6.0L or larger engines
So then you agree on a proper setup and tune the larger bore will hold the heads down haha.
I went with cubes last time and will go with cubes again. GIMME ALL THEM CUBIC INCHES!!! PUSHRODSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
