5.3 setup?
Thread Starter
12 Second Club
Joined: Feb 2006
Posts: 993
Likes: 3
From: Waukesha,WI
5.3 setup? I got a block super cheap from work it needs some work. it came out of a 2004 suburban that didnt' change the oil on for 11,000 miles no ticking no knocking just ALOT ALOT of sludge. My question is what is an ideal setup for this motor with boost? should i keep the stock internals and clean then up? I don't really know alot about boosting these things. So any help would be greatly appreciated. Thanks all
don't mean to hijack here....I had the same idea and people said stay with the ls1 if I had a choice since the piston and rods were made out of the same material(weakest link).
I dont really know whats stronger, but my stock 5.3L bottom end from a junk yard has been holding up for 3 years putting 640hp to the wheels through a really loose converter. And im not easy on it.
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I have 317s on mine, they work fine. The valves are in the same position, same spot as the 5.3 heads. The combustion chamber is bigger, it overlaps the cylinder slightly. But larger combustion chamber = less valve shrouding = better flow. The 317s also have better exhaust ports.
I have 317s on mine, they work fine. The valves are in the same position, same spot as the 5.3 heads. The combustion chamber is bigger, it overlaps the cylinder slightly. But larger combustion chamber = less valve shrouding = better flow. The 317s also have better exhaust ports.
Thread Starter
12 Second Club
Joined: Feb 2006
Posts: 993
Likes: 3
From: Waukesha,WI
so i can reliably put down some good numbers on the stock bottom end? I don't know where to start with a parts list either. Where do i even start looking for turbo parts and other things i'll need like intake and fuel
here was my list... it should be a good start
Masterpower T-70 Turbocharger with .96 exhaust housing (t4 flange) now im going with a 75mm S400 but t70 will be good for 600hp-ish
arp rod bolts (not needed)
arp head bolts (not needed)
yellow ls6 springs
hardened pushrods
melling high volume oil pump (not needed)
cloyes HD timing chain (not needed)
ls6 cam (not needed but would help)
atleast 1 walbro 255lph pump 2 if going above 500hp
boost referenced fuel pressure regulator (aeromotive 13101 would be good)
60# injectors
2 1/2" crossover (center mount)
31"x12"x3" a2a intercooler
3" coldside
tial 50mm BOV
tial 38mm WG
some kid of boost controller
snow performance meth kit (not needed)
3 1/2" downpipe with cutout into magnaflow
https://ls1tech.com/forums/forced-in...induction.html - good read for a newbie
Masterpower T-70 Turbocharger with .96 exhaust housing (t4 flange) now im going with a 75mm S400 but t70 will be good for 600hp-ish
arp rod bolts (not needed)
arp head bolts (not needed)
yellow ls6 springs
hardened pushrods
melling high volume oil pump (not needed)
cloyes HD timing chain (not needed)
ls6 cam (not needed but would help)
atleast 1 walbro 255lph pump 2 if going above 500hp
boost referenced fuel pressure regulator (aeromotive 13101 would be good)
60# injectors
2 1/2" crossover (center mount)
31"x12"x3" a2a intercooler
3" coldside
tial 50mm BOV
tial 38mm WG
some kid of boost controller
snow performance meth kit (not needed)
3 1/2" downpipe with cutout into magnaflow
https://ls1tech.com/forums/forced-in...induction.html - good read for a newbie
I would run a little larger turbo unless you already have that one. Also stick at least a ls6 cam in there the 5.3 cam in anemic. We did a s10 with a turbo 5.3, t6 76mm and it brings the turbo on quick. Its a completly stock 5.3 longblock with a ls1 intake. We will either be installing a ls6 cam or a forged motor depending on budget.
