Gt3582 vs 66/62 twin 5.3
 

Hung up between a few ebay turbos.
5.3, stg 2 turbo cam, 4l80e, 3400 converter, 3.42 gear, 27.5" tire. 6.0 swap in the the near future (on the stand being built)
Not a daily, and sees alot of track time, but sees just as much street time, I would like to max out a pair of walbro 450s and fic 95's. Which would you choose ?
Generic gt3582
Compressor wheel: 61.4mm/82mm
Compressor Housing: 0.7 A/R Anti-Surge, 4" Inlet, 2.5" Outlet

Turbine wheel: 68mm/62.3mm
Turbine housing: T4 Inlet, V-Band outlet(ID roughly 3'', OD roughly 3.5''), A/R 0.82

rev9 66/62
Compressor cover : anti surged 70 series cover
Compressor Wheel diameter: 65 mm / 91mm
Turbine wheel diameter : 62mm / 70mm
Exhaust trim: 70 a/r
Turbine flange type: t4

Possibly even the rev9 72/68

• Compressor Wheel diameter: 72 mm / 102 mm
• Turbine wheel diameter : 68mm / 79mm
• Exhaust trim: 96 a/r Turbine flange type: t4

As I recall, couple guys on LS1tech had the rev9 turbos and were less than impressed with their performance.

I ordered the gt35 t4 units, I think those will get pretty close to maxing out my fuel system any way and spool better than the others

If those are Chinese GT35 you can replace a few parts to make it pretty close to a true Garett reliability for something like $300-500. Out of the box they tend to push seals are low boost.

Hopefully they hold long enuff for me to be able to upgrade to Bosch 210s and s366's