SLWRDE

iTrader: (4)

I am in the process of rebuilding and installing a 5.3 LM7 with a TKO600 into my 1965 Cutlass and was wondering if anyone made a single turbo kit for a car like mine. I have done a ton of research and have called a couple of companies with no luck. CX Racing has a twin turbo kit for a 63-65 Chevelle that I am pretty sure would fit my car but I am not looking for a twin turbo set up unless I really have to go that route. The mods I am currently deciding on for the setup are listed below and I am looking to make 550-600 to the wheels. If anyone has any suggestions/recommendations for my setup please feel free to let me know. I would really appreciate the help. Thank you.

Gen III 5.3 LM7
TKO 600 Transmission
Stock intake manifold
Stock Heads
Siemens Deka 80 fuel injectors
BTR Twin Turbo Stage I Cam
BTR Push Rods
BTR Spring Kit and Titanium Retainers
ARP Head Bolts
ARP Connecting Rod Bolts
LS9 Head Gaskets
LS7 Lifters
Melling High Volume Oil Pump
Walbro 400 in tank fuel pump

Thanks for all the help.

Project GatTagO

iTrader: (7)

https://ls1tech.com/forums/conversio...manifolds.html

That will get you most of the hot side.

https://www.holley.com/products/ls_p.../parts/8510HKR

Andrew

brandon6.0

iTrader: (32)

that holley setup is pretty nice but u do still need to make some modifications to make it work. But any fab shop can finish it up for hardly nothing.

Or u could buy a log manifold from trick or kbracing. Install the log with one of there crossover pipes and bolt the turbo on. Kbracing I'm sure can get u what u need. He is on the performancetrucks.net site. Good guy to deal with.

SLWRDE

iTrader: (4)

Thanks guys for all the help. I was looking at the Holley manifolds but were worried that the crossover would not fit with a TKO600, but since its smaller than a T56 I don't think it will be an issue. I did talk to Todd from Holley and he said to wait for the 302-3 oil pan. So that's a plus. Any recommendations for turbos. Thanks again for all the help.

Project GatTagO

iTrader: (7)

The crossovers are more dependent on the bellhousing then they are on the transmission. What bellhousing are you using with the TKO?

As for turbo recommendations, you're about to get into a huge debate...LOL

If I was putting a 5.3L in my 70 GTO with a TKO600, I would do the BWS366SXE. Most people will say that it is way too small, but with a manual, and relatively heavy car, that is what I would go with...Many opinions will vary.

Andrew

SLWRDE

iTrader: (4)

I am more than likely going to use the GM Bell Housing unless there is a huge benefit in using the Quick Time Bell Housing. As far as turbos go I was thinking maybe the 475, or VS billet 7875 or maybe the Huron 7875. I am open to any recommendations when it comes to turbo options. I would rather get people's opinion here and get the right one the first time. Thanks again for all the help.

Project GatTagO

iTrader: (7)

When you say GM...am I to assume you're talking about the 621 big block reproduction bellhousings? If so, I suspect a crossover pipe that's made for a stock T56 bellhousing will work. But I don't know that for sure.

SLWRDE

iTrader: (4)

Sorry the GM 621 bellhousing is what I was referring to

Toddoky

The 621 bellhousing was not included in the CAD model used to design the Hooker turbo crossover tubes, so all or none of them may fit with it. You may have to use the universal one that we created and assemble it to fit your bellhousing.

Suncc49

VS racing 7875 feels great on a 5.3... spools nice and works well

SLWRDE

iTrader: (4)

Todd,

Does the universal kit just work with the Hooker manifolds or would it work with different manifolds. Thanks for all the info.

Suncc,

Hey man thats a sweet build you did. If you dont mind I will pm you and get some ideas for my build.

Toddoky

The parts were modeled to fit the specific geometry of the Hooker turbo manifolds, so I can't imagine they would work well with any other set of manifolds.

SLWRDE

iTrader: (4)

Ok cool. Thanks Todd for the info.

SLWRDE

iTrader: (4)

So it looks like I am going to go with the S475 with the 1.10 A/R, 83mm turbine and T4 from Force Inductions.

brandon6.0

iTrader: (32)

nice turbo! u should be very happy with it. I run a s480 billet and feel its a bit laggy with my 5.3 That s475 with a t4 should be perfect.

Project GatTagO

iTrader: (7)

Seems unnecessary big for your power goals and having a manual transmission. But then again, most people on this forum seem to like bigger than necessary turbos...

Andrew

SLWRDE

iTrader: (4)

Project,

Do you have any recommendations? My main goal is for great response with very little lag and room to grow in case we want more power. Thanks for all the help.

Project GatTagO

iTrader: (7)

Those two goals are mutually exclusive.

I made a recommendation in post number 5. If you want to go a little bigger, the S369sxe is the biggest I would use. The other upside is that the 3 series turbos are quite a bit smaller than the 4 series turbos. This makes packaging easier.

You never stated your current and future power goals, so that would be a good start. Again, I tend to favor smaller turbos and let power fall where it may. Plenty of people like the S475, but then again they all have automatic transmission, loose converters, and tend to be drag race oriented. From what you posted initially, that's not what you're doing.

Andrew

RICE ETR

iTrader: (3)

TC78?
I have one and it's insta-boost yet some have really made some great power with it once turned up. It also has to be one of the best power to physical size turbos out there.

Project GatTagO

iTrader: (7)

Is this what they call Benita?

Andrew