Non Pontiac Motors in Pontiacs includes factory 403,305,350 Chevy, Buick V6,
Also Pontiac Motors in non-Pontiacs!

          
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  #21  
Old 05-30-2014, 08:58 PM
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Default front coil springs

Quote:
Originally Posted by Donovan View Post
very interesting journey here.

I had a question that skimming didn't answer. What front springs did you use for the swap?
They are the same 455 none A/C...car sits 1" higher than before which is fine by me

  #22  
Old 05-31-2014, 01:16 PM
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Thanks!

It looks very clean. You're living the hobby at it's finest. That's where the magic is for me too. You can try something and change it if you want, or even go back.

  #23  
Old 02-15-2015, 03:53 PM
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Default turbo now

So now I have decided to install a turbo on my motor. Went ahead and bought hot exhaust. from Dirty Dingo. Turbo will be 76-80+mm, 46mm W.G. & 50mm BOV. carb will probably be 750cfm from CSU..check couple pictures from Dirty Dingo website..I know probably not the best exhaust system, it will probably be ok, I dont have time to cut and weld my exhaust system.
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  #24  
Old 02-17-2015, 06:05 PM
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These guys know a HEAP about turbocharging 5.3 LSx motors. Just thought I'd post the link in case it helps you out at all.

Cheers!

https://sites.google.com/site/sloppy...unkyardturbols

  #25  
Old 10-10-2015, 01:08 AM
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Default turbo ls 5.3

So far it is almost done, I will be running a 3.5" down pipe, split to a Y 3" exhaust, need to installed aeromotive A1000 fuel pump and filters, regulator, thinking about only 10psi for now.
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  #26  
Old 11-09-2015, 07:16 PM
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Quote:
Originally Posted by 69FIREBIRD76MM View Post
So far it is almost done, I will be running a 3.5" down pipe, split to a Y 3" exhaust, need to installed aeromotive A1000 fuel pump and filters, regulator, thinking about only 10psi for now.
Are you still running it without an intercooler?

How did it perform?

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  #27  
Old 11-10-2015, 02:02 AM
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Default turbo ls 5.3

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Are you still running it without an intercooler?

How did it perform?
I haven't finished hooking up the fuel system yet. Being real busy working. I am gonna try keep below 10 lbs without intercooler, add watermeth later on. I will update when I drive it.

  #28  
Old 11-10-2015, 09:15 AM
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Before you put the turbo on, did you calculate the cost of the LS swap? I was just curious. Everyone says its a cheap swap but seems like you spent some coin.I have a car in mind for an LS swap and want to know what I'm in for.

  #29  
Old 11-10-2015, 11:07 AM
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JSPONT
Yup is not cheap, Adds up eventually, If you are able to used your ls with out changing anything, except cam and springs, maybe you can get away with cost, like fabbing your own exhaust, keeping it efi, but then the turbo, wastegate , BOV, piping, exhaust, injectors, and tuning your car.

  #30  
Old 01-04-2016, 07:01 PM
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Default 5.3 ls turbo

Just finished installing fuel system, was able to drive it on my street and do a small burnout. Now It just needs to go to muffler shop and finished the exhaust.
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  #31  
Old 09-23-2018, 09:43 AM
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Update please

  #32  
Old 09-23-2018, 11:45 AM
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Default ls swap

I blew that 5.3 motor racing on the street, now it has stock 6.0, corvette heads with BTR springs, retainers and .620" lift cam, FiTech efi stand alone harness Intanks efi system. This is the last time I mess with ls motor, this one blows I have a 455 I can put back in car.
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  #33  
Old 09-23-2018, 01:23 PM
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No more turbo? That motor will last forever...

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  #34  
Old 09-23-2018, 01:39 PM
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FrankieT/A, yup no more turbo, this 6.0 should be around 500 to crank, plenty for me, turbos are addicting, I was always
Doing burn outs and racing on street with that turbo.

  #35  
Old 09-23-2018, 01:45 PM
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I have another thread going right now selling my Pontiac roller cam and lifters because of switching to LS. I have a 6.0 with LS3 heads with 5k miles on it . I'm putting my FITect on it because of functional hood scoop. Still collecting swap parts. I'll post pics when complete.

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  #36  
Old 09-23-2018, 04:55 PM
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That 5.3 with springs and .587" lift cam will run high 12's all day long, I couldn't believe it, Never had a chance to run it on the track with the turbo but was expecting high 10's,
Now will see how it runs with the 6.0.

  #37  
Old 08-04-2019, 10:11 PM
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Default LS motor is out

I sold the complete 6.0 motor to my buddy for his early camaro. ..now going back to pontiac heart 455..so exciting. .
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  #38  
Old 08-07-2019, 09:33 PM
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Quote:
Originally Posted by 69FIREBIRD76MM View Post
I sold the complete 6.0 motor to my buddy for his early camaro. ..now going back to pontiac heart 455..so exciting. .

Curious... what made you decide to go back?

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  #39  
Old 08-07-2019, 09:40 PM
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Quote:
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Curious... what made you decide to go back?
I wasn't very happy having a LS motor in it, they sound very different than pontiacs , I defenetely love the pontiac sound, and my buddy convinced me to sell him the motor. I got a 455 4 bolt that is going back in there.

  #40  
Old 09-01-2019, 10:19 AM
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So after all that...how did the 5.3 non-turbo compare to the 455 in driveability? And then the 6.0? HP and torque may be similar but the rpm curve is higher. I've been thinking of going LS but reluctant to lose the bottom end torque. I REALLY miss the power of my 11-sec T-Type so was thinking LS turbo, but don't want to drive around a gutless turn when off boost.

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