5.3 vortec - The 1947 - Present Chevrolet & GMC Truck Message Board Network

JMARQUEZ_13 · 01-02-2010, 01:28 AM

i was wondering if you can use a turbo 350 or 400 transmission on a 5.3 vortec motor? and if you can what do you need to make that work?

lsx72 · 01-02-2010, 01:31 AM

yea you can. just got to get the bell housing adapter. you can actually put any transmission behind them. my cousin runs a 4 speed bulldog behind his 6.0 in his mud buggy. it is a beast.

echo72 · 01-02-2010, 02:08 AM

Quote:

Originally Posted by JMARQUEZ_13

i was wondering if you can use a turbo 350 or 400 transmission on a 5.3 vortec motor? and if you can what do you need to make that work?

I saw that tranny swap being done on one of the builds, but I can't find it right now. Check the FAQ's, there is also some details about using those transmissions with GEN III engines.

**Thealien** · 01-02-2010, 08:09 AM

This was
Asked and answered 5 days ago

You can find what you need in that thread.

-T- · 01-02-2010, 10:52 AM

All you need is to redrill your flexplate using and old 350 flexplate to guide you on the 3 torque converter holes, then get a crank spacer from me or from some where like advanced adapters, and your rolling. Now if you want to still run a VSS for the computer, you will have to spend a little money to get a conversion for that. I never ran the VSS on my jeeps, and never had any issues. I have done 6 of these conversions, either for myself or for other people, and I'm about to put a 400 behind my 6.0 in my '69 CST. If you have any more ?'s feel free to ask or PM me. Good luck, Clay

JMARQUEZ_13 · 01-02-2010, 04:12 PM

ya i have a few more for ya. what about the fuel part of it do you need a fuel regulator? also the ignition can you kepp the stock ignition in the truck?

**Thealien** · 01-02-2010, 06:06 PM

WHat year engine? That will answer the fuel regulator question. Does your fuel rail have 1 or 2 lines coming from it?

You can keep the stock key/ignition switch as either stand alone or incorporate it into the LS harness.

Have you clicked on the link in my signature LS ENGINE SWAP INFORAMTION ? Lots of information there. I the first post there are 2 FAQ thread that will answer lots of your questions.

echo72 · 01-02-2010, 06:19 PM

Quote:

Originally Posted by JMARQUEZ_13

ya i have a few more for ya. what about the fuel part of it do you need a fuel regulator? also the ignition can you kepp the stock ignition in the truck?

Evidently, he hasn't read the posts that Thealien put out there.

01-02-2010, 01:28 AM	#1
JMARQUEZ_13 Registered User Join Date: Oct 2009 Location: MARYSVILLE WA Posts: 85	5.3 vortec i was wondering if you can use a turbo 350 or 400 transmission on a 5.3 vortec motor? and if you can what do you need to make that work? __________________ Josh 1968 C-10 Shortbox

01-02-2010, 01:31 AM	#2
lsx72 Registered User Join Date: Nov 2009 Location: greenville,sc Posts: 89	Re: 5.3 vortec yea you can. just got to get the bell housing adapter. you can actually put any transmission behind them. my cousin runs a 4 speed bulldog behind his 6.0 in his mud buggy. it is a beast.

01-02-2010, 08:09 AM	#4
Thealien Senior Member Join Date: Jun 2007 Location: Pine Ridge Florida Posts: 4,134	Re: 5.3 vortec This was Asked and answered 5 days ago You can find what you need in that thread. __________________ Click on my Not really a build thread, yet NOT SO RUST FREE RUST FREE BLAZER LS ENGINE SWAP INFORMATION THREAD BOLT RESTORATIONS 4l60 to an NP205

01-02-2010, 10:52 AM	#5
-T- Registered User Join Date: Oct 2009 Location: Easley, SC Posts: 130	Re: 5.3 vortec All you need is to redrill your flexplate using and old 350 flexplate to guide you on the 3 torque converter holes, then get a crank spacer from me or from some where like advanced adapters, and your rolling. Now if you want to still run a VSS for the computer, you will have to spend a little money to get a conversion for that. I never ran the VSS on my jeeps, and never had any issues. I have done 6 of these conversions, either for myself or for other people, and I'm about to put a 400 behind my 6.0 in my '69 CST. If you have any more ?'s feel free to ask or PM me. Good luck, Clay

01-02-2010, 04:12 PM	#6
JMARQUEZ_13 Registered User Join Date: Oct 2009 Location: MARYSVILLE WA Posts: 85	Re: 5.3 vortec ya i have a few more for ya. what about the fuel part of it do you need a fuel regulator? also the ignition can you kepp the stock ignition in the truck? __________________ Josh 1968 C-10 Shortbox

01-02-2010, 06:06 PM	#7
Thealien Senior Member Join Date: Jun 2007 Location: Pine Ridge Florida Posts: 4,134	Re: 5.3 vortec WHat year engine? That will answer the fuel regulator question. Does your fuel rail have 1 or 2 lines coming from it? You can keep the stock key/ignition switch as either stand alone or incorporate it into the LS harness. Have you clicked on the link in my signature LS ENGINE SWAP INFORAMTION ? Lots of information there. I the first post there are 2 FAQ thread that will answer lots of your questions. __________________ Click on my Not really a build thread, yet NOT SO RUST FREE RUST FREE BLAZER LS ENGINE SWAP INFORMATION THREAD BOLT RESTORATIONS 4l60 to an NP205

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.