Built TBI motors? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

PJ Martin · 07-29-2009, 03:51 PM

I have a 87 swb with a tired 305 tbi and 700r4. I have a tbi 350 out of a 92 truck sitting in the garage that needs a rebuild. Anyone ever built one(performance) and left it tbi? All my buddys say " put a carb on it". but i kinda like the fuel injection. I have heard of people putting 454 tb's on them and Holley sales a 670 cfm unit. What i wanna do is redo the short block, Decent heads and cam, intake and a better t.b.. any suggestions? thanks

Jonboy · 07-29-2009, 04:54 PM

GMPP makes a TBI Vortec intake also. That opens up a good option for a good flowing head. The downside is that the intake is almost $400.

Albatrossian · 07-29-2009, 10:29 PM

You can build a good potent TBI motor.. the only thing you'd really have to do is get the ecm re-mapped.. and it may be a little difficult to find someone that can do it.

Desert1957 · 07-29-2009, 10:37 PM

Awesome,

I have an 87 that I swapped a 92 350 into. If you want all the details , Do's and Don'ts PM me & I will list what I did.

The ECM is no big deal , I found a guy off ebay who is great to deal with, sent me a new re-flashed Prom , plugged right into my old ECM , runs awesome. Just tell him what stage you want...

Performance
Gas mileage
Emissions

Desert

PJ Martin · 07-30-2009, 05:45 AM

thanks Guys.

b454rat · 07-30-2009, 10:23 AM

Apparently I got lucky when I built my 406 for my 90 GMC. .030 over 400 block, 350 rods, 22cc dish KB pistons, Comp Cams Xtrme Energy 268 cam, stock but rebuilt TBI heads. Everything from the heads up was 100% stock, just either rebuilt or replaced. Had Flowtech headers IIRC, Y-pipe into 3" single, then dual out Flowmaster. ECM was stock, no custom chip, actually at that time I didn't even know where the ECM was.

Truck had a sweet choppy idle, pulled like a freight train throughout the entire RPM range. Didn't have a tach, so not sure just how many R's it did. Ran friggin awesome.

Brian and TBIchips.com can get a chip to run with just about any motor. Drop him and email and let him know what you want to do. Oh, and don't run that intake, get a 4 barrel carb intake and get an adapter to mount the TBI to.

Desert1957 · 07-31-2009, 07:08 AM

Yes,
"TBI CHIPS" is the guy I used , He is awesome to deal with , will configure anything you need.

Desert

07-29-2009, 03:51 PM	#1
PJ Martin Registered User Join Date: Jul 2009 Location: Buford Georgia Posts: 6	Built TBI motors? I have a 87 swb with a tired 305 tbi and 700r4. I have a tbi 350 out of a 92 truck sitting in the garage that needs a rebuild. Anyone ever built one(performance) and left it tbi? All my buddys say " put a carb on it". but i kinda like the fuel injection. I have heard of people putting 454 tb's on them and Holley sales a 670 cfm unit. What i wanna do is redo the short block, Decent heads and cam, intake and a better t.b.. any suggestions? thanks

07-29-2009, 04:54 PM	#2
Jonboy Slots go on anything! Join Date: May 2003 Location: Richardson, TX Posts: 5,957	Re: Built TBI motors? GMPP makes a TBI Vortec intake also. That opens up a good option for a good flowing head. The downside is that the intake is almost $400.

07-29-2009, 10:29 PM	#3
Albatrossian Georgia Boy Join Date: Jun 2008 Location: Douglas, Georgia Posts: 370	Re: Built TBI motors? You can build a good potent TBI motor.. the only thing you'd really have to do is get the ecm re-mapped.. and it may be a little difficult to find someone that can do it. __________________ 81 GMC High Sierra, 2WD, 357ci/700R4, 3.73s, posi.

07-29-2009, 10:37 PM	#4
Desert1957 Registered User Join Date: Apr 2009 Location: New Freedom Pa. Posts: 1,335	Re: Built TBI motors? Awesome, I have an 87 that I swapped a 92 350 into. If you want all the details , Do's and Don'ts PM me & I will list what I did. The ECM is no big deal , I found a guy off ebay who is great to deal with, sent me a new re-flashed Prom , plugged right into my old ECM , runs awesome. Just tell him what stage you want... Performance Gas mileage Emissions Desert

07-30-2009, 05:45 AM	#5
PJ Martin Registered User Join Date: Jul 2009 Location: Buford Georgia Posts: 6	Re: Built TBI motors? thanks Guys.

07-30-2009, 10:23 AM	#6
b454rat Senior Member Join Date: May 2004 Location: Binghamton, NY Posts: 3,469	Re: Built TBI motors? Apparently I got lucky when I built my 406 for my 90 GMC. .030 over 400 block, 350 rods, 22cc dish KB pistons, Comp Cams Xtrme Energy 268 cam, stock but rebuilt TBI heads. Everything from the heads up was 100% stock, just either rebuilt or replaced. Had Flowtech headers IIRC, Y-pipe into 3" single, then dual out Flowmaster. ECM was stock, no custom chip, actually at that time I didn't even know where the ECM was. Truck had a sweet choppy idle, pulled like a freight train throughout the entire RPM range. Didn't have a tach, so not sure just how many R's it did. Ran friggin awesome. Brian and TBIchips.com can get a chip to run with just about any motor. Drop him and email and let him know what you want to do. Oh, and don't run that intake, get a 4 barrel carb intake and get an adapter to mount the TBI to. __________________ 2000 GMC CCSB 454/4L80 6” lift SAS 1999 Chevy CCSB 454/NV4500 4” SAS 1999 GMC Yukon 350/4L60 6" SAS

07-31-2009, 07:08 AM	#7
Desert1957 Registered User Join Date: Apr 2009 Location: New Freedom Pa. Posts: 1,335	Re: Built TBI motors? Yes, "TBI CHIPS" is the guy I used , He is awesome to deal with , will configure anything you need. Desert



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