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Engine Swap Everything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.

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Old 02-10-2007, 01:12 PM   #1
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swap vortec long block to TBI injection

Hi,
I have searched thru the posts and did not find an answer to this specific question:
I want to swap a '99 vortec long block, into my '88 2wd full size truck, that had a TBI 5.7 in it.

I am going to get the GM intake that has the tbi bolt pattern and the vortec head bolt pattern, so the hurdle I have to clear now is the ignition system.

I plan to retain the TBI system, so can I just swap the TBI distributor in? Or are the VORTEC blocks different in any way? DO I have to change the distributor gear?

thanks!
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Old 02-10-2007, 08:38 PM   #2
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Engine: 305 TPI
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Quote:
Originally Posted by R.Brown View Post
Hi,
I have searched thru the posts and did not find an answer to this specific question:
I want to swap a '99 vortec long block, into my '88 2wd full size truck, that had a TBI 5.7 in it.

I am going to get the GM intake that has the tbi bolt pattern and the vortec head bolt pattern, so the hurdle I have to clear now is the ignition system.

I plan to retain the TBI system, so can I just swap the TBI distributor in? Or are the VORTEC blocks different in any way? DO I have to change the distributor gear?

thanks!
http://www.thirdgen.org/techboard/tb...i-buildup.html
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Old 03-21-2007, 07:28 PM   #3
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Re: swap vortec long block to TBI injection

THANKS!
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Old 03-25-2007, 11:15 PM   #4
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Re: swap vortec long block to TBI injection

are you not interested in switching out just the heads? i dont think your gonna get too much extra power by switchin the entire motor itself.
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Old 03-26-2007, 09:18 AM   #5
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Re: swap vortec long block to TBI injection

Quote:
i dont think your gonna get too much extra power by switchin the entire motor itself
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Numquam ponenda est pluralitas sine necessitate.
William of Ockham, c. 1330 AD, from Quaestiones et decisiones in quattuor libros Sententiarum Petri Lombardi

Roughly paraphrased into modern English, and applied to figuring out what's wrong with your car:

The simplest explanation that fits all the facts is probably the right one.
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Old 03-26-2007, 01:42 PM   #6
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Re: swap vortec long block to TBI injection

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Originally Posted by sofakingdom View Post
instead of laughing how about you explain yourself?
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Old 03-26-2007, 01:48 PM   #7
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Re: swap vortec long block to TBI injection

Because I don't have to. I'm not the one that came up with ..... that.

How about, you explain yourself? Like, tell us about how putting those heads on some L05, will make more power than leaving them on the motor they're on.
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Numquam ponenda est pluralitas sine necessitate.
William of Ockham, c. 1330 AD, from Quaestiones et decisiones in quattuor libros Sententiarum Petri Lombardi

Roughly paraphrased into modern English, and applied to figuring out what's wrong with your car:

The simplest explanation that fits all the facts is probably the right one.
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Old 03-26-2007, 08:56 PM   #8
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Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears

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Re: swap vortec long block to TBI injection

Quote:
Originally Posted by sofakingdom View Post
Tell us about how putting those heads on some L05, will make more power than leaving them on the motor they're on.

When they make a side trip to a porter!

http://www.thirdgen.org/techboard/tb...head-swap.html
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HT 383 Shortblock, balanced, blueprinted, 10.5:1, total seal rings, ported 906 Vortecs, Edelbrock TPI Vortec base, Custom Reed Grind Hydraulic Roller Cam, Doug Thorley Tri-Ys, 2 1/2" exhaust, Stock TPI runners and plenum, stock 48mm TB, 24# LT1 injectors, AFPR @ 46 psi, 7730 ECM, DIY Tuning, stock 1,600 rpm stalled 700r4, 3.08 gears, P295/50/R17 tires.

Soon- 4L60E and 7427 TBI PCM in MPFI mode

Last edited by Fast355; 03-26-2007 at 09:00 PM.
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Old 03-26-2007, 08:56 PM
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