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would this work?

Old Aug 10, 2005 | 09:35 PM
  #1  
91 camaro racer's Avatar
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Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
would this work?

ok, so i am going to get a new engine, just have a few questions. i am planning on getting this engine, it is a 350h.o. my questions are. would i be able to use the computer off of my 305 and could i use the same throttle body and intake?

future engine?
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Old Aug 11, 2005 | 01:02 AM
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Car: 1991 Trans Am GTA
Engine: 355
Transmission: 4L60
Axle/Gears: 4th gen 10 bolt 3.42 posi
Re: would this work?

Originally posted by 91 camaro racer
ok, so i am going to get a new engine, just have a few questions. i am planning on getting this engine, it is a 350h.o. my questions are. would i be able to use the computer off of my 305 and could i use the same throttle body and intake?

future engine?

the computer from the 305 won't work unless you put a chip in it for a 350 or a custom burnt which is what i believe you'll be needing to run this engine properly. the intake will work but you'll need bigger injectors since the 305 uses smaller injectors than the 350. other than that though most everything else should work fine. good luck.
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Old Aug 11, 2005 | 01:50 AM
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Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
Nope won't work, you need a vortec style intake.
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Old Aug 11, 2005 | 01:54 AM
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From: Toronto, Ohio
Car: 1991 Trans Am GTA
Engine: 355
Transmission: 4L60
Axle/Gears: 4th gen 10 bolt 3.42 posi
i thought the tpi's bolted to vortec heads?
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Old Aug 11, 2005 | 06:55 AM
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From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
how are the intakes different? i couldn't use the one i have now just untill i get a new one?
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Old Aug 11, 2005 | 06:58 AM
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From: Toronto, Ohio
Car: 1991 Trans Am GTA
Engine: 355
Transmission: 4L60
Axle/Gears: 4th gen 10 bolt 3.42 posi
the bolt angles are different on 87 and later heads and so on but i always thought the tpi intake bolted to vortecs but i could be wrong.
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Old Aug 11, 2005 | 08:55 AM
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Car: 88' IROCZ
Engine: 388 TPI Motown 350 Race block
Transmission: 700R4
Axle/Gears: 2.77
Originally posted by budfreak1
the bolt angles are different on 87 and later heads and so on but i always thought the tpi intake bolted to vortecs but i could be wrong.
Yes, you can modify the vortec intake to bolt on but, the rectanglur ports on the intake is slightly longer (some say taller,) the heads will be sucking in air from that slight difference.

When I laid the stock TPI intake between my new fast burn alum heads , there was a gap of no less than a 1/4", I would clasify tha t as a huge leak.
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Old Aug 11, 2005 | 11:07 PM
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Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
I repeat you can only put a Vortec intake on vortec heads. No way around it unless you want to weld 1/2" of aluminum to the top of every port.

You can't do it. Vortec heads are different than centerbolt heads which you are referring to.
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Old Aug 12, 2005 | 07:47 PM
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From: Houston, Texas
Car: 88' IROCZ
Engine: 388 TPI Motown 350 Race block
Transmission: 700R4
Axle/Gears: 2.77
Originally posted by ME Leigh
I repeat you can only put a Vortec intake on vortec heads. No way around it unless you want to weld 1/2" of aluminum to the top of every port.

You can't do it. Vortec heads are different than centerbolt heads which you are referring to.
The Heads I refer to are "Fast Burns," never said they weren't Votecs.
The head in the images below ia a GM Fast Burn Aluminum head P/N 12464298. As can be seen it has dual intake bolt patterns, as well as center, and rail valve cover bolt patterns.
I bought a Scroggins-Dickey High-Flow Vortec TPI baseplate (intake) P/N 12498060 to top it off.
GM Technical Note for the Fast Burn head:
Use intake manifold P/N 12496820, 12366573, 12496822, or 10051103 with the Fast Burn cylinder head.

These are all Vortec intakes. Which means that the Fast Burn head, incorporates the Vortec design.



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Old Aug 12, 2005 | 11:08 PM
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Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
I wasn't talking to you.
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Old Aug 13, 2005 | 12:16 AM
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From: Houston, Texas
Car: 88' IROCZ
Engine: 388 TPI Motown 350 Race block
Transmission: 700R4
Axle/Gears: 2.77
Originally posted by ME Leigh
I wasn't talking to you.
Ok, my mistake.
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Old Aug 13, 2005 | 11:48 AM
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From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
ok so i can't use the stock intake, but would the motor mounts line up? or would i have to fab my own?
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Old Aug 13, 2005 | 02:16 PM
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rgarcia63's Avatar
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From: Houston, Texas
Car: 88' IROCZ
Engine: 388 TPI Motown 350 Race block
Transmission: 700R4
Axle/Gears: 2.77
Motor mounts should be same.
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Old Aug 13, 2005 | 05:07 PM
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rgarcia63's Avatar
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From: Houston, Texas
Car: 88' IROCZ
Engine: 388 TPI Motown 350 Race block
Transmission: 700R4
Axle/Gears: 2.77
Motor mounts should be same.
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Old Aug 13, 2005 | 11:20 PM
  #15  
ME Leigh's Avatar
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From: Valley of the Sun
Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
Originally posted by 91 camaro racer
ok so i can't use the stock intake, but would the motor mounts line up? or would i have to fab my own?
Huh? What motor mounts? We are talking intake manifold here they bolt to the heads. THe motor mounts bolt to the frame and the side of the motor.
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Old Aug 13, 2005 | 11:22 PM
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91 camaro racer's Avatar
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From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
yeah i switched the topic, since we came up with the answer to the intake instead of making another thread i just asked about the motor mounts on here. lol, it will be ok
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