305 tbi to 350 tbi
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From: Decatur
Car: 1990 Camaro RS
Engine: 305 TBI
Transmission: 5 speed
305 tbi to 350 tbi
i own a 1990 camaro rs, which as you know has the 305 tbi, also have the 5 speed. well at some point i would like to take the 350 tbi out of a k5 blazer. would it fit with out any problem? what mods would i have to do? i would add mods on before put in. also i would like to add a TR6060 tranny, whats kinda of adapter(if needed) whould i need. and would a rear axel out of a 1990 z28 bolt up with minimal problems, i know i would have to redo break lines, but that no biggie.
Last edited by Camaro RS; Sep 23, 2009 at 02:18 PM. Reason: forgot the complete package.
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From: Greenville
Car: 1991 formula
Engine: 350 tbi
Transmission: T-5
Axle/Gears: 308 posi
Re: 305 tbi to 350 tbi
it will bolt right up all you need is 350 injectors and a 350 5spd chip i got mine from tbichips.com and am very happy with it
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Joined: Jun 2008
Posts: 112
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From: Greenville
Car: 1991 formula
Engine: 350 tbi
Transmission: T-5
Axle/Gears: 308 posi
Re: 305 tbi to 350 tbi
they will fit. basicly the only difference between the 305 and the 350 is the internals but the outside of the blocks are identical
Joined: Mar 2000
Posts: 43,187
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Don't forget to install a pilot bearing in the crank for the transmission input shaft before installing the clutch/transmission.
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From: Norwalk, CA
Car: 91Z28
Engine: 5.7 ls1
Transmission: 4l60e
Axle/Gears: 3.42
Thread Starter
Junior Member
Joined: Feb 2009
Posts: 42
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From: Decatur
Car: 1990 Camaro RS
Engine: 305 TBI
Transmission: 5 speed
Re: 305 tbi to 350 tbi
dont you usually do that when you change the clutch? i have a zoom multi and a new slave cylinder. and the pilot bearing should be with the cluth.
Thread Starter
Junior Member
Joined: Feb 2009
Posts: 42
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From: Decatur
Car: 1990 Camaro RS
Engine: 305 TBI
Transmission: 5 speed
Re: 305 tbi to 350 tbi
also, i would like to add a TR6060(corvette zr1 tranny) transmission. woat would i need to do? what kind of adapter would i need?
Junior Member
Joined: Sep 2009
Posts: 5
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Car: 1991 Camaro
Engine: 305TBI
Transmission: 5 Speed
Re: 305 tbi to 350 tbi
Hey guys...
I have a 91 Rs 305 TBI T5. Im looking to do the simple L98 long block Swap... I have access to many junkyards... any specific engine code im looking for when scavenging for my L98?? Again, im looking for something that will bolt right up... Someone told me avoid anthing with aluminum heads otherwise I'll be sorry. The original Heads on the L98 were cast correct?
Also, for those of you that have done this swap... will I truely only need new injectors and a new prom to make this frankenstein a success??? Everything else will just slide into place?
I have a 91 Rs 305 TBI T5. Im looking to do the simple L98 long block Swap... I have access to many junkyards... any specific engine code im looking for when scavenging for my L98?? Again, im looking for something that will bolt right up... Someone told me avoid anthing with aluminum heads otherwise I'll be sorry. The original Heads on the L98 were cast correct?
Also, for those of you that have done this swap... will I truely only need new injectors and a new prom to make this frankenstein a success??? Everything else will just slide into place?
Joined: Dec 2008
Posts: 2,540
Likes: 0
From: Norwalk, CA
Car: 91Z28
Engine: 5.7 ls1
Transmission: 4l60e
Axle/Gears: 3.42
Re: 305 tbi to 350 tbi
That's the excat swap i wanna do if you do it before me can you please pm how the swap went
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Junior Member
Joined: Feb 2009
Posts: 42
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From: Decatur
Car: 1990 Camaro RS
Engine: 305 TBI
Transmission: 5 speed
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