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Reload this Page 305 tbi to 350 tbi

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 09-20-2009, 06:02 PM   #1
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Car: 1990 Camaro RS
Engine: 305 TBI
Transmission: 5 speed

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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.
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Last edited by Camaro RS; 09-23-2009 at 03:18 PM. Reason: forgot the complete package.
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Old 09-20-2009, 06:53 PM   #2
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Location: Greenville
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Car: 1991 formula
Engine: 350 tbi
Transmission: T-5
Axle/Gears: 308 posi

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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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1991 Formula conversion, 5spd swap, 350tbi with open element, tbi chip, hooker headers, flowmaster exhaust, cat delete, modified throttle body
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Old 09-20-2009, 08:32 PM   #3
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Car: 1990 Camaro RS
Engine: 305 TBI
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Re: 305 tbi to 350 tbi
sweet, thanks. so would the shorty headers beable to fit with out any problem?
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Old 09-21-2009, 10:58 AM   #4
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Car: 1991 formula
Engine: 350 tbi
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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
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1991 Formula conversion, 5spd swap, 350tbi with open element, tbi chip, hooker headers, flowmaster exhaust, cat delete, modified throttle body
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Old 09-21-2009, 02:09 PM   #5
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Car: 91 RS
Engine: 305tbi
Transmission: 700r4 2500TCI stall
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Re: 305 tbi to 350 tbi
How much did you spend on the injectors and chip for i also wanna do these swap
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Old 09-22-2009, 03:27 PM   #6
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Re: 305 tbi to 350 tbi
the chip was around $115 as for the injectors i got them for free from my friend
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1991 Formula conversion, 5spd swap, 350tbi with open element, tbi chip, hooker headers, flowmaster exhaust, cat delete, modified throttle body
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Old 09-22-2009, 03:58 PM   #7
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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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Old 09-22-2009, 05:36 PM   #8
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Re: 305 tbi to 350 tbi
Quote:
Originally Posted by charlielamb View Post
the chip was around $115 as for the injectors i got them for free from my friend
And that was all you bought for i could do that
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Old 09-22-2009, 11:45 PM   #9
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Re: 305 tbi to 350 tbi
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Originally Posted by five7kid View Post
Don't forget to install a pilot bearing in the crank for the transmission input shaft before installing the clutch/transmission.
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.
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Old 09-23-2009, 04:13 AM   #10
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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?
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Old 09-30-2009, 03:37 PM   #11
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Car: 1991 Camaro
Engine: 305TBI
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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?
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Old 09-30-2009, 09:38 PM   #12
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Engine: 305tbi
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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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Old 10-01-2009, 08:10 PM   #13
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Car: 1990 Camaro RS
Engine: 305 TBI
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Re: 305 tbi to 350 tbi
Quote:
Originally Posted by JR350tpi View Post
That's the excat swap i wanna do if you do it before me can you please pm how the swap went
which swap are you taling about? the one about your post or the original thread post?
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Old 10-01-2009, 09:23 PM   #14
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Join Date: Dec 2008
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Car: 91 RS
Engine: 305tbi
Transmission: 700r4 2500TCI stall
Axle/Gears: 2.73

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Re: 305 tbi to 350 tbi
The one you wanna do only with a L98 block
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Reload this Page 305 tbi to 350 tbi
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