TB Interchangeability?
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Joined: May 2003
Posts: 663
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From: Runnin' from the Reaper
Car: 91 B4C/91 RS 305
Engine: L98 and L03
Transmission: 2xTH700R4
Axle/Gears: 3.23 LSD/2.73 Open
TB Interchangeability?
Will a TB from an 85 Caddy Sedan deVille 4.1L work on a 305? I recently came across one for free so I took it. Is it any good?
Joined: Feb 2001
Posts: 13,758
Likes: 560
From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
I belive the base is the same but I am not sure about the injectors or regulator. The base would be the same size as stock with the smaller bores. The 454 unit is the only GM unit that is of any value.
Thread Starter
Senior Member
Joined: May 2003
Posts: 663
Likes: 1
From: Runnin' from the Reaper
Car: 91 B4C/91 RS 305
Engine: L98 and L03
Transmission: 2xTH700R4
Axle/Gears: 3.23 LSD/2.73 Open
so I would have to bore it out to get the same size as the stocker, too much work for me. I guess that i'll just stick w/ the stocker and do the ultimate mods to it.
Joined: Feb 2001
Posts: 13,758
Likes: 560
From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by darkhorse91
so I would have to bore it out to get the same size as the stocker, too much work for me. I guess that i'll just stick w/ the stocker and do the ultimate mods to it.
so I would have to bore it out to get the same size as the stocker, too much work for me. I guess that i'll just stick w/ the stocker and do the ultimate mods to it.
Thread Starter
Senior Member
Joined: May 2003
Posts: 663
Likes: 1
From: Runnin' from the Reaper
Car: 91 B4C/91 RS 305
Engine: L98 and L03
Transmission: 2xTH700R4
Axle/Gears: 3.23 LSD/2.73 Open
the bores are the same but the connections aren't all the same & one of the vacuum hookups is busted. Well it looks like I have a practice TB for when I decide to do the ultimate TBI mods.