305 to 350
Re: 305 to 350
Wouldn't you just be able to swap the engine right in? Maybe get larger injectors to run the 350 vs a 305 if you plan on running TBI? The computer might not run the 350 completely right, but it should run it, its not that big of a change I don't think if you plan on keeping the TBI. Considered doing this if I ever replace the 4.3L in my S10 to a 305 or 350...
Supreme Member
Joined: Sep 2002
Posts: 9,192
Likes: 19
From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: 305 to 350
1)
- there's a hundred threads on this, and the search function works great
The basics ...
350 injectors, chip from a 350 car (caprice), 350 knock sensor, (assuming you are keeping TBI setup), and ....
2 months to make it all happen - everyone wants to swap motors on a daily driver, then they all complain because they didn't finish in a weekend. You can't do it in a weekend, or even a week - you need time.
- there's a hundred threads on this, and the search function works greatThe basics ...
350 injectors, chip from a 350 car (caprice), 350 knock sensor, (assuming you are keeping TBI setup), and ....
2 months to make it all happen - everyone wants to swap motors on a daily driver, then they all complain because they didn't finish in a weekend. You can't do it in a weekend, or even a week - you need time.
Thread Starter
Junior Member
Joined: Sep 2011
Posts: 10
Likes: 0
From: ark
Car: 89 camaro
Engine: 305 tbi
Transmission: auto stock
Axle/Gears: stock
Re: 305 to 350
some guy told me i have to get upgrade trannys cause the 350 will break the tranny cause of so much power
Last edited by 89camarojoeb; Sep 6, 2011 at 12:38 AM.
Re: 305 to 350
1)
- there's a hundred threads on this, and the search function works great
The basics ...
350 injectors, chip from a 350 car (caprice), 350 knock sensor, (assuming you are keeping TBI setup), and ....
2 months to make it all happen - everyone wants to swap motors on a daily driver, then they all complain because they didn't finish in a weekend. You can't do it in a weekend, or even a week - you need time.
- there's a hundred threads on this, and the search function works greatThe basics ...
350 injectors, chip from a 350 car (caprice), 350 knock sensor, (assuming you are keeping TBI setup), and ....
2 months to make it all happen - everyone wants to swap motors on a daily driver, then they all complain because they didn't finish in a weekend. You can't do it in a weekend, or even a week - you need time.
Joined: Mar 2000
Posts: 43,187
Likes: 42
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
Trending Topics
Supreme Member




Joined: Oct 2004
Posts: 4,526
Likes: 238
From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: 305 to 350
Not the stock auto. A lot of people run the 700R4 behind 350s
Moderator
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Supreme Member
Joined: Sep 2002
Posts: 9,192
Likes: 19
From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: 305 to 350
However, it is quite possible that the new added torque/power of the 350 motor will make the old tranny slip almost immediately. This happened to me - my tranny worked perfectly (as best as I could tell) behind the stock 305 - but the instant the 350 went in, it slipped, and I had to get a rebuild.
Joined: Mar 2000
Posts: 43,187
Likes: 42
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
"Rebuild" is not the same as "upgrade". "Slip" is not the same as "break".
Supreme Member




Joined: Oct 2004
Posts: 4,526
Likes: 238
From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Thread
Thread Starter
Forum
Replies
Last Post






