Olds 307 to Chevy 350 swap in 89 Cadillac brougham
February 28th, 2018, 10:31 PM
#1
Registered User
Thread Starter
Join Date: Sep 2017
Posts: 3
Olds 307 to Chevy 350 swap in 89 Cadillac brougham
I'm doing a swap on my Cadillac and wondering can I get motor mounts for a 90-92 brougham and driveshaft is there anything else I need. The Chevy motor is complete with trans. Help would be greatly appreciated
March 1st, 2018, 12:14 AM
#2
ph_ckstick1
Join Date: May 2017
Posts: 450
So yes the mounts, and all the engine parts for a small block chevy 90-2 will work.(note the 89 is computer controlled carb, the 90 up is TBI EFI)
You might want to when you get the mounts/engines stands. get the engines front dress and brackets, The exhaust manifolds, and front y pipe.the rad. shroud and fan, radiator if different from the 307 one.
The cruise control parts, and if it matters emission equipment parts if you need to pass smog.
If both your 89 and the donor 90-92 both have the same transmission IIRC it should be the 2004r in both. you should be able to use the driveshaft under your car.
If this needs to have the emissions equipment on it and working and check engine light not on . This swap will be a royal pain and you might want to rethink it.
Your 89 should be a CCC q-jet. if you plan on reusing it. You'll need to see if the needles and seats are different on the optional 350 chevy that was offered in 90-92.
The ecu prom chip might not have the correct timing and such for a 43 cube larger engine. The stock one back then made a whopping 170 h/p so if your 350 has more than that. plan on at least needing to change the needle/seats in the CCC. if no need passing smog/ emissions test and plan on using a standard carb, and not computer controlled. than you don't need to worry about the ecu and prom chip in it.
As it'll most likely be lean.
March 1st, 2018, 06:58 AM
#3
Registered User
Thread Starter
Join Date: Sep 2017
Posts: 3
The 90-92 brougham is a g.m. d body. The 89 is a "d" platform.
So yes the mounts, and all the engine parts for a small block chevy 90-2 will work.(note the 89 is computer controlled carb, the 90 up is TBI EFI)
You might want to when you get the mounts/engines stands. get the engines front dress and brackets, The exhaust manifolds, and front y pipe.the rad. shroud and fan, radiator if different from the 307 one.
The cruise control parts, and if it matters emission equipment parts if you need to pass smog.
If both your 89 and the donor 90-92 both have the same transmission IIRC it should be the 2004r in both. you should be able to use the driveshaft under your car.
If this needs to have the emissions equipment on it and working and check engine light not on . This swap will be a royal pain and you might want to rethink it.
Your 89 should be a CCC q-jet. if you plan on reusing it. You'll need to see if the needles and seats are different on the optional 350 chevy that was offered in 90-92.
The ecu prom chip might not have the correct timing and such for a 43 cube larger engine. The stock one back then made a whopping 170 h/p so if your 350 has more than that. plan on at least needing to change the needle/seats in the CCC. if no need passing smog/ emissions test and plan on using a standard carb, and not computer controlled. than you don't need to worry about the ecu and prom chip in it.
As it'll most likely be lean.
So yes the mounts, and all the engine parts for a small block chevy 90-2 will work.(note the 89 is computer controlled carb, the 90 up is TBI EFI)
You might want to when you get the mounts/engines stands. get the engines front dress and brackets, The exhaust manifolds, and front y pipe.the rad. shroud and fan, radiator if different from the 307 one.
The cruise control parts, and if it matters emission equipment parts if you need to pass smog.
If both your 89 and the donor 90-92 both have the same transmission IIRC it should be the 2004r in both. you should be able to use the driveshaft under your car.
If this needs to have the emissions equipment on it and working and check engine light not on . This swap will be a royal pain and you might want to rethink it.
Your 89 should be a CCC q-jet. if you plan on reusing it. You'll need to see if the needles and seats are different on the optional 350 chevy that was offered in 90-92.
The ecu prom chip might not have the correct timing and such for a 43 cube larger engine. The stock one back then made a whopping 170 h/p so if your 350 has more than that. plan on at least needing to change the needle/seats in the CCC. if no need passing smog/ emissions test and plan on using a standard carb, and not computer controlled. than you don't need to worry about the ecu and prom chip in it.
As it'll most likely be lean.
March 1st, 2018, 02:07 PM
#4
Registered User
Join Date: Jun 2017
Location: Central Florida
Posts: 57
I have an '89 Brougham but I am pulling my Olds 307 for an Olds 350. Swap is much easier when sticking with Olds.
For you, you need to get Motor mounts from a 91-92 brougham and I think the fuel line runs on opposite side of frame. If you google Cadillac Brougham 350 swap you will find your answer- swap is done a lot
For you, you need to get Motor mounts from a 91-92 brougham and I think the fuel line runs on opposite side of frame. If you google Cadillac Brougham 350 swap you will find your answer- swap is done a lot
March 1st, 2018, 04:44 PM
#5
Registered User
Thread Starter
Join Date: Sep 2017
Posts: 3
I have an '89 Brougham but I am pulling my Olds 307 for an Olds 350. Swap is much easier when sticking with Olds.
For you, you need to get Motor mounts from a 91-92 brougham and I think the fuel line runs on opposite side of frame. If you google Cadillac Brougham 350 swap you will find your answer- swap is done a lot
For you, you need to get Motor mounts from a 91-92 brougham and I think the fuel line runs on opposite side of frame. If you google Cadillac Brougham 350 swap you will find your answer- swap is done a lot
Thread
Thread Starter
Forum
Replies
Last Post
Garypolds
Non-Oldsmobile Classified
1
March 18th, 2018 02:06 PM
GHOSTOWLGRID
General Discussion
4
May 11th, 2016 12:09 PM
fritzvis
Small Blocks
15
February 28th, 2016 05:48 AM
Sanghi
Small Blocks
15
June 2nd, 2015 03:48 PM
