ClassicOldsmobile.com  

Go Back   ClassicOldsmobile.com > General > General Discussion
Sign in using an external account
Register Forgot Password?
Search
General Discussion Discuss your Oldsmobile or other car-related topics.

Welcome to Classic Oldsmobile Forum!
Welcome to Classic Oldsmobile forum,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to start new topics, reply to conversations, privately message other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join Classic Oldsmobile Forum today!


Reply
 
 
 
submit to reddit
 
LinkBack Thread Tools Search this Thread Display Modes
Old April 9th, 2008, 08:09 AM   #1
Cutlass83
 
Join Date: Mar 2008
Location: Michigan
Posts: 6
v6 to v8 swap

First off, great site.

I have an 83 Cutlass Supreme, 3.8L v6 and my goal is to upgrade to a 5.0 or more. I was wondering if anyone on here did it or knows someone that has done this. What will I need and what parts can I salvage from the v6 application?
Cutlass83 is offline   Reply With Quote
Old April 9th, 2008, 01:23 PM   #2
Landyacht Club President
 
Olds64's Avatar
 
Join Date: Jul 2007
Location: Lawton, OK
Posts: 7,336
The 5.0 L engine is generally used to refer to the Ford 302. Oldsmobile offered a 5.1 L engine that was actually a 307. You can find a 307 in practically any 80s or early 90s Cutlass (as long as it has a V8), Delta 88, 98, or Custom Cruiser. However, most people here will tell you that for a mild performance build you will be much happier with a 350 or 403. Externally, there is no difference between the 307, 350, and 403 (besides color).

I suggest you find an Olds 350. These can be found in 70s Oldsmobiles like the Cutlass and Delta 88. The good thing about Oldsmobile engines is that your car will be a perfect fit for an Olds 350. The biggest obstacle will be upgrading your transmission. Currently, your car probably has a 200 4R, 4 speed automatic. These are good transmissions; however, it might have to be beefed up to withstand the output of a mildly built 350.
__________________
1971 Oldsmobile 98
2011 Ford Flex
Olds64 is offline   Reply With Quote
Old April 9th, 2008, 03:28 PM   #3
Seasoned beater pilot.
 
J-(Chicago)'s Avatar
 
Join Date: Jan 2007
Location: Chicago
Posts: 5,436
That 3.8 is a Buick motor. You could drop a Buick 350 right onto those mounts in your car.

If you wanted to convert to Oldsmobile powered, you would need to get new frame mounts off of a donor car that had an oldsmobile engine in it. Also would have to re route the transmission lines and some wiring.
__________________
http://classicoldsmobile.com/forums/image.php?type=sigpic&userid=3231&dateline=1261736  390
J-(Chicago) is offline   Reply With Quote
Old April 11th, 2008, 05:20 AM   #4
Cutlass83
 
Join Date: Mar 2008
Location: Michigan
Posts: 6
Yeah, it was built by Buick, so does that mean I'm limited to Buick motors only? A chevy motor wouldn't work?
Cutlass83 is offline   Reply With Quote
Old April 11th, 2008, 12:22 PM   #5
Seasoned beater pilot.
 
J-(Chicago)'s Avatar
 
Join Date: Jan 2007
Location: Chicago
Posts: 5,436
A Chevy would work if you found the Chevy frame and engine mounts from an 80's monte carlo. Again, you will have to re route some stuff,
AND.... get a new transmission with a Chevy bolt pattern. Buick/olds trans wont work
__________________
http://classicoldsmobile.com/forums/image.php?type=sigpic&userid=3231&dateline=1261736  390
J-(Chicago) is offline   Reply With Quote
Old April 11th, 2008, 01:33 PM   #6
Registered User
 
The_Jeremiah's Avatar
 
Join Date: Jul 2007
Posts: 696
you should definently go olds or buick, it will cost more, but you will be happier in the long run
__________________
74 Omega - 455 / T-56 / Ford 9" - in progress - follow it! http://classicoldsmobile.com/forums/...ga-thread.html

91' Jeep Wrangler - daily driver
84' Honda Shadow - only 15k miles - for sale
79 Jeep CJ-5, bringing it home soon
The_Jeremiah is offline   Reply With Quote
Old April 13th, 2008, 06:50 AM   #7
Cutlass83
 
Join Date: Mar 2008
Location: Michigan
Posts: 6
Would a 350 from a 70 Skylark drop right in there?
Cutlass83 is offline   Reply With Quote
Old April 13th, 2008, 06:50 AM
ClassicOldsmobile
1957 Oldsmobile




Paid Advertisement
 
 
 
submit to reddit
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Jetaway swap? dallas6778 Transmission 5 October 15th, 2008 10:59 AM
66 or 67 parts swap red rocket Chassis/Body/Frame 6 October 25th, 2007 08:02 AM
swap wagonman Other 10 April 23rd, 2007 05:46 AM
Should I swap <Don P.> Small Blocks 1 January 8th, 2005 10:46 AM
Motor Swap ???? olds88 Cars For Sale 0 January 4th, 2004 07:56 PM


All times are GMT -7. The time now is 05:42 AM.


Advertising - Privacy Statement - Terms of Service - Jobs
All content Copyright 2008 by Internet Brands, Inc.