The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1947 - 1959 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 03-02-2018, 11:10 AM   #1
cff
Active Member
 
Join Date: Feb 2014
Location: langley BC
Posts: 158
51 GMC Engine Swap

Hi. I have a 51 GMC with a 228 in it. I was thinking of swapping in a 250 six cylinder. Will the 250 bolt right in? If not what do I have to do to fit it in? thanks, Ron.
cff is offline   Reply With Quote
Old 03-02-2018, 11:36 AM   #2
whitedog76
Registered User
 
Join Date: Jan 2014
Location: Peoria, IL
Posts: 1,450
Re: 51 GMC Engine Swap

No, it will not swap right in.

The The pre-62 GMC Chevy's had a different bellhousing than the later 6's. Plus they mounted different.

Long story short... You would have to come up with some engine and trans mounts to make it work.
whitedog76 is offline   Reply With Quote
Old 03-03-2018, 08:20 AM   #3
Katrina/10
Registered User
 
Katrina/10's Avatar
 
Join Date: Oct 2010
Location: Ocean Springs, MS
Posts: 1,746
Re: 51 GMC Engine Swap

A 235 Chevrolet engine will bolt to the bellhousing, but you will have to fabricate a front mount.
__________________
Gary

1971 Chevrolet C/10
1951 GMC 100
1977 GMC C15
1955 Chevrolet 3100
Katrina/10 is offline   Reply With Quote
Old 03-03-2018, 11:04 AM   #4
whitedog76
Registered User
 
Join Date: Jan 2014
Location: Peoria, IL
Posts: 1,450
Re: 51 GMC Engine Swap

There’s a few options out there. The simplest is some side mount motor mounts and a trans crossmember.

Of course, you’ll need a transmission with the GM V8 style bellhousing.

You can cut and weld up your own engine mounts. Chassis Engineering used to have engine mounts, but since they’ve been bought by Heidt’s, I don’t know if their inventory is still available.

Jimenez Brothers have mounts for Chevy Sedans. Should be able to modify for trucks.

https://www.jimenezbroscustoms.net/p...g-kit-complete
whitedog76 is offline   Reply With Quote
Reply

Bookmarks


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

Forum Jump


All times are GMT -4. The time now is 09:01 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com