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 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 09-19-2013, 10:34 PM   #1
79 blue monster
Registered User
 
79 blue monster's Avatar
 
Join Date: Feb 2012
Location: Pulaski, Wi
Posts: 491
cadillac 500 swap

Aright, so I bought a Cadillac 500 to take the place of my 454. Anybody know what to do to get this thing to fit? I converter to hydro boost brakes so my booster doesn't hit my valve cover. My problem is after I drilled new holes an inch forward in my trans cross member, the head on the driver side still sits about 1 millimeter from my firewall. Plus I'm stumped on my engine mounts. I've read that you have to make extension plates, or I've read that you have to move the original mounting plates further forward on your frame. Anyone that has done this and has pictures or knows about this stuff please help!!!
__________________
1979 GMC 3/4 ton camper special 454 (7/8in drop) UPDATE: CADDILAC 500 SWAP AND 4X4 SWAP
http://67-72chevytrucks.com/vboard/s...d.php?t=518625
1965 gmc 4x4 build : http://67-72chevytrucks.com/vboard/s...d.php?t=724972
79 blue monster is offline   Reply With Quote
Old 09-20-2013, 08:17 AM   #2
Hertzdaddy
Registered User
 
Join Date: Oct 2008
Location: Montpelier, VA
Posts: 315
Re: cadillac 500 swap

Welcome to the Caddy club!

If you are using stock Caddy valve covers you should be able to keep the stock brake system and leave the trans in the stock location. To clear the firewall just cut a couple of slots in the firewall seam and bend it down where it hits the head. If you move the engine too far forward you may have interference issues with the oil filter and the forward crossmember (near the steering box). Tilt of the engine makes a big difference in firewall clearance too.

As for mount location, there are a couple of options detailed here http://www.cadillacpower.com/forum/v...15256&start=20 Scroll down to the bottom of the page.
Hertzdaddy is offline   Reply With Quote
Old 09-21-2013, 11:31 AM   #3
gchemist
BAD BOW-Silverado XST
 
gchemist's Avatar
 
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
Re: cadillac 500 swap

Buy some brackets: http://www.mtscadparts.net/servlet/t...wap-Kit/Detail

Info: http://www.cad500parts.com/parts.htm
http://www.500cid.com/Store%20Home.htm
__________________
Gerardo a.k.a. Mad Chemist
Silverado XST videos
gchemist is offline   Reply With Quote
Old 09-21-2013, 07:21 PM   #4
Hertzdaddy
Registered User
 
Join Date: Oct 2008
Location: Montpelier, VA
Posts: 315
Re: cadillac 500 swap

Those brackets are not needed. Its been done a bunch of times without them. Those brackets are good for a g-body transplant though.
Hertzdaddy 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 12:55 AM.


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