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#722762 - 09/11/09 10:00 PM Pics of my 500 caddy swap  
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marksSS Offline
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marksSS  Offline
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Cortland,OH
maybe this can help someone who's thinking about a 472/500 caddy swap in a monte! Mine is a 500ci in my 86 SS!








also threw in an 8.5 rear, solid lowers and adjustable uppers!


1986 Monte Carlo SS 500ci on juice "Cadillac Power"
1975 Olds Cutlass Supreme
#722765 - 09/11/09 10:07 PM Re: Pics of my 500 caddy swap [Re: marksSS]  
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70 ELCO Offline
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BALTIMORE MARYLAND
Been thru the same hell. I did a 472 into a 78 el camino. Borgeson makes a weld in u joint for the steering that will help you out alot. If you want i can find the part number i used. Looks like a nice install to. Have fun they are beasts and your u joints will never forgive you. There ain't nothin like big cadillac torque.

#722799 - 09/11/09 11:56 PM Re: Pics of my 500 caddy swap [Re: 70 ELCO]  
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MrTurboHappy Offline
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Cuyahoga Falls,OH
wow... those mani's are close the arms... stock ones wont fit, is that why you went with tube types?


1983 Buick Regal: 11sec build
1984 Buick T-Type: Sold, Roller parts car
1983 Monte Carlo SS: Sold to my dad
1987 Monte Carlo SS: Sold, Parts car
1980 Olds Cutlass: Sold, Floor donor car
1988 Monte Carlo SS: Sold R.I.P. frame rot
#722803 - 09/12/09 12:05 AM Re: Pics of my 500 caddy swap [Re: MrTurboHappy]  
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marksSS Offline
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Cortland,OH
actually i never tried the factory ones. i already had the tubes on for weight reduction. i'll be doing the lowers this winter. i started off with solid motor mounts from MTS in california. its a true bolt in deal. well kind of! LOL! still needed to do some pushing and pulling and prying to get it in there.

thanks elco. ya if you can come up with the part number that would be great.

i have a 150 shot of nitrous that i'm working on too!


1986 Monte Carlo SS 500ci on juice "Cadillac Power"
1975 Olds Cutlass Supreme
#722830 - 09/12/09 01:07 AM Re: Pics of my 500 caddy swap [Re: marksSS]  
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MrTurboHappy Offline
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Cuyahoga Falls,OH
looks nice tho! i seen a 472 in a MCSS on ebay about 3 or 4 years ago & now yours.... makes me want to do the same thing down the road... way down lol but none the less i really like the swap exp when that motor only is 40 pounds heavier then a sbc.


1983 Buick Regal: 11sec build
1984 Buick T-Type: Sold, Roller parts car
1983 Monte Carlo SS: Sold to my dad
1987 Monte Carlo SS: Sold, Parts car
1980 Olds Cutlass: Sold, Floor donor car
1988 Monte Carlo SS: Sold R.I.P. frame rot
#722833 - 09/12/09 01:19 AM Re: Pics of my 500 caddy swap [Re: MrTurboHappy]  
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70 ELCO Offline
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BALTIMORE MARYLAND
Ok Mark the borgeson part number was 014364 and it is a 3/4" smooth bore on the box side and a 1" diameter 46 spline on the column side. If i remember correctly i had to shorten the shaft by 1 1/4" but measure yours to be sure. Once i cut the double d coupler open and got the cross shaft out i found that the end of the shaft was flat on 2 sides and of course had a hole for the cross shaft to pass thru. So i cut that off and when i had it fitting the way i wanted it i welded it up with a mig. You have to be careful to keep the heat under control while welding it so you don't over heat the bearings and seals in the u joint but it worked out great.

Also i kept the stock upper arms on mine with out a problem

Last edited by 70 ELCO; 09/12/09 01:21 AM.
#722895 - 09/12/09 04:17 AM Re: Pics of my 500 caddy swap [Re: 70 ELCO]  
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BuzzLOL Offline
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Toledo, Ohio
.. Yes, nice torque, but a 400 SBC will HP out easier...


'86 Monte LS (total'd Fall '2013), '87 GTA TransAm TPI350 TH700-R4, '85 Fiero 5-speed, '75 MG Midget Buick Alum.V8 BW 5-speed manual, '77 Pontiac Astre Formula wagon 5-speed posi, '78 F150 4WD 351"M ==> 400" C6, '79 Caddy Seville Olds EFI 350" TH400, 19' Slickcraft 425HP 351W MerCruiser I/O
#722963 - 09/12/09 01:39 PM Re: Pics of my 500 caddy swap [Re: BuzzLOL]  
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MY FYN 79 Offline
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N/E WI
Nice swap! Ever consider getting some headers in there to let that big beast breath?

I have one of the high compression 500s sleeping for a project someday. Buzz, if high HP is the goal the big Caddy isnt the right choice without a lot of money. If you want big torque on the cheap though, aint no SBC outdoing the Cad!!


~Jeremy~
79 Monte - Sold 5-11-13
Welcome Natalee Mae 3-16-12
#722980 - 09/12/09 02:30 PM Re: Pics of my 500 caddy swap [Re: MY FYN 79]  
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SS402 Offline
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Beaverton, Oregon
Outstanding swap, torque city 4 sho..


George
Monte, Gone but not forgotten

The More I Learn About Dogs
The Less I Like About People
#722983 - 09/12/09 02:38 PM Re: Pics of my 500 caddy swap [Re: MY FYN 79]  
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marksSS Offline
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Cortland,OH
oh ya, i definitely want some headers. me and sideways(John) are going to build a set for it. a couple places i called wanted 1200-1500 for a set.

next year we are going to try a twin turbo install on this beast. maybe just a single, not 100% sure yet!


1986 Monte Carlo SS 500ci on juice "Cadillac Power"
1975 Olds Cutlass Supreme
#722985 - 09/12/09 02:40 PM Re: Pics of my 500 caddy swap [Re: SS402]  
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84supersport Offline
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Louisville, KY
Most deffinately different. Whats the coolant line running to the back side of the motor for? I know squat about caddy motors. It would be cool if you found a caddy emblem at a junkyard to put on top of your aircleaner. It will draw some attention at cruises.


84 Monte SS stolen September 2012. 077 DFE Jefferson County KY plate. $2500 reward. Vortec headed 350ci, th350, 3:73 limited slip cast aluminum cover, Autometer gauges, Pro-Stick, 2.5" fiberglass hood.



Matt
#722986 - 09/12/09 02:41 PM Re: Pics of my 500 caddy swap [Re: marksSS]  
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MY FYN 79 Offline
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N/E WI
IIRC, people were using a certain Hooker BBC header and welding the Cad flanges on them. Might be worth looking into and save a few bucks.

Keep us up to date how the swap goes and runs!


~Jeremy~
79 Monte - Sold 5-11-13
Welcome Natalee Mae 3-16-12
#722998 - 09/12/09 03:08 PM Re: Pics of my 500 caddy swap [Re: MY FYN 79]  
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marksSS Offline
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Cortland,OH
the hose out of the back of the head is suppose to go to the heater core inlet then the outlet from the heater core to the fitting on the radiator. right now i just have the hose running to the radiator. i have an aftermarket heater setup i need to install.
ya i read about the BBC header thing. they use BBC headers for a G-body cut the flanges off and weld on the caddy flanges. some tweeking needs to be done to the tubes to make them fit, but i guess it does work!


1986 Monte Carlo SS 500ci on juice "Cadillac Power"
1975 Olds Cutlass Supreme
#723015 - 09/12/09 03:36 PM Re: Pics of my 500 caddy swap [Re: marksSS]  
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supernova455 Offline
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tampa, fl usa
I like that! What year is that motor?

Supernova455

#723034 - 09/12/09 04:24 PM Re: Pics of my 500 caddy swap [Re: supernova455]  
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marksSS Offline
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Cortland,OH
its a 76!


1986 Monte Carlo SS 500ci on juice "Cadillac Power"
1975 Olds Cutlass Supreme
#723060 - 09/12/09 06:13 PM Re: Pics of my 500 caddy swap [Re: marksSS]  
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MrTurboHappy Offline
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Cuyahoga Falls,OH
any vids of it running?


1983 Buick Regal: 11sec build
1984 Buick T-Type: Sold, Roller parts car
1983 Monte Carlo SS: Sold to my dad
1987 Monte Carlo SS: Sold, Parts car
1980 Olds Cutlass: Sold, Floor donor car
1988 Monte Carlo SS: Sold R.I.P. frame rot
#723066 - 09/12/09 06:33 PM Re: Pics of my 500 caddy swap [Re: MrTurboHappy]  
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marksSS Offline
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Cortland,OH
not yet. i will get some though.


1986 Monte Carlo SS 500ci on juice "Cadillac Power"
1975 Olds Cutlass Supreme
#723070 - 09/12/09 06:59 PM Re: Pics of my 500 caddy swap [Re: marksSS]  
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Lake Hamilton
Did you use the Eldorado oil pan? I fished out 250 for that sucker on Ebay a few years back. Which kit did you use for the bellhousing adapter? Did you relocated the stanchions on the converter or use a custom flywheel, assuming you didn't use the Caddy 400 that is. I have a turbo charged 500 sitting on a stand but am waiting on funds for a Moser rearend. Do you think a 8.5 will hold up to the naturally asperated torque your putting out now? Have you upgraded to the thousand dollar valvetrain yet? I have read the stock shafts don't like any performance mods at all.


83' GP LJ T-Tops CCC Rochester Controlled Vortec Headed ZZ4/700r4/373,
82' GMC Suburban 4x4 454/TH400/NP205/33"BFG's,
82' S10 Tahoe HT 3.4 Clone,
06' GP Daily
#723074 - 09/12/09 07:42 PM Re: Pics of my 500 caddy swap [Re: Shaun4BigBlocks]  
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marksSS Offline
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Cortland,OH
i used the eldo pan but it still had to be clearanced to fit. the front of the pan hit the centerlink and the drain bolt on the shallow sump also had to be clearanced, it hit the A-frame. i went with the B.O.P th400. we had to use the larger bolt pattern on the caddy flexplate and elongate the whole about an 1/8th inch. ya the 8.5 should hold up fine. the buick GN can throw down gobs of torque and HP with this rear so we should be fine too. i would have to say that the weakest link would be the factory rods then the rockers. i've spec'ed out the ones i want, about $500.00. not as bad as i thought they would be.

i also went with an oil filter relocation kit. the stock one will hit the sway bar. i also had problems with the balancer hitting the sway bar. so we put on a sway bar from a 90's WS6 trans am. it has a nice dip right in the middle. works perfect. but we also changed the sway bar frame bushings too.


1986 Monte Carlo SS 500ci on juice "Cadillac Power"
1975 Olds Cutlass Supreme

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