High Performance Big Block Cadillacs
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Author Topic: new guy with questions  (Read 3841 times)
Renegade_500
C1
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Posts: 1


« on: April 01, 2009, 06:57:24 PM »

hey all,
i'm new to this site and the whole Cadillac scene. i have a 1978 Chevrolet C-10 that i've been wanting to put a cadillac 500 into my truck but i don't know what i'm getting into. i've read around on the internet and on here as well and i've come to the conclusion that these motors are pretty much building pullers. and i'd love to have one in my truck Grin. i know i'll be needing conversion mounts, headers and a transmission adapter plate (my truck already has the TH-400 needed). but i know its not that easy when doing a conversion, i'm still in the middle with another project that i'm trying to finish (s-10 v8 and yes i'm gonna finish this one before starting on my C-10) so is it worth it or am i a little over my head?
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midnitetrucker76
C1
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Posts: 11


« Reply #1 on: April 26, 2009, 12:52:00 PM »

Do the swap you'll be glad you did. I got a 472 in my 84 gmc crew cab 1-ton 4x2 that we use for pulling the toys to the mountains. I even pulled a loaded semi that weighted 103,000 pounds over 40 miles to home one time.  Yes crazy but what do you expect from a crazy farm boy. look at my other post about my blazer for engine mount ideas i think you could easily you the same frame pads and engine mount on your c-10. I wish I had known about these style mounts when i did the last two 2WD swaps. it would have been way quicker than making mounts for the stud style as i did. I have even change the rear main seal without pulling the engine in my gmc. I also use the easier to find mid sump 425 oil pan. in fact i've used the mid sump on all my swaps so far and theres been five of them. i love these engine even in stock form. On the 84 i did have to grind the upper frame flange about a 1/8"  to clear the stock exhaust manifold on the passenger side. not sure whats different from the 76 cause i didnt have to on it. You will be pretty wrapped out on the highway with the th400 and 4:10 gears though. I had 3:55 gears in my 76 and liked it alot better. But defenitly do the swap

regards
Ron
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shuckles
C1
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Posts: 7


« Reply #2 on: February 10, 2010, 08:10:32 PM »

Hi!
Definitely do the swap! I have rode around in a buddy's '80 chev with a 500 in it. WOW! If u can swap a V8 into an S10 you can swap a caddy into your chev. I think it is an easier swap. I am putting a 472 into my '86 chev shortbox 2wd and it has been relatively easy so far. It's like it was meant to be there. I got the motor for 125 bucks and the th400 came with it. My tranny in the truck was a short tailshaft unit already so I had no issues there. As for motor mounts i used the sbc mounts and engine plates and welded the caddy mount tabs to the plates. I had to slide the perches ahead about 3.5 inches on the frame and evrything just dropped right in.
Good luck and have fun!

Sjac
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