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Old 07-20-2010, 06:01 AM
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38 Caddy flathead

I've got a 38 Caddy limo with V-8 flathead that evidently has a cracked block. Overheats and everything else has been eliminated as a possible problem. No other evidence of a cracked block but that's the only thing left. Any advice on a flathead rebuilder par excellent in the South-Southwest? Oklahoma, Texas, etc. Not really interested in someone who's always wanted to tackle a flathead, but want someone who knows what they're doing. If I find a Ford specialist is it a huge jump to rebuild a GM product? Thanks for any advice.
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Old 07-20-2010, 02:42 PM
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Obviously you're going to REALLY have to find out whats wrong with the engine which will require a complete tear down. If the block is cracked you'll have 2 choices...get it repaired by a very good reputable shop, or try to find a replacement. I know a shop in So. Cal. that can do it but it ain't cheap!!

I would first look on Hemming's Motor News for a block or call "Cad Parts", www.cad500parts.com, they deal in high perf. OHV Cad engines but they may have a sourse....And if you have the knowledge and the $$$$$ you might think of dropping a 472/500 in there with a built T-400 or 700R4. Would be very sweet!! I guess that makes 3 choices....Good luck.
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Old 07-20-2010, 04:34 PM
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Quote:
Originally Posted by okierodder
I've got a 38 Caddy limo with V-8 flathead that evidently has a cracked block. Overheats and everything else has been eliminated as a possible problem. No other evidence of a cracked block but that's the only thing left. Any advice on a flathead rebuilder par excellent in the South-Southwest? Oklahoma, Texas, etc. Not really interested in someone who's always wanted to tackle a flathead, but want someone who knows what they're doing. If I find a Ford specialist is it a huge jump to rebuild a GM product? Thanks for any advice.
You know, there are literally hundreds of good minds on this board that tune in every day. Perhaps if you would start at the beginning and detail the whole scenario, someone of us may have lived through the exact problem you are having.

Otherwise, disassemble the motor and have the block magnafluxed for cracks. If it's found to be cracked, then there are expert shops that can fix it. Here's one I googled and looks like they can fix most anything that's cast iron....
http://midwestcylinderhead.com/
Should be a nice trip up through Iowa this time of year, but I wouldn't wait until winter.
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Old 07-20-2010, 05:54 PM
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I have done several flat head Caddy's.. YES a Ford man would have trouble.. The Caddy is a horse of a very different color. Lifters are held in with bolt on castings. Rods/Mains are completely different design..Much more heavy duty engine than the Ford..
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