: 74 472/TH400 into 65 Calais?



gold01ca
05-28-13, 06:26 PM
Just wondering if this would be a straight "drop in"?
I have a 74 Fleetwood with rotted frame and there is a 65 Calais for sale locally; good body/frame but needs drive train and rad.
Help/advice appreciated.
The 65 is headed to the crusher if not sold after next weekend.

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Has anyone done this swap?
It appears the Calais didnt get the 472 until 68 and the 65 had the 429.

cadillac_al
05-28-13, 07:02 PM
I wouldn't think it would be too hard. You would think it would be a drop in since the 67 and 68 are practically the same car and one had the 429 and the 68 had a 472. You would think the frame mounts would be the same but I don't recall seeing hardly any 472's in those early 60's Caddys. somebody should come along with a definite answer. I hope they hurry up because I always hate to see classic Caddys getting crushed.

gold01ca
05-28-13, 07:49 PM
Thanks Al,
The 472 came out in 68 I believe.

Anyone else?
Feel free to offer any advice/insight.

BRUCE ROE
05-28-13, 10:08 PM
Possibly your car already has a TH400 (switch pitch). If so, you are better than
half way home. Check for the vacuum mod on the right, or the P-R-N-D-2-1 pattern.
Bruce Roe

gold01ca
05-28-13, 11:20 PM
Bruce,
My car (74 Fleetwood) has the shift pattern as you describe.
You figure the 74 472/TH400 should drop into the 65 Calais chassis?

Thanks,
Glen

drmenard
05-29-13, 07:05 PM
He knows the 74 has a th400 , he was asking if the 65 had that shift pattern...

BRUCE ROE
05-29-13, 11:35 PM
If the 65 already has a TH400, its far simpler than conversion from a Hydramatic. However, a
65 doesn't bolt to a 472, and the 74 TH400 may have a different tail section length. Taking the
2 TH400s apart will allow assembly of one that fits the 65 body & the 74 engine. If original, its
way overdue for a new $28 seal kit, even if working fine. I'd recommend keeping the 65 switch
pitch function. Bruce Roe