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Cadillac/best engine swap


goaliecan wrote at 2009-09-02 23:20:44
Both the HT4100 and the THM 200 4R trans need to be replaced. Neither where very good. I too had an HT4100. I bought a TBI 350 from a early 90's pickup. It is a pretty easy swap. you need to purchase a harness and TBI computer from Howell engine development. I kept the 200 4R tranny as well but had it rebuilt by Bowtie overdrives. runs great. you do lose the mpg feature from the caddy computer but at least you have a solid engine.

JC wrote at 2010-11-26 03:02:50
Not exactly true.  I put a 4.1 where a 4.5 used to be.  I put in a1987 4.1 in a 1988 4.5 coupe deville.  The computers work for the 4.1 or 4.5 motors.  works on mine will work for you too.  I simply used everything from the 4.5 motor so all components plugged in.  simple

Kelly Nord wrote at 2013-11-10 13:50:48
your engine can be swapped,I OWN AN82 FORMAL 6 door stretch limo,and my conversion is to a 5.7 litre olds big block rocket. You will lose the computer functions,however,but this was done on my old stretch before I bought it in Winnipeg.It is aFORMER EMBASSY CAR FROM L.A.


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Tom Joy


Have expertise from 1960 thru 1999 CADILLAC'S in carb, fuel injection, brakes, suspension, CHECK ENGINE lights, ignition, transmission, A/C and heating, Electrical problems and all electronic components. if maxed out you can contact me at:

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