Thread: ford c6 variations and HP rebuilds

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hello people!
well, after I finished up, building my engine...with a certain degree of satisfaction It's now time to put some strain and effort in the transmission!

What I have, is a genuine 1966 casting C6 with FE bellhousing. Now, what I want to know is, how much do the C6 castings differ, over the years they were made?
For instance:
I got a remark this week, that a new "Superior super servo" wouldn't fit my '66 casting and there is no other servo upgrade either (the Ford's R-code version, is what I would like to use) for this casting?

I'm not going to blast a 1000HP at it, but I would like a HP-rebuild, with an all-over better performance, capable of handling around 500 HP and mainly street use. (I.E. no transbrake or full manual, but firmer shifts and the lower gearratio as well!)
I got the advice that a '66 casting isn't what you want to have for this kind of a rebuild...

problem is, it's what I have...and living in the netherlands, means; either buy and ship another from the states and do my work on that, or try and do my thing with what I have...guess what I prefer?!

grtz,
Tom

Is the 66 diff from 67 or 8?. I've run them old C6's in 4000 lbs car in the 11's
2500 lb Falcon 10.20's w/brake. never a problem.
good luck, Ron

Originally Posted by DennyW

The 66 is different than 67 and later. They are pretty beefy though. Get a shift kit, a beefy band, and smaller end steels so you can add a couple more clutches. It should hold 500 hp. Check a couple places like TCI for beefy parts to add.

so it's mainly that the casing isn't as rigid as the newer years?
I was indeed thinking of putting in some thinner end steels and add some clutches.

Originally Posted by shoprat

Is the 66 diff from 67 or 8?. I've run them old C6's in 4000 lbs car in the 11's
2500 lb Falcon 10.20's w/brake. never a problem.
good luck, Ron

well, to be accurate...the C6 casting code starts with: C6...
(RF-C6AP-7006 to be complete)
no, seriously! It does! so it's a 1966 casting, not any younger than that!