One of the issues is the trans that you have. Is it a narrow eared box like the
original trans, or is it a wide eared box that has two sets of mounting hole
patterns? If it does not have the narrow box hole pattern, it will not bolt up
to the original 260 bell housing. At least without modification (appropriate
mounting holes drilled).
Also, the later trans bell housings for a 6 bolt block have a slightly larger
hole for the trans input shaft bearing retainer to go with the trans that were
used. So if you use an original 5 bolt bell housing, you probably will have to
change the bearing retainer housing on the trans, or machine out the hole in
the bell housing.
Most people have gone the other way, converting from a 260 to a 289. There were
some excellent articles on all that was involved in the CAT Tiger Tales
newsletters in the not too distant past. All the info would apply to going the
other way, of course. I recommend geting ahold of those issues if you can.
Gene
----- Original Message -----
From: "Andy Walker" <awtiger@cox.net>
To: tigers@autox.team.net
Sent: Friday, December 6, 2013 7:50:23 PM
Subject: [Tigers] Bell housing question
Guys:
I'm contemplating putting a 260 back in my Tiger rather than the 289 that's
in the car right now. Here's the rub, though. The 260 I have is clearly a
5-bolt block, which I'm guessing all 260s were, but the 289 in the car is a
6-bolt block. Obviously, I'm going to have to change the bell housing over
to a 5-bolt unit. Now, if I do that, will my transmission bolt up to it or
not? Can I use my 289 flywheel on the 260? Also, are clutch sizes
different between the two engines? By the way, the 260 came out of an
automatic '64 Fairlane, if it makes any difference.
I'm all ears, guys.I've never had to mess with something like this before.
Thanks,
Andy Walker
Edmond, OK
B382001600LRXFE
TAC #740
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