Graham,
Read the articles in http://www.tigersunited.com/ Performance Tuning for
many finished approaches on both 260 enhancements, 289/302 conversions,
newer multi-hole pattern Toploader cases with both narrow and wide ratio
gears, Tremec and T-5 conversions and modifications involved, and the
cost information. The choice of bell housings, and modifications to the
stock bell housing, to accommodate 6 bolt engines is also discussed.
The Forum also has a great deal of discussion on these issues that have
already been discussed on the list.
Mailing List Threads includes earlier discussions of all these issues.
Steve
gharlowe@comcast.net wrote:
>The last post got me wondering how many folks installed 6-bolt 289s or 302s,
>but kept their 5-bolt 4 speed. I'm close to pulling my 260 as part of the
>resto teardown. I would rebuild it, but the devil has me thinking that if the
>money's going to be spent, should it really be spent on a 140 hp 260? From
>the cyl head id discussion, it sounds like tweaks to the 260 are limited other
>than going the F4B/4bbl and header route. Pls correct me if I'm wrong.
>
>I'm SURE this has been covered, but can the list describe some of the
>challenges to a 289/302 conversion? Adapter plates are available (cost?
>sources?)...but if you install the adapter plate, what else needs to be
>modified? How rare are 5-bolt 289s?
>
>Is that same devil going to be whispering, "Get a T5"?
>
>Thanks for your thoughts...
>
>- Graham
>
>
>
--
Steve Laifman
Editor
http://www.TigersUnited.com
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