On Fri, 2 Jan 1998 12:52:31 -0800 (PST) William Lewis
<wrlewis(at)ucdavis.edu> writes:
>Jarrid
> Why would the flywheel make any difference as to the
>bellhousing
>bolting to the block and the tranny bolting to the bellhousing. I ask
>this question, because I am pretty sure that when I put my car
>together 5
>years ago, in my naiive bliss I used a Series V block and flywheel,
>and
>bolted the Series I tranny and bellhousing up to it using a Series I
>clutch. Apparently, this combination shouldn't work???
>
>Bill Lewis
Some of the clutches have different bolt patterns.
I think the SI clutch has the same bolt pattern as the SII to SIV,
but the pressure is somewhat lower. SIII and SIV clutches are
still an 8 inch, but the use a diaphragm type clutch, that is easier
to engage, but lacks the clamping force of the earlier clutches.
The later series 5 clutches are only 7 1/2 inches, and the smaller
pressure plate goes along with the 25 spline disc.
You could use the 7 1/2 disc with the earlier flywheel and 8 inch
pressure plate, but you would be wasting a significant amount of
clutch force due to the loss in clamped disc area. The loss in on the
order of 30%.
If you have a tranny with a 10 spline shaft, its a null issue, because
the 10 spline discs are available in 7 1/2,8 and 8 1/2 inch diam.
Also, even the SV flywheel with the 7 1/2 cover, can be re-drilled
to accept the larger capacity clutches.
Jarrid
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