Author:
BIG ERN (1973 GTS Big Block 4-Speed Convert)
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Date Posted: 07:07:42 06/14/07 Thu
In reply to:
Big Ern
's message, "Re: SWITCH OVER TO 4-SPEED" on 07:02:48 06/14/07 Thu
>You can use a 351 Clevland pedal and linkage set-up
>everything will work fine even part for bar that bolts
>onto block. Only mod I used was a 70 or 71 429 clutch
>adjusting rod and ball (any FE or 385 road & ball will work) with a 429 fork.
Big block fork
>has a hole in the fork and use a ball to seat adj. rod
>to fork. You will also need a big splined 1-3/8" input
>shaft 4-speed with a long tail. Big Block main case
>part # is C8AR 7006- W P/N is located on opposite side
>of linkage near the top cover.
>The Tailshaft # is C90R-7A040-A.
>I used a Hurst Competition Plus shifer for a 70-71
>Torino.
>You also need the transmission hump from a 72-76
>Torino for a 4-speed or floor shift automatic either
>will work to mount the shifter. Try to get a pair of
>429 CJ or police Intercetor exhaust manifolds as no
>one makes headers to fit a 4-speed! Use the factory
>big block motor mounts as aftermarkets will give you
>problems with exhaust manifolds hittng the steering
>box. Be sure to bolt these on before putting in the
>motor or you'll be pulling it out again to put the
>manifolds on.
>You will have to move the cross member. No sweat as it
>unbolts and gently remove the mounts and place in
>alternate position in the frame.
>Also change that stock 2.75 rear with a set of 3.25 or
>3.50 gears. I run a Centerforce Dual Friction clutch set-up
>to unleash the 525 ponies from a Fresh Overbored 71
>Police Interceptor.
>Giddi Up!
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