From:
michman11_REMOVE_409332_THIS_@yahoo.com
GM has manufactured vehicles with hydraulic
clutches for many years. The y car (corvette) and the f
cars (camaro/ firebird) both had/have small block
engines. Early versions had an external slave cylinder
which was mounted to the bell housing. I'm not sure if
the cylinder could be mounted on an h body due to
tunnel clearance. Your best bet would be to obtain a
late model hydraulic clutch set up which moves the
slave cylinder into the bellhousing. The slave cylinder
is mounted to the front of the transmission on the
bearing retainer and replaces the throw out bearing. This
design is known as a hydraulic throw out bearing. Mc
Loed offers a hydraulic throw out bearing which is
compatible with all "old style" small block bellhousings.
The hydraulic lines (supply and bleed) exits the
bellhousing through the throw out arm hole. I run the McLoed
bearing on my h body. Performance is excellent. Good luck
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