In process of replacing my clutch and from previous posts it looks like the majority prefer the centerforce and what is the correct model to get or part no. and my car has a 421 bellhousing if it makes a difference in clutch size
Thanks for all replies

[ 04-27-2003, 11:44 AM: Message edited by: JIM69Z ]

You need the Centerforce 2 setup either the 10-1/2" or the 11" setup, depending on if you switch back to the small clutch setup or stay with the 11" setup. I run a 10-1/2" Dual Friction but I would go with the Centerforce 2 if this one ever wears out.

-Mark.

Mark
Thanks for the reply but i am confused on the bellhousings, i removed my clutch today and measured it and it was 10'5 and it has a hays flywheel installed by previous owner so is it possible to use a 10'5 clutch in a 621 or should i switch over to the 403 or install a 11' clutch and use my 621
Thanks

Jim, you CAN use a 10.5" clutch assembly with the 621 bellhousing and the bigger flywheel if the flywheel is drilled for the smaller clutch. I used to run that combo myself.

My preference is to run the smaller 10.5" clutch and 403 bellhousing. That flywheel will be the deciding factor. Big flywheels will not fit 403 bellhousings and there are issues with the starter nose cones too.

What it boils down to for me was I did not like all the hassles/issues involved with non-stock setups on my restored car. The high RPM/low torque engine with a stick tranny might benefit from the lighter/smaller clutch disk but maybe we are spitting hairs here. The smaller clutch parts are cheaper and more common so that was a nice side benefit. If your parts are in servicable condition and you are not worried about originality, it might not be worth it to you to bother with the swap.

-Mark.

Mark
Thanks for the info as i have some heavy thinking to do as i am trying to keep my car as original as possible