engine swap clutch issue

[tcook468]

I have a 74 Camaro that has a TKO tranny and a 621 bell housing with a center force clutch/pressure plate. I am swapping in an LT based 96 one piece main block. I was going to reuse the bell housing and clutch but when I install to engine there is no free play on the clutch fork at all. I am assuming that I need a different clutch/pressure plat but I am not sure and don't want to throw money at parts that I may not need. Has anyone run into this issue and if so what did you do to rectify it.

 

[badazz81z28]

Yes, the flywheel is different. I'm not sure if that's the cause of your issue. I don't recall the visual difference

 

[tcook468]

I have a ram flywheel which is correct for the 1 piece main seal block I am assuming the clutch pressure plates for the 1 piece seal block must be thinner than the one I have now which was in the car before when I had the 74 2 piece seal block. Either I need a new clutch kit for the newer 1 piece block or I need a different bellhousing or both. I am just not sure and don't want to throw money at parts that I may not need. I was hoping someone on here may have run into this issue before and chime in.