[RockyMtnRacer]

Anyone ever have a block machined to accept a clutch linkage bolt? Apparently, some blocks came with the boss drilled and tapped and some not. I have a block without and want to get some background info before I talk to the machine shop guys.

[68SS396]

My block is drilled but the bellhousing I have is drilled for the clutch linkage bolt and it only places it over about two inches.
In fact when I got the bellhousing it had a clutch bolt in it. Don't know what effect it has or what applications it was used for but it may be a option if drilling the block is out.

[Joseph]

Not that much to it really. I had to machine Ford SVO 302 block for a clutch bolt. All you need to do is get the location of the hole from a block equiped with the hole and duplicate the location and size on your block. The key thing is to make sure the surface the hole is bored into is square (perpendicular to the ground or, said another way, parallel to the mating surface of the clutch linkage) and the hole bored sqaure to that plane. The area the clutch bolt is located should be machined flat from the factory so this step maybe not an issue. Either way, the bolt hole should be drilled with a Bridgeport mill or similar machine to insure it is square.

Joseph

[RockyMtnRacer]

Thanks for the feedback. My block has a boss cast in the right area - it's just not spot-surfaced, drilled, and tapped.

I would think the bellhousing mount might make the linkage alignment a little goofy - but I'll take a look at my Lakewood bellhousing and see if they gave me something to work with.

[Rob.Canada]

Befor drilling the block Try finding a ball and bracket from a 6 Cyl Chev. If you flaten out the bracket, you can rebend it so it bolts at bell housing and motor mount. I did this years ago on a 64 chev. Don't see why it wouldn't work on a Camaro

[Rob.Canada]

Befor drilling the block Try finding a ball and bracket from a 6 Cyl Chev. If you flaten out the bracket, you can rebend it so it bolts at bell housing and motor mount. I did this years ago on a 64 chev. Don't see why it wouldn't work on a Camaro