RAMBOW

So i'm trying to absorb as much info as i can for my upcoming 455 build.
Block is a 1976 FA block.

read a post mentioning that some of these blocks did not have the z-bar stud hole... I have a manual trans car, so immediately went out to the garage to look at my new block and sure enough- its not there, the pad isn't even there.

Is there a bracket or something to mount a z-bar stud on these blocks w/o the provision cast on them, or am i SOL...

Thanks-
Ben

RAMBOW

Found this...
http://sdparts.com/details/scoggin-d...ts-center/sdcb

A relocation bracket for gen V & Gen VI 454's that sometimes did not have the zbar stud either... Appears to use the bellhousing flange bolts to mount to.

I know the BOP bellhousing is different from the chevys... Anyone know if those lower holes would be the same? Would be cool if i could just buy a bracket instead of having to fab one up...

joe_padavano

Nice find. The bottom two bolts and the dowel pins are the same. The rest are different. The BOP pattern is further inboard at the next two bolts. You could use this bracket and weld a tab to the upper bolt location to pick up the bolt on the BOP pattern. Or, you could use a hydraulic clutch.

Chevy:



BOP:

507OLDS

I was at an Olds event 2yrs ago,and there was a guy selling a few 455's.One of them was a smogger 455 without the stud hole,with the brackets & the ball stud still attached.It was really goofy looking,but it was original.I have no idea who that was,or how often you could find stuff like that.

RAMBOW

Only took me 3 years...

IMG_20130526_165810_053_zps76960045.jpg
IMG_20130526_165800_545_zps15c2a5ad.jpg
IMG_20130526_165804_796_zpsf124dca9.jpg
IMG_20130526_165822_640_zps90642118.jpg

This is my first attempt at the bracket.
While templating, i quickly discovered that the "Chevy" bracket i mentioned 3 years ago, wouldn't work- Because the olds has the starter on the drivers side- the bottom casting flares out another 1/4-1/2" so the bottom hole on that bracket wouldn't work afterall.

I had to pull my 330 and bellhousing out of the car in order to mock this up properly- After I tacked it up on 330, i took it over to a friends house who has a 1966 400 block (which has the hole & pad) on a stand and test fitted it on his to check alignment of the stud hole and discovered that the big casting pad on the 330 is in a different place on the big block- That big pad was tight against my bracket on the 330, but no-where near the bracket on the 400. Wild.

A friend of mine is going to turn down the shoulder on the ballstud so we can shorten it 1/2" to account for the bracket & gap from the block and then weld it to the plate.

anyway- thought this might be of interest.

1970VistaCruiser

Ben,
Old post but can ypou still show me pictures of your z bar stud bracket. I have encountered the same issue with a 75 455 for a FRIENDS CAR.

ANY HELP GREATLY APPRECIATED.

your old pics dont open anymore

joe_padavano

The show up for me

1970VistaCruiser

yes I logged on and they showed up your right