Chev bellhousing bolts

[jezz]

anyone know of what size & grade bolts should be holding the bellhousing to a chev 327 block?

just pulled mine out of the block and they're high tensile M10.

I would have though that the early chev blocks would be imperial.

Jezz

[FC-225]

They should be grade 8 3/8 unc bolts.. They certainly would not have been metric..

Cheers

AL

[jezz]

Thanks Al.
would certainly explain why I'm not getting good thread engagement.
hoping that the complete thread isn't knackered, don't fancy tapping the holes in place.
but the 2 bolts I took out were most definately M10 but of diferent grades
the more I look the more problems I find...
Jezz