T56 Magnum to Bellhousing bolt size?

[BBC71Nova]

Trying to round up the bolts that I'll need to connect the Quicktime bellhousing to the T56 Magnum transmission. Anybody know the correct size? Quantity needed?

Thanks!

[carbuff]

I'm pretty sure you need 8 of them, as I looked at the face of my Magnum this past weekend. Unfortunately I don't know the exact size though.

[BBC71Nova]

OK from what I was able to find out the bolts are M10 1.5 X 40 flanged head cap screws. I ordered a box of 25 from McMaster-Car for couple bucks more than GM wants for a single bolt. Let's hope they work...

[eddiep]

Yep, 10mm 1.5 pitch, 40mm long. Sounds like you already sourced them, but I used ARP 772-1005 ... It's a 5 pack of polished stainless 12-point bolts in this size/length; you need two sets as there is 8 or so bolts that hold the trans to the bellhousing. There is also a black oxide version if you don't want to pay $23 for each package of 5 fasters.

BTW, I sent your BBC frame stands out today - let me know how they work!