Just curious, ready to put my new Y-Block back in and have been replacing as many bolts as possible. Noticed that my motor mount bolts have no markings on them (mount to block) and was just wondering if I should use grade 8 bolts or will grade 5 suffice? (I believe they are 7/16" x 1") 

I love the smell of burning rubber in the morning!

In this case I think gravity is your friend and grade 5 will suffice.

LOL you may be right Brodie, but was just wondering about the extra torque my new motor puts out, whether it is possible to snap a bolt head off? 

I love the smell of burning rubber in the morning!

I think the elastomer will shear lkng before the bolt gives up.

After reading this yesterday I was thinking about it. I don't think I've ever seen the bolts to the block break or shear off unless there was another problem. Like loose bolts or crash. I think grade 5 or above would be fine. Chuck

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire

thanks guys! 

I love the smell of burning rubber in the morning!

Rob, 
         I put a nut and bolt thru the left side to act as a strap. Leave it out a 1/4 inch or so and use a lock nut. keeps the rubber from separating and letting the engine flop over. I'll try to get a phone shot of what I mean and send it to you.

Frank/Rebop

Bristol, In ( by Elkhart) 

Frank I'd love to see that shot too. Can you upload it here or at least a sketch? Chuck

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire

I can give a definite "maybe" on that, Will try tomorrow.

Frank/Rebop

Bristol, In ( by Elkhart) 

Yes Frank please do! I was thinking of doing the old scrub chain trick from the head to the frame, but I have no threaded ports on the front of the left head. Also what you suggest sounds and will look a LOT better! 

I love the smell of burning rubber in the morning!