Main bearing cap bolts

[Polo-1]

SBC BBC are not torque to yield bolts, same as SBF BBF and Mopar. The New Stuff is, and are older LT5.
From what I have heard other builders are doing the reuse on the mains, as you can not buy new. Nothing from ARP either.

Originally Posted by Polo-1

SBC BBC are not torque to yield bolts, same as SBF BBF and Mopar. The New Stuff is, and are older LT5.
From what I have heard other builders are doing the reuse on the mains, as you can not buy new. Nothing from ARP either.

Thanks for explaining, yeah I have to get the correct tools too for torque to yield. I want to save where I can, but not at the expense of doing it correctly. I just took off the oil pan tonight and it looks like 10 bolts if going new, not counting the lower case bolts. Kurt White has them new, but I have not looked yet to see what they cost; I'm scared. If the builders are reusing them then I would do it too. I guess I better invest in a good torque angle meter too.

[Polo-1]

Kurt does not have the larger bolts for the 2 bolt blocks. He does have the smaller bolts for the 4 bolt blocks 93-95.

A torque angle guage is a must.

[bdw18_123]

I just bought a torque angle meter yesterday.

So, it sounds like its ok to reuse the main cap bolts (at least once anyway), how about the rod cap bolts? Can you reuse those too?

[Polo-1]

Not when you could buy new, or better then new bolts.

http://www.zr1specialist.com/HAT%20W...od%20bolts.htm

Thanks for the info. I ordered con rod and camshaft bolts from Marc H yesterday. Bad news about the main bolts for 2 bolt blocks (4 each), but I think mine has not been gone through since factory assembly so hopefully okay to reuse. It is such a shame that ARP does not make these. Kurt shows stockage of these, Bolt, Crankshaft Bearing Cap M10 - 1.5 - 111 but maybe his site is not current? I have a bunch of other tools to buy too and have slowly been switching to Snap On as I have been finding that Craftsman is just not cutting it for certain things and it makes a difference with the right, high quality tools.

On another note, I love watching the Nelson Racing Engines University ZR-1 videos....this guy is awesome and makes it look so easy.

[Polo-1]

Yes 10mm are the small mains (2,4) 12mm are 1,3,5. No one has the 12mm.

For the later 4 bolt blocks 8mm and 10mm.

I have called and emailed Nelson.... No returns.

Originally Posted by Polo-1

I have called and emailed Nelson.... No returns.

Yep, he did the same thing when he ordered a set of bearings.

Originally Posted by Polo-1

Yes 10mm are the small mains (2,4) 12mm are 1,3,5. No one has the 12mm.

For the later 4 bolt blocks 8mm and 10mm.

I have called and emailed Nelson.... No returns.

Okay, thanks I understand now. That really sucks.