68 C50 Looongbed pickup build

[notchbackgta]

Originally Posted by rkn463

So far as the grade 8 bolts, my motto is "if it's worth doing, it's worth overdoing!" That and every build I've seen where a crossmember was drilled out, the rivets were replaced with grade 8. This is a mix of cross members and reinforcing plates, so... Refer back to motto

Well on the frame the grade 8 are worth it, I could even see using grade 9 because that is a place that matters. But welding the grade 8 into the manifolds is just waste because you will kill the heat treat of the bolts once you weld them anyway. But I totally get it, I overdo and most of my projects snowball into much larger projects because it's worth doing while I am in there anyway, lol

Originally Posted by rkn463

I settled on carriage bolt heads to fit down inside the manifold

Glad to see you went with something more reasonable