Originally Posted by mechanic58
Can't re-use the bolt? This TTY bolt business is a bunch of CRAP. I've been building engines for 20 years and I've not once replaced a non-reusable bolt. I reuse TTY head bolts ALL the time. This is the biggest scam to ever hit the automotive industry. I'll bet you I've built no less than 50 engines, reusing the original TTY head bolts, withOUT failure. Granted, you can't reuse the same torque spec when you reuse them, but they can still be successfully reused with the same results.
Almost all the time it'll be OK... that's the thing. Just the few stories you hear it's worth replacing for a few dollars. My buddy reused his UD Pulley bolt and his popped off and went rolling down the road. Could have been torqued wrong, but it happened.
I'm guilty on my head swap, we doped up and reused I believe 8 bolts due to the change in the LS1 block and I got the old bolts. It was fine as it was at the time. When I added N2O I needed the extra piece of mind and changed them out to head studs.