qnitro

iTrader: (24)

So I was dropping in a cam in my LT1, was spinning the motor with Pully bolt, and now it wont budge... Its stuck beyond belief.. I have a ARP bolt in there and with a breaker bar wont budge, with Air gun 120PSI wont budge... So I ended up dropping motor out bottom( Very easy I found out, i will always do it this way...) anyways, I have the long block out with everything off...and was curious, will a good machine shop be able to get it out?? Thanks for any help

NSTIGATR

iTrader: (4)

youre trying to back the bolt out now???? it should definitely come out easily with the impact. i dunno, maybe you cross threaded it in there ??? try a bigger breaker bar with a pipe on the end as an extention.... machine shops gonna do the same thing more than likely

RamAir95TA

iTrader: (2)

I second the impact gun. Might take a few minutes of pounding but it should eventually loosen. The OEM bolt is hardened and should take a beating. You can try heating it - that might help.

SS RRR

iTrader: (2)

I would stay away from the impact gun. If it's that stuck then it will just beat the **** out of the bolt head or the socket.
If your flywheel is off then I'd bolt it back on and stick a screwdriver through one of the holes in the flywheel and let it catch on the block and use a cheater bar on the crank bolt. Make sure to use a six point socket.

19mike84

another leverage trick is to use the box end of a big wrench and slip it over the breaker bar handle

fuel

iTrader: (13)

or use a brazing torch or soder torch and get hot, not to hot, but hot.then try the impact gun

ss.slp.ls1

iTrader: (36)

24" breaker bar and the right 6 point socket. Never had a bolt that I could remove...providing that I had enough room to properly use the breaker bar.