Thanks for all the replies guys. Actually with my leak down tests showing 2 cylinders above 20%, one caused by bad valve seat..(#5), I figured this old bottom end could use freshened up while I had it down this far.
I decided to hone, install new rings, and bearings. When torquing the rod caps, one broke. It appeared like it was already cracked as it broke without much effort... This was cylinder #5...
I purchased ARP rod bolts and sent the motor to my machine shop to have them installed properly (re-size rod ends). I debated on installing them myself as it probably would have 'worked'. This would be a good chance just to have them look over the bottom end, especially piston-cylinder wall clearance, which I was worried could be excessive.
ezstriper: I have the cam out and it appears fine, just by eye.. I'm not sure if my 'stainless marine' manifolds have a spot for an O2 sensor or not.
Gimme Fuel: I didn't run 39* timing for long, it was more of testing and tuning. It was set back to 36*. I didn't have a problem with reversion until the lifter broke and wasn't firing on one cylinder, so there was reversion on one side.
Skip7750: I did check cam installation with a dial indicator after it was installed by a method told to me by the machine shop.. of which I forget by now. But it checked out okay. I forget what length pushrods I ordered, but I measured first and then ordered.
The motor actually seemed to run good, just lack of power on top end, getting worse going up or down in jet size. Until the lifter broke.
Jimway:
With the issues with the #5 rod bolts is it possible it made valve contact without bending the valve and still screw up the seat?
I decided to hone, install new rings, and bearings. When torquing the rod caps, one broke. It appeared like it was already cracked as it broke without much effort... This was cylinder #5...
I purchased ARP rod bolts and sent the motor to my machine shop to have them installed properly (re-size rod ends). I debated on installing them myself as it probably would have 'worked'. This would be a good chance just to have them look over the bottom end, especially piston-cylinder wall clearance, which I was worried could be excessive.
ezstriper: I have the cam out and it appears fine, just by eye.. I'm not sure if my 'stainless marine' manifolds have a spot for an O2 sensor or not.
Gimme Fuel: I didn't run 39* timing for long, it was more of testing and tuning. It was set back to 36*. I didn't have a problem with reversion until the lifter broke and wasn't firing on one cylinder, so there was reversion on one side.
Skip7750: I did check cam installation with a dial indicator after it was installed by a method told to me by the machine shop.. of which I forget by now. But it checked out okay. I forget what length pushrods I ordered, but I measured first and then ordered.
The motor actually seemed to run good, just lack of power on top end, getting worse going up or down in jet size. Until the lifter broke.
Jimway:
With the issues with the #5 rod bolts is it possible it made valve contact without bending the valve and still screw up the seat?