The block was cleaned, crank turned, bored to clean up the cyl. and new flat top pistons, 480 comp cam,lifters,bearings through out. Heads rebuilt but left stock,headers. I covered the cam and lifters with break in grease/fluid and used break in oil. I manually pumped up the oil pressure and started it up. I ran for about 15 to 20 minutes before I shut it down. It has set since, (several months) and I started it today to hear my new handy work, (the exhaust). Don't know what else to add. I shut it down right after hearing the knock so I did not chase it with a probe but it sounded low and drivers side. EB
