I mean seriously, the first engine in my 52 lasted 30,000 miles, then while driving 55mph up hill it blew a piston randomly without a single symptom. Then I buy a 350 long-block (used), turns out it had sand in it, and a warped cylinder head. Now to my fresh build: Recently, I bought a 350 short-block from a small engine builder, it looked absolutely fantastic! was excellent craftsmanship, I was amazed. 4-bolt main, bored .060 over, forged pistons, decked to 0, rest is stock cast iron. I threw in a Comp Cams lifter/cam kit .480lift 230 duration, aluminum heads, 6qt Claimer pan, Melling HV pump, moly pushrods, 1.3 full roller rockers (for break in, 1.5's for official), Edelbrock Performer RPM Air-Gap, blocked the oil filter by-pass, 8in PRW damper. Put in a little less than 6 qrts of 10w 30 oil (6qrt pan), with the comp cams additive, primed the oiling system using an electric drill, then used the starter with the coil disconnected looking for oil pressure. Had to fire it up a few times real quick turning the distributor till it ran smooth enough to get out the door and start idling it to 2000rpm's. 5min in, oil pressure at 70psi and began to hear a tap tap tap tap, I was like hmmmm... must be a rocker, by this time it was nightfall so I decided to call it a night and get that rocker resolved in the next day. Came back to it, found a rocker was loose, seemed a bit odd, appears that the center lock screw came loose and it thread it's way out a bit, I then took it to 0 lash, turned the nut 1/2 turn, then tightened the lock securely. Fired up the motor, and now it's a grind CLACK, grind CLACK! 10 times a second about, motor heats up real quick, and one cyl sounds a bit flat. Great... Now I am broke, College classes are coming up, all I wanted was to be able to drive to class, and get a better job. Third engine, and I still have no luck... how is this possible? ----------EDIT---------- Got a Build thread going finally http://www.jalopyjournal.com/forum/s...d.php?t=820308 If the link does not work, you should be able to find it titled: "The SBC 350 Build."