Engine Break-In

[ironstealth]

there are as many theories on how to break in an engine as there are engines to break in. I was only mentioning the oil change frequency. The steady 2500 rpm for however many minutes thing is specific to flat tappet cam engines. Its been a long time since I did one myself, but I seem to remember 20 minutes? I remember doing it on the Beetle engine. I had it sitting in the back yard running off a gas can. Fired it off, rigged the throttle open to run at the proper speed and let it run. I'm sure it pissed the neighbor off hearing that old flat four spinning away.