340 break in question

dartfreak75 said

Every book every artical, every instruction i have ever read for breaking in flat tappet lifters all say to get the rpms up to 2000rpm min as quickly as possible. My luniti instructions even say not to let it idle. Maybe rollers and diesels are different but for flat tappet engines I have always read and heard do not let them idle. Get em up to 2000rpm and get it the running temperature then start the increase of 500 rpms for one min all the way to 3500 then the same back down to 2000.

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1200 RPM is not idle, and will allow full oil pressure...

First start of an engine is pretty hectic; verifying oil pressure, listen for knocks, setting initial timing to get it to run smooth and not choppy or die, verifying no oil, trans fluid, or coolant, or fuel leaks, that's an easy 3 - 5 minutes right there... Then get it up to 2500 and set total timing, then watch the temp gauge to make sure it doesn't overheat...

If there are any issues that are critical and make you shut it down to fix so it doesn't blow up, it doesn't matter if you were at 1200 or 2500 RPM before you shut it down... Verify there are no issues before starting the break in...