After a problem with the VATS it is finally up and running. (Thanks Allan Futral & CARAZYCUTTER4.8)

It idles choppy and sounds awesome. The driveability of it is hardly any different with the 5.3. This is with the stock converter (Ran out of time and funds for a Yank).

I've been babying it all night. Trying to get a few heat cycles on it. I'm gonna go ahead and change the oil at 100-150 miles, then again in another 500-600 miles and then 1000 more. Then after that, I think it'll be okay to run mobil 1 or royal purple in it.

How many miles should I wait until I go WOT? 600-700? It's killing me just breaking it in and not being able to see how much power I've been missing out on!

 

I would go wide open now. Drive that bitch like you are gonna drive it, it'll actually help seat the rings too.

 

I drove mine easy...


until I got to the end of the 1/4 mile dirt road the shop was on!

 

Congrats! Thats awesome.

 

500 Miles on the break in. Avoid high RPM and lugging it at low RPM. Changing the oil after that is a good idea - it tells you instantly if there is an impending problem. I put Synthetic into my GMPP 383 crate when I changed the oil @ 500.

 

i was told and alway did just ran it out the box it helps seat the ring as said above.imo if it can not handle it out the box it will not be able to handle it later.

 

Just make sure all the fluids are full and the oil pressure is good then go at it.

 

when i build my engines for mu race car. i let them idle at 2 grand for 30 minutes and change the oil then i take it to the track and punish it at 7600 rpm

 

i may make a mile before it is getting beat on

 

Bring it up to operating temp, change the oil then go beat the **** out of it.