I didn't see this link posted and I apologize if it has been.

Here are the GM Performance recommendations for breaking in that 350 HO crate engine. Interesting to note that the break-in period ends at just about 500 miles – and his motor already has 1100…

http://static.speedwaymotors.com/pdf/startupbreakinprocedure.pdf

I'm actually putting this very same engine into my '53 resto-mod over the winter.

Cheers, John


Last edited by Waves2275; 10/07/2014 2:33 PM.
1953 Chevy 3100 Resto-mod
In the Stovebolt Gallery
http://www.john-ayearst.com/la-noche-53-chev-pickup/