My short block is a magnum engine. So with these LA heads, I will be useing PRW 1.6 Roller rockers that will use push rod oiling. Thanks. I hope they work great too. This 360 with home ported EQ in a 3200 pound dakota ran a bunch of 7.16 at 96 mph in the 1/8 mile. The only thing I am changing on the engine is the heads. So I hope it picks up a bunch over the EQ heads. But wont know for sure unless the tracks ever open up. Also I am thinking about building a stroker small block this winter for next year and will be useing these heads. But the way my luck goes it will be another 2 years before it gets built. Lol