Hi Leon, The Starter is a Tilton 54-40005 Super Starter- Severe duty LGC Chevrolet, 104T. I did grind a small notch out of the return lip of the sump, aprox 25mm long and 3mm deep, 0nly to share not having to take more out of the mounting block, very minor. Hope this helps, by the way, if you are using a BB chev ( earlier Gen 4 type ) I have an brand new Aviad Dry sump and oil filter adapter I couldn't use because the 572 is a Gen 6. I'm not that familiar with Chevs and ordered the wrong one, and it was going to cost more to return it than it's worth.
Regards, Udo.
Regards, Udo.