I am really happy with them .

I did do a bunch of welding on mine and the castings are pretty good .( I now have 19 head bolts )

I have 1/2 pushrods , so I had your usual sand drift of aluminum around the engine stand for clearancing .

The 1.9 rockers ,and 1/2 pushrods the only lifter that would clear was the jesel. A friend of mine is going to try the Jesel dogbone style lifter on his build. Those have the pushrod receiver cup located far down in the lifter body, I think he will have problems with the pushrod hitting the lifter body because of the exit angle . We will soon find out.

Next block will definitely be 2" lifter bore spacing with a 60mm cam tunnel.

Between 1200 to 1300 HP for these engine in full race trim is commen I believe.