He didn’t block anything, ran good oil pressure, no issues. Same thing on the next engine, a 360. He had a 340 in it for around 10 years. Raced it at least twice a week.
The weird part was the 340 would out 60’ foot and mph the 360 with a best 1/8 time of 6:13 and the 360 ran a 6:11 best, same heads and cam. 2600 pound Demon
I do have oil going to mine, and didn’t block anything. Though I checked oil pressure as I rolled the engine over, and no losses.
The next engine I’m putting together, will be blocked off, and rely on splash oiling. The x block I bought recently.
I’ll see how these lifters hold up. You guys have relayed some complaints about these lifters, or the other models Comp offers?