Small block TrickFlow heads part 1
These tests were done on my 422 that I ran for the last 5 years. It’s a .660 lift solid cam engine.
I have a short section of rocker shaft so it makes this job a little easier but it’s still a pain. I grabbed 2 (3/8) pushrods that I used on this engine and two 1.6 ratio Harland Sharp rockers. Man it looked close to the small radius they (TrickFlow) machined in the valve cover rail. After everything was bolted
down I tried to rotate the engine and damn they hit. So I removed them and tried 1.5 ratio rockers. Damn hit again so I removed everything and tried my 5/16 pushrods for my new 408. They cleared with both the 1.5 and 1.6 rockers. Man it would have been so easy since you were making a NEW head to move the shaft mounting block back. It would have helped center the rocker on the valve tips. Thank God for Engineers but man oh man. The pushrod with blueing on them are 5/16.