Another 416 Stroker Build-Pic Heavy

gregcon said
I don't consider any measurement of lift 'real' unless the actual springs (and pushrods) are used. Checking springs are so light they don't tell the true story.

Remember the SS/A Cudas, etc? I talked to Ray Barton years back on those engines and he told me if they assembled the engine with checking springs, it wouldn't turn over. The pistons hit the valves. Change to the 'real' springs and not only would it turn over, they'd be able to spin it over 8000RPM. A stiff spring will put all sorts of flex on a valvetrain that won't be seen with a light spring.

I also don't like pushrod measurements that don't include mention of the ball radius. A 7.500" pushrod with a 3/8 ball is longer than a 7.5000" pushrod with a 5/16 ball.

They measure end to end, the ball size is apart of that, and if the cup matches it should move the same amount.
Yes the spring will introduce the loading but the way you understood what ray was hoping he still remembered right leads to the conclusion of the .080 to .100 clearance "p/v" was used up by a light spring and that amount of flex in the pushrods was how they gained it.

.100 flex, damn. Time for better push rods.