Slow build 71 Scamp 440
Pushrod measurement.
I’m not quite sure how to accomplish this but took a rookie stab at it after watching numerous videos.
I used the comp cam measurement tool.
With the tool installed I bolted down the rockers. Not torqued. I then made sure that lifter was bottomed out. I then spun the tool up to ball of lifter and had the cup secured to the ball with minimal thread exposed. I then rotated the engine to see how it looked. These lifters weren’t soaked so when I rotated the engine the pushrod tool did sink into the lifter. I brought the lifter to zero lift and took the measurement. The pushrod at zero lift was not diving into the lifter.
Zero wall clearance issues
Measurement 9” 1/8
Once I feel confident that this is the ballpark of what I need I’ll order from Smith Brothers.
Two measurements taken
First with 1.5 threads exposed
Second with 2 exposed 9” 1/8
I’ll do it again and use a proper measuring tool.
Smith Brothers says I’m on the right path.
photos added
Pushrod measurement.
I’m not quite sure how to accomplish this but took a rookie stab at it after watching numerous videos.
I used the comp cam measurement tool.
With the tool installed I bolted down the rockers. Not torqued. I then made sure that lifter was bottomed out. I then spun the tool up to ball of lifter and had the cup secured to the ball with minimal thread exposed. I then rotated the engine to see how it looked. These lifters weren’t soaked so when I rotated the engine the pushrod tool did sink into the lifter. I brought the lifter to zero lift and took the measurement. The pushrod at zero lift was not diving into the lifter.
Zero wall clearance issues
Measurement 9” 1/8
Once I feel confident that this is the ballpark of what I need I’ll order from Smith Brothers.
Two measurements taken
First with 1.5 threads exposed
Second with 2 exposed 9” 1/8
I’ll do it again and use a proper measuring tool.
Smith Brothers says I’m on the right path.
photos added