Lunati 60406 vs PurpleShaft P4452761

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Yep,
UD Harold design for the .903 lifter
Asymmetrical lobes.
Faster opening , slower Closing
Then Comp XE line.
That Are on a Chevy lobe.
The Voodoo line is Quieter too.
Yea the XE line is for sure, but the Nostalgia line from Comp uses Mopar lobes. I still wouldn't use Comp to stir up an outhouse tank right now though.
 
Asymmetrical lobes are not new like many think......
They are in my 1974 Isky catalog.....

Also, Comp had XE lobes for the 904 Mopar lobes. #5964. 275 adv, 231 @ 050, 0.525" lift.
XE Chebby lobe 274, 230, 0.488" lift.
 
Just a bit more aggressive lobe there…. LOL!
 
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