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Old 08-01-2012, 06:58 PM
loudandproud loudandproud is offline
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Sewing Machine... 350 SBC XR282HR Comp Cam with Lunati Roller Rockers

Motor has about 300 miles on it and i never really noticed but my engine sounds like a sewing machine. At first i feared it was a ring land, but a compression check showed that all was well.

Cam is a XR282HR, with LS7 lifters and Lunati Voodoo Rockers...
Im running procomp sheet metal valve covers and have plenty of clearance.
Preload is set up 1/2 turn past zero lash.

Is a sewing machine sound normal with an aggressive cam like this?

Its not terribly loud... i can hear it with the hood closed... but I can hear it with the hood open if i listen.
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