Been hearing a lot of rumors flying around the internet, social media, etc. about lifters and or cam's being less than standard in quality, also a shortage.
Wondering if anyone has recently purchased and broke-in a cam?
I do understand the issues with low zinc oils out there now...so I don't believe from I read or heard some claim that the low zinc oil is an issue. As we all know we have to use additives, break-in lube, etc to break-in a new motor these day's.
What is being said is that, supposedly lifters are only manufactured by a couple of manufacturers and being distributed to many suppliers, ie Comp Cams, Crane, Edelbrock, Harland Sharp, etc, etc. Most of the problems being reported are with flat tappet cams and hydraulic lifters. I have seen and heard stories from people building engines that are people who shouldn't be building engines also.
Apparently there are no issues with roller cams.....
Really trying to see if these rumors or stories are valid or just propaganda to get people to move away from flat tappet valve trains?
Any thoughts or experiences?, would like to hear some opinions.

Mark D.

1968 W200 Sweptline
1969 D100 Utiline
1971 D100 SE Sweptline
1993 D250 Club Cab Sweptline
1986 W250 Cab & Chassis
1978 D300 Sweptline

E. Brookfield, Massachusetts



Edited 1 time(s). Last edit at 06/14/2021 08:43PM by swptln.