General Motors claimed they had two problems - #1 being a faulty Parkerization-process surface-hardening on some cams, and #2 a faulty break-in procedure at the factory at first engine start-up. What ever the problem was or is, we had to fix many back in the 70s - and on. Our standard procedure was to replace the cam and lifters with a Crane cam kit. I'm sure there are others just as good, but we had zero comeback problems with those aftermarket cams. My 64 Chevelle SS still has one in a 283 with 160K miles on it. Many of those SB Chevys with failed cams also had failed cam drive-gears since they used plastic coated teeth. They fell apart and the plastic would often plug up the oil pump screen and ruin the engine. Hopefully you installed a set of all steel timing gears and new chain?
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Today's Featured Article - Buying your first tractor: Choosing the right one - by Chris Pratt. They cost less than the tax on a new tractor (at least where we live). They have the weight to do the job. They are simple and understandable. They even have a history and can be restored to become a major source of pride and enjoyment. But how do you know what to buy and how do you make the right purchase? There is a surprising number of machines available in every shape and size imaginable. Like most things in life, your needs have a lot to do with wh
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