78 TransAm Pumped Out Lifter

I am the original owner of a 1978 Trans-Am, W72 option, auto, garage kept and it has 23,000 original miles on it. I have been so busy this year that I have only taken it out 3 times for a spin. This last
time, I had a lifter pump out and tick like crazy. No damage but the lifter ticking is coming & going.
What are my options? Some say just change the oil. Others say change the oil and add a can of Marvel Mystery Oil. Some say add other additives. Others say now that I have to change the lifters.
Anyone have a similar expereince & what did you do?
Thanks!
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r snipped-for-privacy@hotmail.com says...

My friend's 77 did this very early in it's life, he tried the MMO and it didn't work, he switched to Mobil One, and it stopped for a while, but came back. He finally decided that when he finally decided to change the lifters to change the oil pump, and do the cam, lifters and pushrods too. He also added an aluminum intake, and headers. That really woke it up. A couple of years later, a head gasket started leaking, and so he yanked the heads and replaced it with another set that bumped his compression up a little, and had mild porting.
The motor stayed together until the oil pump failed suddenly and his wife kept driving it..it seized up at the end of the street. A BB Chevy went in, and that's what it has now. The original motor is wrapped up and all ready to go back into the T/A eventually.
Good luck..
BDK
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Pull the valve cover off and make sure nothing broke or came loose as in the rocker arm and nut. If all looks good try the MMO.
On Sat, 03 Feb 2007 03:04:58 GMT, r snipped-for-privacy@hotmail.com wrote:

Randy
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A couple of simple things to try: -Marvel Mystery oil as mentioned -Change the oil -Go to a heavier visocosity oil if oyu have light weight oil in there -Make sure the oil level is not low or it's not getting diluted by something like gas getting into the crankcase from a leaky fuel pump.
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