I had a 60 over 350 that started burning oil on one cylinder for no reason. When a motor burns oil on just a couple of cylinders it will detonate just on those cylinders but it is much harder to hear. My 60 over 350 melted the head off valve which finished off the head, piston and block. I sure a lot of people will tell about their 60 over blocks that they had no problem with,but I think once you get to 60 over it's kinda like forrest's box of chocolate.
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72 GMC Sierra SWB almost finished---- 84 Softail
Olive Branch MS
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72 GMC Sierra SWB almost finished---- 84 Softail
Olive Branch MS
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