Cylinder pressure


Master Mechanic
Mar 14, 2020
I have a 350 sbc of unknown construction. No idea of parts used inside it. I dated the block to 1980-85 casting 14010207. The heads are 993's. Other than that I have no info on this thing. I am sure a rebuild is in it's future. For now however I want to check the cylinder pressure. Was wondering what a good/bad pressure rating would be as far as psi?


Royal Smart Person
Jan 18, 2018
Anything over 120 and as long as they are consistent. Otherwise without knowing the engine they can be 110-220 cranking pressure. A leak down test is a good check too
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