"THE" L89 Nova on Dream Car Garage

[kwhizz]

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I talked with the owner on Friday while he was waxing the car. He said that the heads are "074", and dated correct for the car and engine's build date. I'm confused on that. Wouldn't they have to be "842" in order to make the 11.25 to 1 compression ratio???
I meant to go back and ask him more about it, but got busy and never talked to him about it again.

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I was confused about the same Issue......I don't believe that GM had a Piston combination for the 396 with Open Chamber Heads...........Hummmmmmm!!!!!! 842's would be correct.......But someone here that is "Smarter" than me could "Chime" in with additional info......074's make you wonder........

Ken