Reply to "Valve in new engine not seating"

LeMans850iMember

@stevebuchanan posted:
I used Summit's calculator and it came in at 9.64. I don't know if I am doing this correctly. If 9.64 is correct then 93 octane will work fine.
Compression Ratio : 9.64 : 1
Total Displacement (in.³) : 357.16
Total Displacement cc's : 5855.08
Inputs to Summit's calculator: Bore 4.030, Stroke 3.5, Volume 62.8 cc, Piston Dome/Dish 0.0, Deck Clearance .072, Compressed Gasket .033, Cylinders 8
It could be the deck clearance (.072) that is reducing this engine's compression ratio.

And you did not account for the valve relief either..

You should be fine..

did you meter the 62.8 cc?

10/8/2411:24 AM

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