The Stovebolt Site Forums The Shop Area Engine Shop 235 plus .30 displacement

While working on a misfire on my 55.2's 235 I pulled the plugs and scoped the cylinders. I was pleased to see a beautiful cross hatch on the walls and fresh pistons marked .30+ along with shiney valves and a clean head so the P/O was at least correct about that.
The miss was just incorrectly adjusted valves and it purrs like a kitten now and huge difference in power.
So what would my displacement be if its been bored 30 over. I can find specs on about every engine out there but not a 235

I calculate displacement bythe formula :

bore x bore x .7854 x stroke x number of cylinders .

figure area of cylinder ( bore x bore x .7854 ), then cylinder volume in cubic inches (area x stroke), this multiplyed by number of cylinders gives the engine displacement.

there is an alternate formula to calculate area of cylinder (circle).

What specs do you need? A Shop Manual and a calculator?

Use the standard dimensions first. Make sure it gives 235.5 (approximately).

Add your overbore to the bore. My guess is that you mean 0.030" over bore?

239.4 cubic inches?

Double-check me - I also shift decimal points and miss digits.