OldIHC

Does anyone know what the measurement is for a standard cylinder bore? Head is off the block finally and would like to know what bore this engine is.
Thank you,
-Snowman.

https://egge.com/kit/ihhd213m/
The new Green Diamond engine used in the 1/2, 3/4, 1, and 1-1/4 ton truck models has a 3-5/6 inch bore and 4-1/8 inch stroke and develops 82.8 brake horsepower at 3400 r.p.m. The new Green Diamond engine for the 1-1/2 ton truck model has a 3-5/16 inch bore and 4-1/2 inch stroke and develops 93 horsepower at 3400 r.p.m.
I found this with Google. You should try it sometime.

Hey Nikki,
How about you try quit being a Dick! I have seen you do this over and over like you are smarter than anyone else. What a joke. Some guys just like the community of this board and other guys like helping out. If you don't have something nice to say then logout.

Snowman, The HD-213 has a bore of 3-5/16" and stroke of 4-1/8".
Generally if the engine has already been bored out the piston will have its oversize stamped on the top of the piston.

Let us know what you find.

Approximate measurement 3.3160" The only markings on the pistons are #1-#6.
-Snowman.

Fraction inches:
3.316" = 53/16" = 3 5/16"
This looks like OEM to me.
I couldn't remember the calculation, so I Googled for the answer.
https://www.omnicalculator.com/conversi ... o-fraction

I get 5/16 as 0.3125"
to covert fraction to decimal divide the numerator (top number) by the denominator (bottom number).
He didn't say if he was measuring the bore or the piston, but either way it .0035 over std. if the measurement is accurate to that degree.
I'd call it std as most oversize piston start at least at .010, not saying you'll never find a .005 but it would be rare!