170 vs 225 differences

Cruisingram said

Well, I went and put the 225 I got on the engine stand- but oops, it's not a 225 its a 170. Soon as I got it upright on the engine stand- 3 freeze plugs staring at me.

I got it for basically nothing, was told it was a 225, my bad, didn't positively ID it, got a lot of parts like trans and radiator and all kinds of stuff he didnt' use from his V8 swap, so I am not mad at the guy or anything.

Stupid of me not to really look at it though.

I got a cam ground for a 225 from Oregon cams, a 2bl manifold and have ground out a exhaust manifold off a 170 with the outlet ground out to 2.5.

Any problems here? Can I just slap them in the 170?

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You cannot identify a 170 vs a 225 by the number of cup plugs with the exception being that no 170’s have 5 cup plugs and some (late)225’s do.
There are 170’s and 225’s with 3 cup plugs.
One way to tell is the length of the bypass water hose that goes from the front bottom of the cylinder head to the water pump. A 170 is shorter than a 225.
The 170 used the same diameter pistons when new, and a shorter stroke.
So it will rev higher easily when compared to a 225.
If you do have a 170 the external parts and cam will fit fine. One question on the cam is it RPM suitable to put the torque and HP in a range where you plan to drive the car.