Does the horse power number on the MSO say anything about the car?
Or for that matter, does anything on the MSO say anything about the car? Like maybe Z/28 or SS396. Referring to 1968/1969 Camaros. Thanks, Joe

According to John H., an MSO "shows the date, model year, invoice number, dealer info, car make and model and VIN, the old SAE taxable HP, and shipping weight. It was generated by the assembly plant and mailed to the dealer."


http://www.camaros.net/forums/showthread.php?t=77351&highlight=MSO

I can only remember part of the formula for the SAE HP. Bore x number of cylinders and then something else. Stroke is not a factor. This is a 70 Z28
http://i156.photobucket.com/albums/t32/z10kl/70rsz/kdl1-1.jpg

The old "Taxable Horsepower" formula was:

Bore (squared) times number of cylinders, divided by 2.5.

Since the formula ignores stroke, all 302/327/350 (4" bores) will have the same taxable horsepower. Some states used this number many years ago to calculate registration fees; I don't think any state does any more. :thumbsup:

John,
Is it possible to get the MSO from the MI secretary of state if the car was sold new in MI?

BTW I am guessing that was you in the Free Press article last week?

John,
Is it possible to get the MSO from the MI secretary of state if the car was sold new in MI?

BTW I am guessing that was you in the Free Press article last week?

I don't know how far back the SOS records go, but that's where the MSO's go when the car is first registered.

Yup, that was me in the Free Press article.

:beers:

I under stand the formula but just ran across the MSO for a 69 Z I used to own. It has 48 sae HP. My 70 Z above has 51.2. I would have bet money they were the same. Why would they be different?

My 68z says 48.0 & so do the ones Jerry MacNeish shows in his books. Bore squared x cyls divided by 2.5 comes up to 51.2...4" bore
Joe

So is this a way to prove a 302? Did they just pick a number a little less than a 350 comes up to even though it is the same bore?

From other threads I've read, they're saying no...Joe

Plant computer that produced the MSO probably screwed up; 48.0 is for a 3-7/8" bore (283 and 307).

:beers:

They must of screwed up a bunch of them as plenty of them exist, 67,68, & 69

Well, 302 is between 283 and 307, so someone didn't figure they had to do the math.

I know in missouri 48 taxable hp is a small block car and 52 is a big block car I don't know is 302 and 350 is the same or not the orignal title to my car was 52 in the hp section about the only way to prove it was a big block car because the engine is mia