this tag came with the Rebuilt (312) Y BLOCK I bought on E-Bay out of Troy N.Y. I sure could use some help with what it says. I will attempt to post a scan so those of you, better than I, can try to clean it up some more.It appears to be a real good build but doubt it is a 312 unless bored to a 312

ENGINE-----Y-BLOCK FORD                                          l   CRIS MIRLSON

              .465@1.5or1.54                                            l   P.O. Box 416

URATION----280/25x@.050">DURATION----280/25x@.050                                         l    FARMINGTON         ?6402?

VALVE CLEARANCE .026 in + ex

10 degrees  btdc (center line)

Go to John Mummert's site www.ford-y-block.com and then post.

Mike, located in the Siskiyou mountains, Southern, OR 292 powered 1946 Ford 1/2 ton, '62 Mercury Meteor, '55 Country Squire (parting out), '64 Falcon, '54 Ford 600 tractor.

Based on the information you’ve typed:

0.465” lift

280° advertised duration.

25_° duration at 0.050”  Looks to be missing a numeral here?

Ground on 110° duration?  You’re missing a number here so it could be 108° instead?

 

The spec card is unreadable from my end so no help there.

Lorena, Texas (South of Waco)

The cam was ground by Chris Neilsen, Farmington Utah. You should be able to reach him for more info.

http://ford-y-block.com 

20 miles east of San Diego, 20 miles north of Mexico

Could it mean with .025 clearance the duration is 280 @ .050" If so that's a pretty radical cam. Even 250 at 050 is going to be a thumper. I don't know the age of the cam and tag, but back in the day cam's were often sold giving you the degrees at which the events ocurred. As in opens at 146 degrees before TDC and Closes at such and such. The 10 degree may refer to where the cam was set to obtain that measurement. We didn't use the centerline method, and overlap was another number used to evaluate the cam.   

Frank/Rebop

Bristol, In ( by Elkhart) 

Thanks for all your replies.

 The original tag, and whatever clean up I could achieve with my computer, is on its way to Chris Neilson in Utah.

I will post what ever verdict I recieve in reply

Thanks

John 

I just got the results from neilson cams and posted it under

REALLY MEAN IT 2

Thanks for all your help, and hope you are interested enough to help figure out what the rest of the engine build is.

 I know you don't usually do things this way but I got excited with my project and forgot to think

any and all help would be appreciated by this newbie

Thanks

John