I got the marks figured out but when I took apart the rocker assy. one side never had the oil holes lined up, no oil to it or out, the rockers are oblong and the shaft is a mess but otherwise it looks pretty clean. Last driven in '71 Gary

       

Gary, 55 Vicky, St. Germain, Wisconsin

 

does anyone have a picture of the timing marks on the 312 balancer, I see a 6316 stamped on it. I can vaguely see some marks and #'s, just want to be sure. Gary

       

Gary, 55 Vicky, St. Germain, Wisconsin

 

2 5/8 is my number, back to a smile, Gary

       

Gary, 55 Vicky, St. Germain, Wisconsin

 

Gary:

You obviously have the pan off, pull a main cap and measure across the bearing.  2 5/8 equals 312, 2 1/2 equals 292 or smaller.

John - "The Hoosier Hurricane"

Just measured the lightening hole on the front throw, .870, roughly 7/8, far from the 3/4 but not 15/16 either. This engine is becoming an enigma, it is, it isn't, it is, it isn't, time for a brewski, it's 5:00 somewhere, Gary

       

Gary, 55 Vicky, St. Germain, Wisconsin

 

Gary

It sounds like someone gave it a valve job along the way and used the "C" heads off a '56 Merc.  Oh, and you should always be grinning ear-to-ear when you find a 312.  Good score!

Larry D

Winnipeg, MB Canada Eh!


'57 Fairlane 500 Club Victoria

'58 Custom 300 Tudor

'56 Crown Victoria

'61 Starliner Z Code

'51 Ford Victoria

Just checked the main caps.....ECZ 6329-A, should I be smiling Gary

       

Gary, 55 Vicky, St. Germain, Wisconsin

 

Just checked the rockers...intake 5&6 5751066, 7&8 ECG 6564 B2......exhaust ECR & G 6564- A2 & B2, a real mix, the pans coming off next. Gary

       

Gary, 55 Vicky, St. Germain, Wisconsin

 

Hi Gary,  I'd pull the oil pan and look at the main caps.  If they are marked ECZ then you have a 312.  Chances are it is not a Mercury engine by the block numbers you listed.  The 1273-1 carb was used on '57 Ford 312's and '57 T-Bird 312 engines.  Also if you have a head off, you can check the stroke by rotating the crank, if it is 3.44" you have a 312.  Good luck, Nick Brann - K.C., MO

I'm gonna stay in this post, the list # on the carb is 1273-1 , can't find it in my books, Gary

       

Gary, 55 Vicky, St. Germain, Wisconsin