Bill.  That’s downright scary.  That is like the Checker six cylinder engines here that had a run of crankshafts that were 0.009” undersize and the ‘special’ bearings were stamped ‘STD’.   If you didn’t mic the crankshaft and just put a set of standard bearings back in, you were in for a real surprise when you cranked the engine back up.  The main tunnels being bored would be a harder catch for sure.

Lorena, Texas (South of Waco)

 

Ted, Ford in Australia when remanufacturing the y blocks in the 60,s used to tunnelbore the mains .015" O/S and used big back main bearings to stay on centerline, these bearings were still in 010, 020. 030. 040 U/S on the journals but became exceptionally hard to obtain, hence many unwary engine buyers thinking they had great ford remanufactured engine had to look for Std block, they had chrome tag attached to block. Regards bill

  AussieBill            YYYY    Forever Y Block     YYYY

 Down Under, Australia

Oh and the intake has the small carb base but is adapted to a holley. It was running great 2 months ago so its going straight in my Hot Rod!! Oh got my T5 mounted tonight!! Still excited! I have always wanted a Y block! I cant stop thinking about it!!! I want a 3x2 intake for it and edelbrocks website says they make a brand new one but i cant find it anywhere!!

The tag on the block says: its been bored .040 over crank turned .010 rods and .010 mains. So a pretty go rebuild! Im doin research on the trans i think it may be a HD trans that came out on the 57 big trucks. It weighs a TON!!! I was told there is a R11 and R10 trans. What one is the best? I havent got to look at the trans much other than the weight! haha! Thanks for the help and i am VERY excited about owning a Y!!! David

Welcome to the site. I'd be interested in that OD trans. let me know if you want to get rid of it. It might work great in my old truck.

       A  L  A  N   F  R  A  K  E  S   ~  Tulsa, OK    

David.  Small square flange at the carburetor base or the larger later model Holley carb flange on the intake?  Based on the block casting number, the engine likely started life out as a 272.  Once a rebuilder did their thing to it, the engine could be anything right up to some form of 292 based engine at this point.  It was common practice to take the 272’s out to a 292 bore size back in the day.  What info is on the manufacturer’s tag?  Assuming the engine has been rebuilt, the tag is a starting point but no insurance that the engine hasn’t been rebuilt again since the manufacturer’s tag was first put on the engine.  It may take a tear down to determine exactly what you have but if the engine runs good as it is, then there’s not much need in tearing it down unless replacing the gaskets due to age.

Lorena, Texas (South of Waco)

That od tranny is about the next best thing to the

t5 for cruising. However, you can always sell it after

you install the t5. I would bet someone will want it.

55f100

West Monroe,La.

Thanks! I cant wait to get this in my car!! The motor came with an overdrive three speed trans too. Truck trans. Is this worth keeping? I planned on running a t-5

Pull the pan and see what the main cap numbers are.

There is virtually no way to tell what cubic inch it is until yuou open it up.

Spend some time on this site and learn what I mean.

http://www.ford-y-block.com/technical.htm

Welcome abord.

Oldmics

here are a couple links that should answer a few of your questions. After you take a look we will need more info to help further. Good luck with your Y.

http://www.ford-y-block.com/Block%20identification.htm

http://www.ford-y-block.com/

1956 Fairlane Victoria (ORREO)

 

Overlooking Beautiful Rimrock AZ