I know the flathead is'nt the way to go for my truck, but it would look sooo nice way down in that big 'ol engine bay fully dressed...Kind'a like a painted up whore in a one room schoolhouse, um no, make that a whore in the church confessional!. Or some such poop. Thanks for the suggestions re. sonic testing, I'm sure there's one around here somewhere. Maybe out by the race track or... done wasting space for awhile...

rev.johnchoppermohamedjerryleejames

A flathead in your nice truck would be underpowered, and give poor gas mileage. 

If we have a sonic testing facility down here in little Grants Pass, OR, Portland definitely does also.  In the small chance that there isnt someone, try Salem. 

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.

Thanks Ted, The shop that has my block says that they have lots of experience with the Y, but they don't have sonic equipment nor could they recommend anyone close that did...I'm sure that there is someone in the Portland, Or. area... AND I WILL FIND 'EM. I am going to build a Y block...The only other choices for me are the stock 223 (I got beat on an ebay bid for a fenton split exhaust for the 223, the winner paid nearly $2000!) or a flathead, would a flathead be practical in my truck as my one & only daily??? I dunno.

 

rev.johnchoppermohamedjerryleejames

First ask the guys at the shop that has your block if they have someone they can recommend for the sonic testing.  If they can’t help, then check out some of the other shops in the area and especially any that do racing or high performance work.  One of those should have sonic testing capability.

 

Although ‘most’ 272’s will bore out safely to the 292 bore size, there are just enough of those blocks out there with core shift issues that makes sonic testing a prerequisite.  You have to remember that you're wanting to bore the block 0.125” over the stock bore size and that’s a push in the best of circumstances. As a for instance,  I sonic tested an EDB 292 block yesterday that I simply wanted to bore 0.080” over but that particular block ends up only being a candidate for being bored 0.050” over.  Core shift in that particular block was quite severe.  Without sonic testing, that would not have been known.

Lorena, Texas (South of Waco)

So, the shop that's magnifluxing my block doesn't have sonic capability, I'm in portland oregon...Any suggestions?

rev.johnchoppermohamedjerryleejames

Sonic testing is always wise when boring that far. It`s better now than find out you should have. Better to know than assume. We all Know what happens when we assume. 

Greg Dietrich Mt.Morris Il

Thanks,The rotational forces up, and down kinda' fits what my logical sense was telling me. What about the sonic testing issue prior to going ahead with boring the 272 to to 292 dimentions?

rev.johnchoppermohamedjerryleejames

You can always get good information here. Ask away. Like everyone mentioned, it looks like normal wear on the mains. The way my old man explained to me the force of the engine running would put the wear on the bottom half of the main bearings. Uppers would always look like your in most cases. Nice truck!

Dan      Kingman Az.      86409

Thanks, I just don't want to waste anybodys time. So, I am planning on the 292 bore, if the block is sound. Then, have the 113 heads that came on it mag'd, next will be the crankshaft tolerences. Then, if everything is cool I think a "hot rod y in a box" is about the best way to go, for what I hope to achieve, and my wallet! . This is where I'm starting...I've got a 3" axle from sid's under it, and I still need to flip the rear end and put the monoleaf springs on the 4 corners

rev.johnchoppermohamedjerryleejames

Dont hesitate to ask questions.No question is dumb if you dont know the answer.Lots of experience available.Just ask!