Y-block Question.????

ok..well i have a 1955 ford y-block 272...my buddy has two y-blocks.there both out of service,,from both of them im hoping too salvage eight good pistons and eight good rods...with a new gasket set and new rings im hoping too bore my 272 block out too a 292 and put it all together..now my question is..what else would i need too take from the 292 and put it in my block..such as crankshaft? camshaft? rocker ***embly? can anybody give me some pointers and tips..????

goose

 

I don't know if I quite understand what you're asking. You have the 272, and you want to make a 292 out of it? If so, put one of the 292 cranks in. The 272 and 292 are the same 3.30" bore, but the 272 has a shorter 3.625" stroke compared to the 292's 3.75. All the rest of the stuff is interchangable across the y blocks. I'd personally want to run the 292 heads. Try to use 57 and later rocker arms, which are a better design than the 54-56 versions. I'd imagine the 292 would be a more agressive grind than the 272, so I guess I'd run that cam.

Again, I'm not sure exactly what you're asking, you're trying to build 1 motor out of 3? Why are the 292s bad?

 

I think 57Joe has his facts mixed up. The stroke on 272's and 292's were the same (3.30). Bore size on a 272 is 3.62, a 292 3.75. As he said, all the other parts are interchangable. Note - Whatever cam you use, make sure you use the lifters that cam with it and mark which lifter went on which lobe and re***emble the same way. The lifters and cams get a certain "set" to them once they have been run. Personally, I would go with a new cam and lifters rather that fool around with a used cam. The best heads are the 57's ( "G" head) but the earlier "C" head is pretty good also but it doesn't have the bigger valves of the G. If I remember correctly, you must also use the push rods that go with the rocker arms that you will be using.

 

Don't turn down a pair of "113" heads if you find some. They've got the same size valves as the "G" heads, but slightly larger combustion chambers (factory rated at 9.4:1, as opposed to the "G" head's 9.7:1 rating), and are somewhat easier to find, as they were used for two years instead of one. Some are of the opinion that they are actually better than the "G" because the intake valve is less shrouded. All 1958-59 engines used them, and in '60, Ford went back to the tiny valve sizes that the '54 239 used.