Does anybody knows if there are manufacturers producing Forged Pistons for 272,292,312 Y Blocks in stock compression ratios? I want to turbocharge mine. Thanks.

 

Have you checked TRW/SpeedPro ? they make 'em for everything else........ DF

 

I am also looking for forged stock pistons, anybody got an answer for this one.

 

Mummert has them. www.ford-y-block.com

 

Yes Mummert does have them but they are domed piston I believe, unless I missed something. Also I think they are part of a stroker kit made for the Y-block.

 

I don't recall ever seeing anything in "stock" ratios for the Y, even old stuff. THe old philosophy was to put a big ol' dome on just about everything, & to heck with flame travel, quench, & everything else.

I'm not sure whether John's forged pistons are available yet; someone said they were on "hold" until he saw a big enough demand to justify them. I guess you would have to call him. It might be possible to mill the dome to reduce the compression, depending on what you need & the piston deck thickness.

Any of the major piston suppliers like Ross, Diamond, Venolia, or J&E can do customs. The wait time isn't as bad as it used to be, with modern machining practices. However, they are not cheap. My guess is around $700 or more. If I was to pick one, I'd say Venolia, simply because they have been around a long time, have done Y-block pistons before, & do good work. The others may have done Ys also, but I can't say that for sure. I have had good experiences with all.

Depending on what you want the forged pistons for, I'd take a look at his hypereutectics instead. They will handle mild to moderate hits of nitrous as long as you are meticulous about your setup & fuel mixtures.

 

I have a SEALED POWER catalog in front of me. A cast piston is listed for the 272 and no forged is listed. However, PN# L-2017F20 is a forged piston for the 292, available in .20 and .60 oversize. Compression ratio is not listed for this piston, but it seems identical to a similar cast piston at 8.6 to 1 compression ratio.
For the 312, a forged piston is shown as PN#L-2018F60 in .60 oversize. I'm GUESTIMATING this at about. 9.5 to 1 compression ratio. Forgive me if any info that I listed in incorrect. The catalog specs are kind of sparce.

Of course, there are probably other manufacturers that make a forged piston for these engines also, I just don't have their catalogs.

 

Kruse,

I believe that those forged numbers are no longer being made. At least my current & past few Federal-Mogul catalogs do not list them. The website doesn't list them either, although sometimes it's hard to tell (a little user-unfriendly). I was "told" sometime ago that they were OOP. Summit doesn't list them either, though that's not the be all & end all answer.

I had forgotten about that particular 292 piston, but I believe you are correct, it was considered by Speed Pro/Sealed Power/TRW/Federal Mogul (now all the same company) to be a "stock replacement", which meant more or less the same CR, head configuration, & ring type/size/placement; the piston weight often is/was fairly close as well.

You had me goin' for a moment, until I looked at the #s again.

Unfortunately, the demand for forged Y-block pistons isn't enough anymore for F-M or anyone else to justify making them, I'd guess (although the Y seems to be making something of a comeback nowadays as people are getting tired of seeing the SBC in everything). Any of the custom piston makers can make a set, given time; some may even have "blueprints" for certain popular Y-block combinations in their system; but I'd guess that none of the makers "stock" Y-block pistons like they do the various SBF combos. Now, for cast pistons it's a different story.

Be nice to find a set of those old TRWs out there in the system....old stock...

BTW, Clevite forged pistons are actually TRW/F-Ms in a Clevite box. Might be worth a try as well.

 

I'm surprised about that because my catalog isn't that old. (2003)
However, sometimes it might be listed in a catalog and yet actually is not available anyway.

 

One thing I wonder....I have the F-M Performance Parts Catalogs, not the SP. Sealed Power is considered to be the OEM replacement line nowadays, while Speed Pro is the performance line. In the cases where a forged piston was OE from the factory, like some of the BBC engines, it was listed separately under different part numbers (before all the mergers & buyouts) & then afterwards, in both catalogs under the same number (the Speed Pro/TRW). I wonder if for some bizarre reason F-M considers them just OEM replacement & not performance? I could not find them under either Sealed Power or Speed Pro on the web site, but as I said, it is not the greatest.

Think I'm going to e-mail Barry the performance guy at Federal Mogul & see what's up.