Good Day Gents:

Was it here I saw a minor treatise on the ThriftPower (144 - 300) crank over the years? I remember some1 laying out forged v regular type factors and years for these changes. There's questions more on the "small block" ('small i6' 144, 170, 200, 250) than the "big block" ("big six" 240, 300) as a fella wants to do some 'increase power' mods on the peppy 200/3.3 using a stock crank.

Seemed to me it said: early yrs were regular, later went forged or nodular or sompin, and back to the less rigorous thru to the end (early 80s). It came out in '60, the upgrade might have been in mid or late 60s, and they went back down thru to '83 when ending.

Any valid data appreciated (cites help). Thank you so much.

 

Can't find anything. I think a stock 200 crank with 7 mains will take anything you can throw at it.

 

Thanks for the reply-back. (I'd agree but...
That's not his issue. He's tryin 2 find out
*make up
*over the years.
I think its one of those science projects w/multiple engines and so on.
U know these guys - flow benches, machine shops, dynos, etc

 

Like I said, I can't find anything. I know 300s had steel cranks in heavy trucks, but I'd bet the smaller sixes were all cast iron. Here is something to slug your way through, not sure it discusses material, but it's the only thing I can find without getting a splitting headache on this. Good luck to the student:

https://www.eng-tips.com/viewthread.cfm?qid=110508

 

Thanks for the link.

Helps some1 like me, probably not them. I'm probably a lill like U, I read dwn a few entrys'n will give it a rest 4 awhile (till able to follow deeper). Still:
they just seek ID info as the sort I thought I saw somewhere (just as esoteric to me).
I'll pass it on w/your name attached as the researcher~

Thnx again

 

here's one frm our buddy Down Under:
"... in lines six cylinder cranks were lowest tier in line six technology, always cast nodular iron..."

for the full thread see entry #6 at:

https://fordsix.com/viewtopic.php?f=...22b50523527506

Dean (or xctasy) all ways has it down...
Catch em over at 4eyedpride too.