Quote:
A14force wrote:
From what Ive read, crygenic anealing changes the molecules from austenite into martensite. Cold treat deos not have the drawback that heat treating does. This is why swiss clocks are renowned for lasting so long. Storage of their parts at low tempratures for long periods (ie in the alps for winter) led to the parts becoming very durable. Possibly likewise, with the idea of "weathering" of engine blocks in detroit way back in the day. I think that the colder the metal is, the shorter time is required to acheive anealment.
Pro240C, It's odd your choice of project car, I used to flat with a guy who put a worked Chrysler 265 hemi in a 260C. You and he would probably get on well.
Dodgeman should be a good sport, and post the page from his factory 1200 rally prep book oncon rod prep. I would do it but I don't have a scanner.
THAT'S IT!
AUSTENTITE TO MARTENSITE...man i ALWAYS forget the names of them. the austentite is the almost same stuff that 'slag' is after welding, and martensite is 4x stronger than that because it's either compressed or cast differently.
and yeah, the hemi 265 4.3L was another engine i was considering (along with the VH45DE, worked and turbo'd 202, 2JZGE and RB30 with RB26 head and making it an NA screamer) but the hemis weigh so much and make less power than the 4.0L i've chosen with just as much work to fit it.
and yes, it is a different choice of project. but variety is the spice of life
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