Pushrod question

[WhiteOnGreen]

My 383 engine bent a pushrod, is time for buy a new set but I saw in Mancini Racing two apropiate sets

http://chucker54.stores.yahoo.net/hydbchromemoly.html
or

http://chucker54.stores.yahoo.net/benhypusech.html

Difference is heat-treatred, any real benefit?

[metalstorm440]

depending on your cam lift,rpm,spring psi and any offset rocker angle.

[Dmichels]

find out WHY the rod bent first

[WhiteOnGreen]

depending on your cam lift,rpm,spring psi and any offset rocker angle.

The previous owner installed the purple 484/484 but I go to install the Lunati #302 cam recomended by Ron

find out WHY the rod bent first

The history begins when an onlooker asks me to show him the engine, that in Argentina there were many cars as mine and that it understands much of these engines, later, in the carburetor He gives a sudden acceleration and insane high rewinds  , from this moment noise in the valvetrain.
I pulled the valvecovers and notice a slightly bent pushrod and suspect that the lifter also 

[metalstorm440]

over reving the engine is not a good thing and you likely floated the valve and let the push rod come unseated and bent it.stronger valve springs can reduce the risk but is not a cure.I dont think a heat treated push rod is needed untel you go more than a .528 lift cam or plan to rev the engine past 6800 rpm all the time.That info is the basics of what you are asking I think.

[b5blue]

http://www.pushrods.net