archemedes

Since the idea was put into my head to figure out what's best here's some info
orged Versus Hypereutectic Pistons


As with connecting rods, we have to ask ourselves how the engine will be used when it comes to cast versus hypereutectic versus forged pistons. Cast and hypereutectic pistons are ideal for engines that witness a lot of street use with the occasional weekend dragstrip visit. Forged pistons are suggested whenever the revs are expected to be high. Forged pistons expand at a different rate than cast and hypereutectic, which means they are sometimes noisy when cold. Cast and hypereutectic pistons are both cast-aluminum pieces. The hypereutectic piston has a higher silicon content for rigidity. It can take a greater pounding than a cast piston and is cheaper than forged.. Also here's a site for info
http://www.beckracing.com/page11.htm another one
http://www.kb-silvolite.com/article....n=read&A_id=38 a highlite "Strength and ductility are often confused terms. Most all pistons are more than strong enough at room temperature, with a slight edge going to the forging alloys. At high temperature the hypereutectic alloy has the edge strength-wise. The problem is if your pistons are 800°f and strong the engine is hypereutectic alloy is a slow conductor of heat. The benefit in in detonation mode and will continue to escalate temperature to destruction. (Direct injection engines may allow higher piston top tempertures.) Ductility is the main area where forging alloys really win. Short of breaking a wrist pin, forgings usually stay attached to the connecting rod even with nuts, bolts, and valve heads sharing the same combustion chamber space. A dropped valve on a forging is more likely to stick in the piston and limit damage to the cyliner head, rod, and piston."so it looks like forged if you plan on being on the threshold of power, and hyper if you want a long life engine

archemedes

Many late model engines today come factory-equipped with hypereutectic pistons. In many instances, the OEM hypereutectic pistons can handle engine modifications that boost power up to 30 percent or more over stock. Aftermarket hypereutectic performance pistons are available for upgrading a wide variety of engines including SB/BB Chevys and Fords, as well as many late model engines and sport compact engines. Some racers are using hypereutectic pistons successfully as a lower-cost alternative to forged pistons on circle tracks and drag strips.

One manufacturer said hypereutectic pistons can usually handle up to 1.5 to 2 horsepower per cubic inch of engine displacement. Beyond 2 horsepower per cubic inch, they would recommend upgrading to forged pistons. The manufacturer also said its hypereutectic performance pistons may be able to handle up to 1,000 horsepower provided the fuel mixture and timing are correct so the engine doesn't go into detonation or preignition. from
http://www.automotiverebuilder.com/ar/eb60522.htm
all very good info that should make it easier to live with your choice

niceroc

thanks

archemedes

you are thecatalyst for me looking it up lol

RFF

Well we got the pistons covered, now how about rods lol.

archemedes

rods is just the length and shape being the difference really.I'm not about to try and find all that info since most street engines can use almost any and be fine, and when you play with different rod lengths things get tricky with clearance

niceroc

well im gwetting a deal on some BME aluminum rods ... i hear al rods arnt good for the street but BME says its fine

69z-28

yep, now all you need is a bigger engine

niceroc

the deal comes with a stroker crank and block

69z-28

o, that explains it... now all you need is everything else.lol

FORCE_FED_Z

Some nice forged dished pistons should be makin their way into a certain motor this winter...