forged or hyper?

86ttopmustang · Sep 16, 2006

I am about to start rebuilding my motor and are unsure which pistons I should order.

the motor is going to be n/a, with trickflow heads,b-cam, and most of the usual bolt ons.

wat do you guys think. and its goin to be a daily driver

86bluecobra · Sep 16, 2006

I say go with what your budget can afford. I would say go forged. Remember all forged pistons are not the same. Don't get high silicate forged pistons.

N8Miller · Sep 16, 2006

forged without a doubt

PS: all guys with an 86 replied to this topic so far

Daggar · Sep 16, 2006

For an N/A application, I'd go for the hypers. The clearance tolerance will end up tighter overall.

The forged offer a little more insurance for a blown a juiced app.

What's that car in my sig? An 86? Hmmmmmm.

bubba-dough · Sep 16, 2006

Forged is the way to go but like mentioned above stay within your budget. Are you staying 302 or boring it out? Check into some of the kits from some of the major players. Sometimes for just a bit more you can get a forged set. I was originally just gonna build a 306 with forged pistons because I spray but ended up going 347 from CHP because it was only a few hundred dollars more than a 306.

Daggar · Sep 16, 2006

bubba-dough said:
Forged is the way to go but like mentioned above stay within your budget. Are you staying 302 or boring it out? Check into some of the kits from some of the major players. Sometimes for just a bit more you can get a forged set. I was originally just gonna build a 306 with forged pistons because I spray but ended up going 347 from CHP because it was only a few hundred dollars more than a 306.

I see no 86 in your car pics.... move along!

bubba-dough · Sep 16, 2006

Daggar said:
I see no 86 in your car pics.... move along!

Come on guys.............................

Daggar · Sep 16, 2006

bubba-dough said:
Come on guys.............................

Ok... you can play with us just this once but if there's anything good in your lunchbag... we get it.

85_SS_302_Coupe · Sep 16, 2006

Forged.

'85 coupe FTW, flat top '86 pistons with no valve reliefs are teh lose.

86ttopmustang · Sep 16, 2006

well originally I wanted to do a stroker kit but I was told by someone that they're not as reliable as à 306....I'm not sure why they told me that so then I was looking up to do a 306,but wasn't sure wat the difference was between the forged and hyper pistons

bubba-dough · Sep 16, 2006

86ttopmustang said:
well originally I wanted to do a stroker kit but I was told by someone that they're not as reliable as à 306....I'm not sure why they told me that so then I was looking up to do a 306,but wasn't sure wat the difference was between the forged and hyper pistons

I dunno why they would say that. Mine is a daily driver and it never fails to start and doesn't use any oil. My opinion would be do the stroker.

Daggar said:
Ok... you can play with us just this once but if there's anything good in your lunchbag... we get it.

ok you can have my sammich but not my snack-pack!!!!!!!!

86ttopmustang · Sep 16, 2006

ok..I figured that guy was an idiot....now would it be bad if I did the stroker kit with the hyper pistons?

bubba-dough · Sep 16, 2006

I haven't seen a kit with hypers so i dunno. I got mine from Coast for $799. That was Probe rods, Scat crank, Probe forged pistons, Clevite bearings and rings. http://www.coasthigh.com/Specials/Specials_current.htm I am sure that there are other good brands that some other guys can tell you about but Coast is the only one I have had any experience with.

Daggar · Sep 16, 2006

I would just like to note that hyper pistons are not the weak link that everyone makes them out to be. They are a fine piston material and can stand up to good deal of abuse. They'll take more of a beating than cast pistons will are a great option for N/A and well tuned boosted application. If you have the opportunity, take a look at Groverdill's combination. He's boosted the crap out of it and they hold up very nicely. What they will typically not stand up to is an ameteur, out of whack, tune on a boosted or juiced application. Detonation will kill them faster than they would your typical forged offering but it should be known that they are in no way a bad offering. In some ways they are even superior to forged pieces.

That said.... if you even "think" that one day your combo might see nitrous or boost. I would (and have) also opt for the forged pistons. They're a bit tougher and will handle more abuse or "mistakes" in tuning that the hypers will.

N8Miller · Sep 16, 2006

i agree with bubba, eventhough he doesnt own an 86. for the money that your gonna spend on a kit, and the $100 you MIGHT save by getting hyper pistons, just get some forged ones.

2000xp8 · Sep 16, 2006

Some of you guys say forged, BUT, how often have any of you seen a blown piston in a stock block? Almost never.

If the block can only handle 450hp and 6500rpm, there really is no point in putting in a piston that is equipped for 700hp.

BTW, hypers don't expand and contract so they will likely burn less oil.

If it were a 347 and the car was blown, i may say forged so you can get a dart or R block done you can swap internals.

BTW, i've seen the hyper version of the FMS 347 go 11.0 all day NA in a regular street car, no cage, daily driven until recently.

N8Miller · Sep 16, 2006

2000xp8 said:
Some of you guys say forged, BUT, how often have any of you seen a blown piston in a stock block? Almost never.

since ford put forged in their blocks from (atleast) 86-93, thats why we say forged.... because you dont see blown pistons!!!!!

I have seen a guy in corvette run mid 11s on hyper pistons.... and a 125 shot... that he had for 6 years.

GroverDill · Sep 16, 2006

NA Hypers are lighter and seal better.

the block is the weak point not the pistons.

86bluecobra · Sep 16, 2006

I agree dill but i would rather over build for upgrades then underbuild. Keep the 86 Stang responces coming.

GroverDill · Sep 16, 2006

putting high end parts in a stock block, not the best idea....

when the block lets go, who knows if that fancy high end rotating assembly gets beat up or not.

544rwhp on stock 93 short block, hypers and all, but hey it is your money.

forged or hyper?

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I need NOS....make it 2 of the big ones

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