First, I have searched previous post on this and got good info. I'm leaning toward forged pistons over hypereutectic on my 402 rebuild that will be bored .030. For the most part everything else will be stock at this point, but I wanted to prepare for future plans of building it up more (high perf street/causal strip). Does this sound reasonable or is it overkill?

Thanks in advance!

For pure street use stock component application, forged pistons are not necessary.

Forged pistons require greater piston wall clearance.

Hyper/Cast pistons can be fitted very tight for street use.

Stay away from Ketih Black hyper/cast pistons.

I put forged pistons in the engine I had built which is a mild hydraulic cam 454.

I bought a used engine for my second drag car. It has hyper/cast pistons. If I make it through this drag season I will replace them with forged next winter.

My opinion is that forged pistons are (the best insurance) you can buy for the extra couple hundred dollars! I f you have even questioned the idea of hypers ( obviously on your mind) GET FORGED!
Imagine going down the road and wondering if a hyper is going to explode if you decide to hammer it, NOT FUN !

My opinion is that forged pistons are (the best insurance) you can buy for the extra couple hundred dollars! I f you have even questioned the idea of hypers ( obviously on your mind) GET FORGED!
Imagine going down the road and wondering if a hyper is going to explode if you decide to hammer it, NOT FUN !

That's along the lines of what I was thinking. When I beat on it, I'd rather have that insurance than having any doubt in the back of my mind.

Your choice of 402 pistons is limited anyway. Go with the TRW/SpeedPro L2354 (19.8 cc dome) with closed chamber heads for 9.5 - 10/1 CR.

I totally agree with GRN69CHEV in goig with te speedpro's for the street,they are not tat expensive but they are good quality insurance @ approx $300 esp if you may up the power in the future for a mild street motor .

My machinest said he was surprised at the quality of the speedpro forged pistons i got (2240's) for my 396.

He said the ballance on them was very good ,the size piston to piston was very tight,and the piston shape was not distorted at all when he checkd that too and was generaly impressed for lower priced forged pistons when compaired to others cost 2x-3x more. Yeh they meay be a little hevied but if your not running a 8500-9000 rpm 8 second slammer they are just fine.

Scott

Better yet, try these with open chamber heads:

http://store.summitracing.com/partdetail.asp?part=WIS%2DPT039H3&N=4294925232+4294839001+4294908216+4294840121+115&autoview=sku

As mentioned....forged is great...especially if you ever decide to bottle feed it later on....might as well get the dirty work done now while it's all apart versus having to do this twice.