I have a 94 z28 and i was wonderin if flat top hypereueteic pistons will fix the same as stock pistons.

 

you will have to get a smaller than stock size if you go with those.They have more silicon in them than the stock alluminum ones, which means they will expand more when they heat up.If you get them,they must have a loose fit when the engine is cold.I would go with a forged piston,they are less expensive and are a great upgrade from stock

 

why are you looking at pistons? if you give us more information then we can help you better to pick a piston. forged is probably the best way to go as ali said, mainly because it will be able to handle some nitrous later down the road

 

Why are you chnaging to flat top pistons? Looking for higher compression and power?? Need a little more info OP.