just curious if my snake came with hypereutectic pistons. i seem to be getting mixed answers from elsewhere, sources appreciated.
the Hypereutectic ones are the forged aluminum/silicone alloy ones, generally with the teflon pads on the major and minor thrust sides to reduce friction from the connecting rod geometry.. any idea if these are the ones that are used? or just forged pistons?
They were used on all of the N/A 4V engines. The S/C 2003/2004 went forged.just curious if my snake came with hypereutectic pistons. i seem to be getting mixed answers from elsewhere, sources appreciated.
Don't forget about tight PTW (piston to wall) tolerances. I consider that a big negative, especially if you have any thoughts about a top end run.Precisely, the stockers are heavy slugs but plenty strong... thats the only negative aspect i can come up with. Less weight is always a plus on these beefy ponys.
just curious if my snake came with hypereutectic pistons. i seem to be getting mixed answers from elsewhere, sources appreciated.
Don't forget about tight PTW (piston to wall) tolerances. I consider that a big negative, especially if you have any thoughts about a top end run.
omg, this thread is full of just the dumbest shit I've seen in a long time.
The difference is in the thermal expansion properties. Hypercrapola pistins expand very little between cold and hot vs Forged pistons. Ford used them because cold, they sealed very well so emissions and fuel economy was more consistent from a cold start to operating temperature.Someone correct me if I'm wrong, but I thought that one of the best benefits of hypereutectic pistons was that they had a better "self-lubricating" property that made them preferred for high piston speed applications such as stroker motors? I've always heard that hypereutectic pistons are only recommended in a NA motor.
If what I have always heard is correct, then we should have forged pistons in the Cobras.