440 pistons Help
Bob you mentioned these
http://www.summitracing.com/parts/UEM-KB236-030/
Is that the right ones? Also anything special to them. You say 10.5 comp?
Thanks to all that have replied.
I'll assume those Stealth heads are closed chambered right? If this is the case, the 236s have a slight dome, but they are designed for an open chambered head, if you notice where the "step" is on the piston, its to help close up the opened area on an opened chambered head, these stepped domes on the KBs are about .040", this will take up most of the .039" gasket & get mighty close to the head if its closed, so you don't want that, i'm sure these pistons sit below about the same as the 237s, but they have that flat dome pad, this is a nice design for an opened chamber, it helps step up the compression about a 1/2 point, but unlike a true "domed" piston, this design still lets the combustion have "flame travel", were as a full dome blocks this, causeing carbon build up on the back side of the dome where the burn is weak opposite the plug, so if the stealths are a closed chambered design, you want to stay with a flat top piston, but getting it as close to 0 deck will give you the "best" quench!!
You can live with .059" or so as a quench, it'll still work/perform quit well, but having the "best" quench & cam profile allows you to run on a lower octane & higher compression, but you'll be fine with aluminum heads & 10-10.5 compression easy, so i'd say, either the KB 237s or the TRW 2355s for forged, definitely have the rotateing assembly balanced either way you choose, IMO, i'd spend alittle extra, get the TRWs, & a nice set of I beam rods, you'll have a very stout short block that'll take alot of abuse if needed, even with a cast crank if thats what you have, & if for ANY reason down the road you deside to juice it (because you never know), your good to go.