318 pistons
If the Summit pistons are that cheap then it wouldn't be worth trying to find a stock set even if they were available??
treblig
Not exactly sure what you're saying here...are you asking me would it be worth it to look for a stock type specific replacement piston in oversize (pending inspection by a machinist)?
Sure, can't hurt to look-but I'm a bit of a cynic and doubt they exist except in some old musty closet somewhere in rural Kentucky, therefore, for all intents and purposes, unavailable.
Or...
Would the benefits of about ~.5:1 compression from a stock replacement type piston outweigh the reduced cost of readily available pistons from Summit?
Not in my opinion...unless he were able to find a set of those slugs and his block was good enough to take them.
Current assertions are that 1 pt of CR in a given combo is worth 4% improvement in hp...he may yield 2% by that logic. So, for every 100hp, a 2hp increase...yeah, I'm not writing home about that one.