The Autotec pistons for the 300 six are ribbed similar to an F1 piston.
The stock pre 1987 pistons and pin weigh about 820 grams.
The 300 six Autotec piston and pin shown below weighs 574 grams.
As Firepower stated above, pistons at room temperature are not round and they are wider at the bottom of the skirt than at the head.
Im shooting to mill out billets for my engine to get a good feel for it, i plan to make my own i6 casting and head casting as a 2.0 version of the 300 like how the 350sbc evolved into the LS 5.3
Im shooting to take the shortcoming away like the poor port flow, and such but make a streetable engine with a stock powerband from idle to 4k like what the 300 was meant for, i brought up the cleveland head in the ither post to get an idea how it performs in the low end, the ports are too big so it kills low end power, stuff like that
Ive settled on a 2V ohv crossflow motor with the timing gear just take the roughness of a stock 300 polish it up, i plan to cast a cant valve head but with some cleverness involved, but back to the main subject,
I really was hoping to get some notes on how i should setup the ring lands, stuff like that for a good daily, with the intention of knowing that some people will want to make power in the top end so im pre emptively having it setup to handle the power but im really shooting for the durable low end grunt a 300 was known for just in a modern package