How to identify pistons?

[mopardrt]

Going through the shop I found this box of pistons on our 318/360 parts shelf the piston box they are in says something Chevrolet, but I know we don’t have any Chevrolet parts. So how can I identify these pistons?

 

[SGBARRACUDA]

Is there a part number on the top of the piston?

 

[pishta]

They dont look like LA pistons. brows are too big and they have a ridge in the middle. 318s have dinky eyebrows and 360's have a stock dish.

340's were one sided brows as well as 273-4's, Check out Dibbons old post, Sealed Power 2369p...look familiar? Anyone have stock or stock replacement 72-73 340 Pistons?

 

[j par]

Measure them?

 

[JBurch]

Cast pistons often though not always have numbers cast into them inside, they also often have logos of the manufacture cast into them, look for them

I see in the one pic that there is an "F" cast into the piston above the pin........maybe Federal-Mogul ?

 

[teringer]

they look like cheap Badger pistons used to be about 89$ a set that's what we used in the claimer motors in dirt track racing. with the short skirt my guess is 360

 

[Krooser]

Pin diameter will rule out being Chevy pistons... that's a start.

 

[TrailBeast]

Those are 8 cylinder engine pistons.

(running and ducking)

 

[mikedevore]

340 cast low compression aftermarket pistons.