cast or forged How can you tell

[wet77]

I bought a 454 BBC and am looking throught the parts, someone has been there before. ARP everything, Manley pushrod guides ect....
My pistons are stamped on the top with L2346 060
My guess is that the 060 stands for bored 60 over.
There is also a triangle with a letter T in the center of it.
Is there any way to tell the manufacturer or if they are cast or forged?
Thanks:cool:

[wet77]

I will double check, pretty sure thats the #
The motor was built a long time ago and just not used alot.
Came out of a 67 camaro drag car:D

[Fiat48]

Check the number against this list of TRW pistons: http://www.flatlanderracing.com/trwchevy454.html

[Blown 472]

Look at the parting line, narrow=cast, wide=forged.

[Fiat48]

You must be thinking cranks, Blown. You have been rather cranky lately anyway.:D

[Blown 472]

Originally posted by Fiat48
You must be thinking cranks, Blown. You have been rather cranky lately anyway.:D
Oh silly me. It's that car I tell ya, driven me nuts.:yuk:

[HyPerformance79460]

isn't it true with pistons like blown said thin cast thick forged thats was what was I was taught and just taught in my engine design class.

[wet77]

here are some pics of those pistons:D

[wet77]

pic1

[wet77]

pic2

[wet77]

pic3

[wet77]

pic4

[Oldsquirt]

Those are Federal Mogul Speed Pro Powerforged pistons for a 454. Catalog lists them as having a .210" dome. Compression varies from 10:1 with 119cc chambers to 11.8:1 with 100 cc chambers.
You can get more info by going to the Federal Mogul catalog search: Federal Mogul Search (http://www.21cgt.com/FMWebCatalog/default.htm)

[wet77]

Thanks for all the help:D :D :D