Dragkid1917

iTrader: (2)

My frend has an 00' WS6, i knew he had his engine rebuilt because it blew up before, but when i was lookin over his car the other day i saw it had 853 heads on it. My 00 T/A has 241's... what exactly are 853 casting heads?

z28misfit

iTrader: (3)

something in the way they casted them i guess is different to my understanding, see what others say.

418redz28

iTrader: (10)

its just the earlier ls1 heads from 98 to 00 only about 5 hp diffrence

Shawn MacAnanny

iTrader: (12)

The 853s are the same cast as a 241 jsut a different casting method. The 853s used a sand casting method where the 241s used wax or something. I forgot what the casting media is but the 241s are jsut smoother thats all. Wouldnt notice much of a difference between the 2.

241s cam on late 2000 engines through 2002 engines. IF you have the 241 heads you also have upgraded rod bolts in your bottom end. I have a late 2000 engine as well.

Dragkid1917

iTrader: (2)

nice.. i got 241's my boy doesnt thoo, thats good to hear that the bottome end has the better bolts because my engine see's 6800 alot.

Apollo0526

iTrader: (3)

They are alsmost the same thing....either head ported will flow about the same