NosFed99z28

What is the diffrence in the 241/853 head casting can some one please help

Ric

Let's see here, 853 - 241 = ummm, looks like 612!

Seriously, I believe the 241s are later model heads, and they flow better than 853s, though I dunno how much better.

NosFed99z28

thanks man can anyone tell me anything else about them

AaronR

iTrader: (8)

From what Ive been told there is little difference in flow and none when ported.

FUN LS1

They same cast, just the 853 is sand cast, though , which makes the surface a little rougher, and if both heads are stock the 241s will flow better. If the heads are ported, then they perform the same.

Xtnct00WS6

iTrader: (8)

The main difference is in the way it's cast. The 241 has the advantage till it's ported, then it doesn't matter. This has been covered numerous times, try searching first.

NosFed99z28

thanks just wondering because when my car was under warranty i broke a pushrod and the dealer ship said it had a cracked head and put a new one on it well Zmoneypit just did a head and cam on my car (runs like a beast now) and i noticed the casting numbers were different thanks everyone

orangeapeel

iTrader: (18)

The castings are different, and are found on different year cars.

Abdullah

iTrader: (2)

couldn't be the 853 casting are premiter bolts and 241 are center bolt? or i'm mistaking?

camaroextra

iTrader: (10)

no the 853's were center bolts also

Studytime

iTrader: (15)

My 806 heads are the perimeter bolt heads. These are the '98 heads.

Ben T.

8GTOKLR

iTrader: (6)

the dealer will probably put 241's on. If you luck out they could put 243 LS6 heads

Z'mnypit

iTrader: (58)

Yeah he didnt get that lucky, The thing is the left one side a 853 & the other a 241. So he had two different ones on the car. Stupid all "stealerships"

NosFed99z28

Yeah i thought it was purty dumb my self but thanks everyone for the help