Formula98ramair

iTrader: (1)

I was told the 806 heads on a 98 LS1 do not flow that good so I was going to put some 241 heads on would it be worth it ?

Damian

iTrader: (89)

From a stock to stock swap? No it wouldn't be worth it. You'd gain maybe 5-8 HP if it's a completely stock car.

SS1875

iTrader: (34)

243's would be a better choice.

ae13291

iTrader: (8)

if you were doing H/C then i would replace it with some 241's or maybe 243's you can ge the 241 heads for pretty cheap now a days

Formula98ramair

iTrader: (1)

I can get the heads cheap and they are brand new never ran I was all so going with LS6 cam and intake We are going to port them some too

miamifan3413

iTrader: (1)

I would get the 806's ported and save the dough IMO....if your gonna replace the heads go with something worth while like AFR's

miamifan3413

iTrader: (1)

well if you can get em cheap then go for it

SOMbitch

iTrader: (8)

Once they are ported there will be NO performance difference. Put your $$ somewhere else.

Formula98ramair

iTrader: (1)

Are you saying not to get the 241 and just port the 806s ?

5_02ls1

iTrader: (20)

yes he is.....research before you touch those heads and dont just go and cut just anyplace....there are certain places in the ls1 heads that are crucial to gainig velocity and flow....you cant just jerk out the dremel and start cutting anywhere...

Formula98ramair

iTrader: (1)

So is it worth getting the new 241 or not

RevGTO

iTrader: (12)

Depends on how cheap they are and if you are definitely going to get them ported. If you can buy 'em real cheap, have them ported by somebody who knows LS1 heads, then you can pull off the 806's and bolt on your fresh ported heads.

The advantage over porting your 806's is that you have no down time while the heads are being ported - not that the 241's are going to do anything special for you.

SOMbitch

iTrader: (8)

The advantage of the 241's is the casting is just a little smoother. Once ported no difference. You also need to buy center bolt valve covers with 241's so a little more $$.

You will really see better gains for your $$ doing bolt ons first then a cam then heads if you can't do it all at once. Better heads won't pick up a lot if the rest of your setup can't support it IMO.

wht01ws6ta

iTrader: (45)

Not sure about what you want to spend but if you're going to the trouble to swap to another set of stock heads I would suggest 243 heads and get an LS6 intake since you have to pull that off as well. If you can swing a cam swap then you'll see some nice gains!

99NMB

iTrader: (7)

Intersting information

the 98 806's were a 69 cc combustion chamber
the 01-02 241's were a 66 cc combustion chamber.