connexion2005

iTrader: (49)

This is a wierd ? but what type of gains could be associated from doing a head swap considering your a decent bolt on car? I plan on running bone stock 243 heads with hardened pr's and dual vs's. However, I am a college student and therefore I am on a college budget (20 hours of work a week). I plan on running the tr224 or tr228 later on down the road but am kind of looking for the heads first. What do you think the benefits would be from swapping out crappy 806's that came on our 98 ls1's for the 243's and then going with the cam setup a few months later after part collecting? Also would you probably need a tune to compensate for the additional flow?

SERIALPIMP

iTrader: (4)

Just be patient,
wait and save and do heads and cam at once,

You will be happier in the end,
and its probably easier to do it all at once, then in two steps,

You just have to be patient enough to save up and do both,

s346k

iTrader: (4)

you might see 10-15whp swapping the heads alone. why are you going to use dual valvesprings on the stock cam?

connexion2005

iTrader: (49)

I just figured I would have the heads completley set up awaiting my cam install. Would there be a harm in running duals on a cam that has more than .100 degrees of lift to spare from their potential?

Oh and to the above thread, I know that would be the best route...lol. Im just so impatient and sometimes feel I'll never get it done unless I buy it piece by piece. I suppose I could still go that route and by piece by piece and then install at once...hmmm...

DONAIMIAN

iTrader: (18)

Your crappy 98 heads arent as bad as you think. The only port difference betwene thoes and the 241 heads are the way theyre cast. The later casting methods produced a smoother surface in the ports.

As for your question, its way too much trouble to swap a set of unported heads. I just wouldnt bother with it and would save untill you could afford something better.

connexion2005

iTrader: (49)

Interesting, I didn't realize they were that similar. I've done some research on flow numbers though and it seems that the 243's stock flow numbers still outflow nearly all of the ported and polished 806's and 241's. Maybe I saw some bogus numbers but from what I've seen the 243's dominate at the higher flow rates. Like I said though I'm not necessarily in need to have anything to to powerful. My ultimate goal is a 390 to 410 rwhp car that will run low 12's/ high 11's and be a great street car. From what I have seen, cam only cars with the tr224 and tr228 are accomplishing this. I just figured that at 100k miles that I may want to swap out my heads with something newer that flows better.

ProStreetBiker

806 heads aren't that bad. its more the valves then anything.

01Z28M6

I'm doing the heads and cam right now. I wouldn't just do the heads and later on the cam. It's doing the work twice and it's a lot of work.

I can't believe the heads will only net 10-15 hp. The whole GM package is 70 rwhp or more. That would mean my LS6 cam is responsible for 80 percent of the total. I guess I'll find out.

2000KnightRider

iTrader: (21)

I agree about waiting. I already have my 243 heads w/comp springs, Comp pushrods, ARP bolts, gaskets, LS6 intake and Stall on the way. I need to save up for the cam so Im waiting to tackle it all at once...prolly this summer.

cws T/A

iTrader: (3)

https://ls1tech.com/forums/showpost....8&postcount=14

the Ls6 intake will knock down the cfm alot

connexion2005

iTrader: (49)

what length pushrods will i need if i run unmilled 243's with gm gaskets and a tr224 or tr228 cam? will 7.4000 lengths work?

2000KnightRider

iTrader: (21)

Thats what I'll be running.

connexion2005

iTrader: (49)

cool... 7.4000 it is