oddwraith

iTrader: (1)

How much would it cost for me to get my heads ported and how much rwhp would it yield. Just a curiosity. Toying with the idea

oddwraith

iTrader: (1)

Also, would this be the time to do a cam swap? What gains with just the ported heads by themselves?

TooLateVTEC

iTrader: (2)

Getting the heads ported on a stock motor would be a waste of money to me personally.

Your opening the heads up for more air flow but not adding anything else to take advantage over that...example being a different camshaft or a blower.

Dont have a guess on the RWHP, but I bet the SOTP feel would be minimal.

oddwraith

iTrader: (1)

Yeah that's what I thought. Would it be a good time to drop a cam in then, while the heads are off? If I do the cam, do I HAVE to port the heads or will the 241s flow well enough for a milder cam setup?

billymz28

stock ls heads flow really well seen quit of few people running with stock heads with cams. There are lots of head choices out there that are not to expensive that do real good like the patriots and the 5.3 heads.

SOMbitch

iTrader: (8)

IMO not worth it if your not doing a cam. If you pull'em $5-600. Then you need springs ($250 + or -) to handle the cam. Might as well put fresh lifters in it while the heads are off ($125 for LS7). Lifter trays ($35). Most will suggest a new timing chain and oil pump ($175) while you are there with cam swap. Then add in the gasket set and fluidsand it adds up quickly. You may want to do knock sensors and harnesses too.........

The horsepower you make depends on the port job and the cam you go with but 80-100 is very possible.

corvet786c

iTrader: (6)

I would just save money and by a good set of heads. Dont be cheap in the head department. its very important part of the engine.

TooLateVTEC

iTrader: (2)

How much RWHP are you looking to make?

If your looking for around 350-380 you could save the money on porting the heads and just put in a 224 or 226 duration camshaft from TSP or Thunder racing and go that route.

Or you could spend another grand or so than you would for a cam swap and buy a used procharger or vortech outta the classifieds and go that route.

98Z2885

Why not just buy a nice set of 243 heads out of a 02+ Z06? I am going to go with those heads and a LS6 intake with a M6 cam. Everything has to match to make any combo work right. cam heads intake injectors maf tb etc etc. Ive seen a lot of fox body guys throw a 70 mm tb injectors and maf on a stock car and actually hurt there track times.

oddwraith

iTrader: (1)

What about either A( cam only swap with the existing 241s-looking for 375 or so at the wheels for that combo?)

or

B) Just throw on some used 243s and leave the cam alone?

*I'm hurting for cash right now so I'm looking for cheap upgrades. First one I'm doing is 373s and maybe a nice stall. Headers and y pipe. Then possibly the heads or cam or down the road a H/c combo?

MonmouthCtyLS7

iTrader: (6)

All depends on how agressive the port job is.

oddwraith

iTrader: (1)

No porting, just stock 243s I'm thinking? Or stock unported 241s with a mild cam 224/224 or something at 114. ?

98Z2885

On porting the stock heads you are looking at the labor, bigger valve springs collectors, and rr's. I just bought a nice ported set of 243's out of a 04 Z06 complete with rr's for 650.00. just adding bigger heads isnt going to really give you the power you are wanting. I would suggest matching everything. If you are gonna put the heads on, why not just swap the cam out while you are at it? Instead of tearing it down twice. I know how money is, thats why I am just collecting parts now, and then I will have it all done.

LS1Formulation

iTrader: (13)

I have CNC ported 241s and I wouldn't trade them for anything. With a TR224 cam and a mail order tune, I ran as fast as 119 mph in the 1/4 mile weighing in at 3600 LBS. Don't let anyone tell you that they suck ported, they obviously have never ran them.

flintwrench69

iTrader: (11)

What did the port job run ya on them?

01ssreda4

iTrader: (96)

I was just about to ask this as well.

To the OP, you're an auto? Stall should be first on the list. I speak from experience as i stalled mine before any HP mods.

blue00ZZleeper

iTrader: (5)

you can port the heads yourself......I run ported and polished 241's with a blower and it flows good enough for 580...and if your that far do the cam and valvesprings.

oddwraith

iTrader: (1)

I would like to stall my vehicle but am weary of the stock tranny? I can't seem to shake that fear of a stall. Even though I loved driving my dad's built El Camino with a stall, I seem skeptical about it.

oddwraith

iTrader: (1)

I don't believe I would personally have the know-how or tools to do that myself? Sounds like you have a real beast on your hands

zacht

iTrader: (18)

ive been tossing around these ideas also. when i get home my buddy has 40k mi LS6 heads and intake he will sell me for 400 bucks (he just doesnt need them sitting around). i would think a slight port/valve job would gain a little bit over 241's. especially with the smaller cc and the larger intake runners. I wouldnt feel comfortable porting heads, id like to see them on a flowbench before i threw them on my motor, just me tho. but beings im thinking of a cam and im gonna swap intakes, why not throw on some 243's couldnt hurt right?

but then again, you do see cam swaps that get upwards of 400 to the ground.