jcobra99

iTrader: (51)

I have a dilemma and i can't decide what i should do. I will be spending about $1400 for mods pretty soon. Basically I can't decide whether to

(1) sell my stock 243's for ($550-$600) and buy some ported heads (PRC 215's, AFR's,TFS) for around $2000 ???????

(2) Or Run with my stock 243's i Already bought, and a Ported 92/92????



I will be going with a larger cam (235-240ish)regardless of what route i choose. So, don't base your input off my current cam. I'm looking to gain the most power I can on the budget i stated. I know the heads are proven to show huge gains ,but will the stock 243's and a Ported 92/92 show similar gains???

Let me know what your opinions are guys.

RARON455

iTrader: (35)

I have seen gains of up to 40 Hp from a good set of heads, never even heard of those kind of numbers with just the intake. Personally Iwould go with the heads first, I have a ported fast 92 setup on mine but also have a set of PRC heads to help make the best power.

jcobra99

iTrader: (51)

Yes True, but i'm comparing (stock 243 heads + Ported 92/92) Vs (ported heads and my current ls6 intake). I know 243's are good for 15rwhp or so and a ported fast is good for 20rwhp-ish. I figure I'll pick up 35-40rwp with the 243's and Ported fast. Would I gain much more with some good heads and running my ls6 intake manifold?

SnIpEz

iTrader: (4)

Dont know if you'll gain more by running the ls6 intake manifold, but I'd buy some ported heads personally

fatmat80

why not just have the 243s you already own blessed by tea and call it a day. You could also have your ls6 touched up a bit. if u have some change left over.

teke184

iTrader: (5)

real tough call.

both routes will make great power gains.

if you can honestly afford the AFRs you'll probably make more power with them than the other option.

everyone criticized me for going with the ported FAST on my setup, saying i wouldn't gain much since it was cam only and already had the ls6.

but back to back dyno runs proved otherwise...18hp and 12ftlbs peak and 5-10hp and torque from 3000rpm and up. and that was a home ported intake...nothing $$$.

Benner

iTrader: (2)

you'll benifit more from a ls6 manifold with aftermarket heads, than you would stock heads with a 92/92 combo and stock heads.

02*C5

iTrader: (1)

AFRs have your manifold ported and your tb ported and polished, that should be good.

Marc 85Z28

iTrader: (8)

You're math is off.

Both of those heads are a good bit over $2000. Then you need to factor in hardware, gaskets, and fluids. If you sell the 243s figure out of pocket expense around $1800.

If you sell the LS6 intake and throttle body, the FAST intake and throttle body out of pocket should be around $1000.

There is an $800 difference, and additional labor for the heads.

Furthermore, with that larger cam you want: the LS6 intake is going to restrict power above 6400rpm, whereas the FAST setup will get you another 400-500rpm.

My suggestion would to be to go with the FAST setup. Sell the LS6 intake and throttle body. Keep the 243s, but get a good valve job done and mill them a little. That should put you in the $1400-$1500 range you're aiming for and make the most power of any scenario.

jcobra99

iTrader: (51)

I've heard good things about TEA's porting ,but are they up to par with the best heads out there like AFR's, TFS, or ET's????

I'm seriously debating the AFR's. My TB is ported and i don't think i will gain much of anything from porting my ls6 intake.

Yeah, i was just throwing a ballpark out there. Nothing in stone or anything. I also put that budget amount there so people don't try to convince me to go with a new forged 427 or something that's not even currently an option lol


I think I'll most likely go with some nice heads first. It just makes more sense. Then when i have the cash for a Ported 92/92 All i have to do in the future is swap out my ls6 for the fast and keep my heads installed.

00T/AWS6

iTrader: (17)

I was kind of in the same boat. I had Stock 241's though and an LS6 intake (sitting in garage). I found a cheapo used ported 92/92 (vengeance was doing a sale on there's idk if it ended though) and going to save up for some TFS 220 as casts and play around with those.

jester ls1

The heads are the way to go if you can afford them, by the time you have them installed with tune and you know you want to replace the push rods and rockers you will be tapping $3500.00 You could by a LS6 short block for that amount of money.

Buy the intake and spray!!!

99 Blue Bird

iTrader: (3)

like stated above i would use the cash to have tea work their magic on your 243s. and save whats left over and a lil more cash and than do the fast setup. i would take some nice ported teas over afrs. the flow charts for teas are great. look on their site--------->

thunderstruck507

iTrader: (18)

Heads for sure

And look for a deal on a used FAST later, IMO its not worth but about half what they charge for one new.

teke184

iTrader: (5)

he already has a cam...likely has the right pushrods with it.

no need to replace the rockers unless hes going TFS w/ the altered valve angle.

factoring in things like bolts and gaskets is mute because he'd be doing those things anyway if he just swapped on his 243s.

jcobra99

iTrader: (51)

My bottom end is perfectly fine. I have no need for a new motor and i don't plan to spray at this time. I have pushrods and if i need a different length I'll sell/trade mine for them. I'm getting a full dyno tune after i do the install regardless of which setup i choose.

Unertl42

iTrader: (63)

Heads FTMFW!

eamador11

heads now and FAST later. LS6 intake will support alot of power.

garygnu

with the new fast 102mm intake released, there will be some used 92mm for sale soon .get the good heads first and wait for a good deal on a used intake.

Blk_Ws6

iTrader: (4)

^^^ smart!