Unertl42

iTrader: (63)

I bought some 243's since I'm going to install the Vengeance VRX3 cam, but the more I think about it, I was thinking I might as well have the heads ported. I've searched and can't find where, or an estimated price. What kinds of gains could I see from ported over stock 243's.
Thanks

jetlag

iTrader: (32)

I think you should sell them to me.

But yes, if you have the money to spend, definitely get them ported by a good shop. I'm sure Vengeance could hook you up with that.

Damian

iTrader: (89)

If you can afford it, of course the answer would be yes. A ported set of 243's is worth between 40-60 rwhp depending on who's porting them.

You can call Patriot and see what they'd charge to run yours through the CNC mill. I don't think TEA does outside purchased heads anymore. If not one of those, my machine shop has a pretty damn good porter that ports LSX heads for $800.

If you don't get them ported, at least cut them .020. You will have plenty of PTV room with that cam, and cutting .020 off will bump compression up a good bit. Basically free HP/TQ.

KMS.1320

iTrader: (1)

When are you planning on doing this? I'd trade some stage 1 Patriots with the dual springs straight up for them if they're stock untouched 243's, but I won't be pulling the motor for another month or 2.

98blueSScamaro

iTrader: (14)

this is what i would do and maybe a good valve job

willyfastz

Choice wisely on who ports your heads, and if you want a good job don't go with the cheapest one. The CNC job on our 243's is around $1000 alone.

Jon@Texas-Speed

iTrader: (18)

We can get you setup with fully CNC ported heads and CNC valvejobbed for under $700. Different valve options as well as spring upgrades are available as well. We also offer milling at no additional charge. As mentioned above, choose wisely. There is no need to go through a middle man that is trying to make a buck on someone else's work and has no CNC/porting experience at all. Shoot me a pm with what you are thinking about getting done and we can get one of the best if not the best CNC'd 243 castings on the market!

Jon Reynolds
Texas Speed & Performance

PREDATOR-Z

IMO, Best proven consistant 243 CNC I've seen around for street 243s is LIVERNOIS.
They keep the runners real small so you benefit from added CFM, great for throttle response and below the curve trq.

Old SStroker

I have $1000, now under $700...do I hear $500?

Brian @ Texas Speed & Performance

iTrader: (1)

Most people appreciate that we can do better work for less money.

Brian

Chrome355z

iTrader: (1)

Hell i'll pull out the Grinder and do it for $250.


*** Disclaimer ***

If your engine loses power, spits, coughs, detonates, explodes, or just plain *** doesn't run I accept no liability.

**************

02sleeperz28

iTrader: (26)

LMAO

Unertl42

iTrader: (63)

funny, I'm bored and was thinking that I might as well do it right the first time

DGageSS

iTrader: (9)

port them!!

PREDATOR-Z

Livernois Stage 3's LS6
intake....exhaust
.100 65 ....... 55
.200 149 ...... 109
.300 212 ...... 155
.400 261 ...... 185
.500 293 ...... 204
.600 303 ...... 215


Very strong flow numbers and with their small runner (smaller than average competitors) they have velocity too

on2

iTrader: (4)

Where'd you get those numbers? ^^

I have to 2nd the Livernois suggestion. I don't know why they aren't more popular on here. They perform consistent with their advertised numbers.

Also, their Stage 3's are comparable to others' Stage 2's. Most people assume they are huge hogged out ports because they are labeled Stage 3, but as PREDATOR-Z stated they have smaller high velocity ports.

I have a set waiting to go on.

PREDATOR-Z

^
You gave them to me, I thought they will be usefull. Since I had suggested those heads, I figured OP would like to see them
Livernois are one of the few shops whose heads will flow as advertised if independently tested. I've had a couple of sets pass through my hands (made me wish I had gone with them before, next time for sure if stock castings are needed)

{off subject} I'll send you some cam's specs tonight, all my datas (lobe charts) are at home. I'll give you a few options.

LivernoisMotorsports

iTrader: (1)

Thanks for the recommendations guys!

We typically always have these heads on the shelf, ready to ship. If you have any questions, feel free to call me at 313-561-5500 ex. 2123 or pm me on here.

Regards,

Rick LeBlanc
Livernois Motorsports

PREDATOR-Z

Don't get me wrong *****, TSP has good heads but in 243s I just prefer Livernois. TSP is very strong in 5.3L castings (I run a set on my 370, slightly massaged, I opened them to 4.0 bore and installed aftermarket seats for the 2.04 valves instead of stock 2.02 [older version]).
It is just that Livernois managed a CNC program that keeps intake runners smaller than TSP (in 243s) which translates in better velocity. That is where I prefer them for street applications.
TSP has come a long way in the past 4 years and always work hard at making things better.
All in all all let us not forget TEA as well, it really depends on the application and cam used.

98blueSScamaro

iTrader: (14)

Pred I am looking into heads for next year. for my car. Mods are ls6 stock long block with the vindicator and all other mods in sig but i am having a hard time picking a good head for my setup i am looking to go with the tea stage 2 or 3 or the livernois stage 3 what are the pro's and con's i take the car to the track alot and drive on the street time to time. And a friend of mine chrs1313. he told me how you helped spec a cam for his car and see what you have to say about my setup. BTW his car fly's wish i would have done my homework. thanx Rob