Shortened a bit...

I'd almost rather have a LEGAL conventional SR than the Vortec, if for no other reasons than that the regular SR is already here, and that it can be placed on a stock L98 while those of us with 5-figure incomes save up for built engines.

It seems to be an efficient intake so with an EGR workaround it'd probably pass the sniffer, leaving the visual crapola. Hell, GM eliminated EGR on the last 4thgen F bodies via tuning...maybe that would help build an argument here. Then again, it isn't about sense in CA, it's about the government cashing in...sorry, off on a tangent there.

K

I would take fastburns anyday over many heads. The fastburns are the best flowing 23 degree head GM has ever made.

Keep telling yourself that.

-- Joe

Hmm... to all you vortec haterz out there, why? Just because your state needs EGR
Vortec heads have a lot going for them that the standard chevy port just can't match. It's basically an Lt4 head with standard small block exhaust ports. Do a bunch of porting on the exhaust and you'll have one screaming motor. The intake angle is much better than the Lt1 and even aftermarket gen 1 heads. This is why they flow so well with small valves.
You can still adapt EGR to vortec heads, just requires some fancy plumbing work.
With the vortec intake shape and the stealthram the engine will be one killer setup. Bang for the buck it'll blow any aftermarket head out of the water up until 400hp or so. The combustion chamber design is great, it already comes with back-cut valves, new bee-hive springs will install with no machine work and lo-pro retainers will allow for 510 lift untouched. It's going to be awesome reading up some vortec stealthram builds because they'll finally be taking advantage of the vortec intake port.

The tall ports work great with avortec manifold with different injection and port angle. On a TPI or HSR made for vortec, the injectors are an an angle that doesnt even optimize a 1205 port to its fullest potential.

Wanna make some serious power? Get a set of 1206 matched alum heads with large valves and angle mill them.


-- Joe

Vortecs suck, not when you can buy a set from protopline for $463, and do a little port work, and have them flow better than afr 195's competition port (on exhaust at least). NEWAYS, I dont know if any of you guys saw my post on stealth ram.com but here is the combo I am planning.

355 Eagle H-beams
forged pistons (undecided yet)
Comp Cams NX276 or NX288
Pete Jackson Gear drive (personal preffernce)
~10.5 to 1
Pro-topline 906's with port job, similar to article below. and Beehive springs
New Ostrige programmer
Lots of Nirtrous,

What do you guys think?
If I am doing everything right I come up with 461hp on DD2000
http://www.carcraft.com/techarticles...rt/index1.html

That’s is straight from GM it’s not like I made it up or something. Whats the deal???

Fron here: http://www.gmgoodwrench.com/perfpart...373&section=ep

You guys need to can this mines bigger than yours crap. You use whatever you want, and you use what you want and call it a day stop acting like 5 year olds.

He's got a point..

:I agree with this. The back and forth arguing makes it difficult to learn something. This board should be a a place where new comers can learn things and those who have more knowledge can trade ideas with other mature members (mature in knowledge of the cars that is)

It is hard sometimes to learn about heads - cams - intake combinations when the posts are full of this kind of dialogue.

I still like these boards and read them often. I appreciate the good posts from indiviuals who have knowledge and share it decently.

Here is my advice. Don't listen to folks whos brothers sisters cousins friends date once did something and got xxx on the dyno.

Try not to believe everything you read in the mag.

And for the love of ***, don't listen to GM..

A lot of us have spent years trying different combinations on cars.

I have a personal issue with vortec heads. I do own a vortec based vehicle, and I've had it apart a bunch of times. I'm just not really into that head.

My fave heads are AFR. But I think the price tag is outright lame.

I went with Trickflows because they're cheaper, and I can modify them to flow similar to a CNC ported AFR.

A lot of guys on here think I'm too negative about TPI too. I spent about 6 years toying with TPI. I spent lots and lots of money on various parts, hundreds of hours in prom tuning, etc. So I think I've got that base covered.

I'm also not a fan of the HSR, though, if one wants a front mounted TB Its a hell of a lot better than TPI, and cheaper than a miniram, so go for it.

-- Joe

Joe,

What cam are you running with the trickflow heads? Also, what intake are you using? The stealth ram will not work with my hood being a trans am and I will not cut the hood. The miniram looks good but is very expensive and I have questions about TPIS anyway.

The super ram is also a good option - there are some used ones out there. I know that there are a lot of possibilites on this but I have not worked with any of these combinations so the input is very helpful.

Thanks.

My new setup is in my sig, which I'll attach to this post.

www.singleplane-efi.com for information on my home-made manifold, and others on this site who have done the same.

-- Joe

cant wait till next month

here is a post that shows the before and after cfm rating of ported Vortecs and Twisted Wedges. http://www.kendrick-auto.com/head_flow_figures.htm

Just to help back it up. I thought it was fairly interesting. You can pick up used trick flows from ebay (or me) for a good price if you watch out for them.

FWIW I had the trickflow twisted wedge on my 5.0 as did many other guys I knew. They made a huge difference, though I know that a 5.0 and L98 are apples and oranges.

I look forward to more good head info... keep up the info.

Here is where I am at. I run a good size organization as well as travel a fair amount and do a considerable amount of public speaking...... so the potential of me wrenching a lot on my car is not going to happen due to shear time and mental energy constraints. Not to mention having a family. Somebody on these boards must be in a similar situation? The amount of money I have in my car could have bought a much newer vehicle or something exotic - but I like my car - so this is my hobby.

The best thing for me would be a decent intake - head - cam combination that would get up to near 400 hp at the flywheel if possible without having to learn everything there is to know about EFI on a L98.

It does not have to be the very best - or the very newest thing - just a fairly reliable system that performs well and is not too tempremental and yet runs a lot better than TPI.

The concept of the stealth - vortec situation seems to be offering that from what I can read - but I might be wrong. Are there people who are thinking this way that can give ideas to fit this situation? Not trying to start a flame here but everyone should be able to be in on the third gen party at some level - even if it isn't the highest and greatest.

Thanks for reading.

Im wondering about the flow rates using the HVSR with a 383stk? My combo is looking like it might end up with HVSR w/ Edelbrock ECO200 heads.....any recomendations on a streetable cam?

Tom, hows the weather in Kirksville? My wife is from there. If you want a 400 hp engine the vortec stealthram will be your least expensive route (for a bolt on mpfi). I'm gonna stick it on a 350 with a ZZ4 cam to start tuning with, which I know will fall short of 400hp, then stick a comp XR269HR-12 cam in and achieve 400hp (assuming the stealth will allow as much power as a performer rpm). What do you do in Kirksville?

Thanks for the interest! I sent a P.M. out to you.

Whats the projected power output?

Personally I would be happy with 375 to 400....allot of people tell me to ditch the edels and go with fast burns....im getting the feeling that Ill have to port the Scoggin dickey vortec intake so as to port match the fast burns....

i think the same is said with the exhaust side of the edels heads since they are raised 0.200" (perhaps matching the exhaust headers)

this is new territory for me...any advise

Any date confirmed for it yet?

later
JEremy

I would go even bigger than that XR269-12 cam. The XR276-12 will make a little more power and still makes power to 5,800 rpms.



To all selling their SDPC vortec manifolds - PM me, I know of a couple of guys who are interested in buying the SDPC vortec base.

Some of us still like the old school TPI !

I love the TPI look....i still love the HSR...even though the base/plenum/runner has its limitations, I can still charge it to get a few more ponies out of the conventional TPI setup with SLP runner etc. I think the a charged vortec setup would do very well power wise

Any new news on this thing yet?!?

I just called Summit Racing. They said the intake is not avaible yet and to call once a month for status. Holley is not giving them any information on a delivery date.

D.F. when is thing going to be available for purchase and where? Who is getting it first?

There will be a few available through Feb, but the majority should be on the shelf the first couple of weeks of March.

http://www.holley.com/HiOctn/ProdLin...tealth_Ram.htm

7542 262-400 using 1996 & later
Vortec(L31)
iron heads FEATURES:

Idle to 6500 RPM
Two piece design features short individual runners & a large upper plenum
No EGR provisions
D shaped runners promote high flow rates w/o turbulence

What does the price tag look like?

Very interesting.. perhaps I'll have to buy one and convert my vortec pickup to accomodate this new stealthram. It should be great for slinging mud around and hill climbing

just called summit and holley and it is not yet available , the part number is actually codded under weiand, im gonna call holley again in the morning and find out when it will be on shelf

That's good news, I guess I can wait until early March. Thanks for the update D.F.

I hope the polished ones will also be avaible, thats the one I really want to get my hands on.

I think I can wait too. Ecspecially since that is when my B-day is lol which means............................Yes that is right some others chip in on the costs

I guess it gives me more time to get the heads.

me too jim

few things left to get
heads
cam
hsr

now which car to put it in lol both got carb lol

O.k. Doug, (D F)

Where is this thing? I called Summit again today and they have no idea what I am even talking about. What is the correct part number and who is carrying this intake. Apparently no one at this time. It's now 3 days from March and not a single retailer is aware of this product. And the part number 7542 pulls up to some old Team G intake part number.

Supposedly it's not even listed in the 2005 Holley or Weiand Books.

Just be upfront with us. If this thing is not coming out this year that's fine but can you give a realistic release date and vendor who will be carrying the product.

(Sorry for the attitude but I am frustrated at this point).

burnout88, if I hadn't read your post I'd have said the same thing.

Hey guys, I just saw in Super Chevy's april 2005 Issue, that they have the holley stealth ram set up for the TPI L98. They had part #'s in there and what they did to install it and how. I didnt see any prices for it though . I guess you have to call Holley with the part #'s and ask for prices?

Called Jeg's they have no idea what I am talking about either, and the 7542 part number listed on Holley site comes up to a Buick Team G manifold.

Vortec77 we are not talking about the L98 verison, we are talking about the Vortec head version.

D.F. sounds like the intake is a no go for March. As I stated earlier a realistic release date would be nice.

Thanks,

Yeah sorry I about that i realized what i wrote after the fact. I guess I jumped the gun . But i honestly havent seen them get into detail like that before with a third gen. f-body with stealth

I gave up, ordered AFR 180's....... at least I know I'll only have to wait two months for those.

Me too...I'm sellin all my vortec crap and buying Brodix heads and HSR. I have to get this intake on and Im not waiting any longer for this intake to come out.

Jason

This is the reason he was hesitant to give us a date in the first place. Way back when I posted my conversation with him, I tried to make it perfectly clear that his date wasn't cast in stone and it all depended on design issues, production problems, etc. He said January as a GUIDELINE. If you weren't prepared to deal with delays, you shouldn't have bought all the supporting equipment.

It'll get here when it gets here.

Jason, wanna sell your heads?

Called Jeg's again, got a different guy, who called Holley for me. He spoke with them and they told him 3/20/05. He is going to call them again on 3/20 and give me an update on the status. Advised that pricing is set as 280.99 for the non-polished and 555.99 for the polished.

If he calls me back on 3/20 I will post the results of the call.

Also, just got the following email from Holley;

From: <warrenwh@holley.com>
>To: <Brians133@hotmail.com>
>Subject: HLY-000000000011459
>Date: Tue, 1 Mar 2005 12:29:17 -0600
>
> The predicted due date is 03/17/05.
>
>Thanks
>WW
>
>Your question was:
>Please advise when the below intake will be available for purchase and from what dealer. Thanks,
>
>Vortec Stealth Ram Manifold
>7542 262-400 using 1996 & later
>Vortec(L31)
>iron heads

Hi guys!!

wondering if anyone knows for sure if they are in yet.

also, can we get a group purchase going?

I've got mine on order from thunder racing, haven't heard anything from them yet, nothing to do but wait

The guy from Jeg's never called me back.

In another post it said the ship date was pushed back to the end of April. Correction: The first week of May.

If we can get a decent price on a gp I'm in.

Edit: prefer a gp on the polished one.