What intake manifold will fit vortec heads and fit a TBI unit (or if not where is an adapter that will work) and a cam that would be the correct match, dont have to be super agressive, but anything is better then the stock 305 cam. also, i have a budget of $1000. thanks for your help! :hail:

 

GMPP makes an intake manifold for TBI and vortec heads. They are kinda pricey.

 

See sig.

 

I think i have a large setup for basicly a total engine package. IF you would like to help me maybe save me some cash by not buying a wrong part or missing one, review and tell me if i need or missed anything.

CCA-12-305-2: Camshaft, 246PE, Pure Energy, Hyd Flat Tappet, 246/263-203/212-.429/.438-110

CCA-1417-16: Chevrolet: 1987-up 305, 350 self aligning rockers, 3/8 in. stud, 1.52 ratio, chromemoly, roller

EDL-2101: Chevrolet: 262-400, dual plane, cast aluminum, Performer, intake manifold

EDL-6871: Chevrolet/Pontiac: 1982-87 5.0L Camaro/Firebird, with 2 1/4 inlet slip-on catalytic converter, 16 g...

HLY-17-45: Square-bore carb flange to Holley two-barrel Pro-Jection TBI flange, adapter

NAL-12558060: Chevrolet: 1958-2000 283-400, 64cc combustion chambers, 170cc intake runners, 1.94 in./1.50 in. diam...

SUM-239432: 14 in. diameter, chrome, 1 1/4 in. offset base, 3 in. element, air cleaner assembly...

SUM-G3309: Chevrolet: 1987-1997 305-350, centerbolt, chrome, valve covers...

SUM-HT817: Chevrolet: 262-454, flat tappet, individual hydraulic lifter

TRG-700: GM: 1982-92 V6, V8 ; Pontiac: 1982-92 V6, V8 Passenger car, TH-700R4 transmission (transgo shift kit)

Thank you! :hail:

 

You cant use that intake manifold with those heads. You need a vortec style intake manifold.
Also, i think a hydraulic roller cam would be better than a flat tappet cam ( such as the LT1, LT4, etc.) you can reuse your lifters.

 

You mentioned in your first post that you have a budget of $1000. The parts you list have to add up to at least $1500 (I'm thinking those are Summit part #s?).
I'd say, if you need to stick to your budget, begin to look in other places besides Summit. GMPartsDirect.com, GM Performance Parts and EBay.
Have you thought about tuning equipment?

S-D

 

I wouldn't use those headers. If you really want Edelbrocks, for $6 more you can have EDL-6872 or you can get Hooker 2055s for another $40. Both have 3" Y-pipes. I don't know if you have a 3" catback now, but you would have that option later. And get a 3" high-flow cat, if you intend to use one.
I know it isn't a money saver, but with the combination you have planned, I believe you would see the benefits of the larger pipe. HTH...

 

Ok. yea i had a pair of intake manifolds on my wishlist with vortech style in teh description, or maybe i was day dreaming? i dunno anyways, i looked all over and i cant really find a price and as for teh cam im gonna go with a LT1 cam. also, my budget got bumped to $1500 because i was able to free up soem cash. Any recomendations of a workable intake manifold? (also i changed teh header listing to the 3" version, thanks for tellin me) thank you!

 

Also, what is teh maximum lift the vortech heads take?

 

Some people on here say 480

Heres some sites that say what the max lift is.
.420-.430
.450
.470

 

It is likely that with a heads/header/intake/cam change, you'll need tuning. Is that in the budget?

Also, do you have to deal with emissions?

What are you looking to get out of the car?

For $1500, I'd go with vortec heads/GMPP intake/ cam of your choice and some headers. Don't forget the tuning equipment. I don't think you could squeeze SLP headers in there and keep it under $1500. Maybe Edelbrocks?

S-D

 

I bought the heads and cam used which saved money (heads were $405 off ebay with some machine work done, cam was $30). The performer RPM at the time was $210 from a local speed shop. I just got a 454 tbi off ebay for $175 but I gotta takcle that yet. Gaskets will be $100-110 for everything. You minus well put a new timing set on. The adaptor can be bought from PAW for $12. Then you'll need all kinds of odds and ends like hoses and clamps, so add $50-70 more. The hooker headers are ok, I dont know many people that say they really like the Edelbrocks. They were $350 from summit. Catback, I'd go with Hooker on that again if I had to do it again which is $350, too. High flow cat was $50 (catco universal 3" in/out no flange). You'll need a fuel pump, the Walbro can be had for $109, do a search for that site I dont remember it off the top of my head. Then you'll need to tackle traction which I now have $~900 tied up in it. Tuning is between $150 and $300 depending on what you get. Its impossible to build an engine without building around it, too.

 

I thought I remember seeing that CHP had retracted and re-spec'd lift @ .470 also. I looked for that "Vortec Chronicles" article but was unable to find it on their site. I believe that is where they retracted their original stand on the 906 and 062 heads (due to exhaust ports) and max lift.

Instead of waiting to hear valve meet piston, I shucked out the extra coin for the 981-16 comp cam springs.

S-D

 

Amen to that. I'm in $3200+ and I started with a complete cop 350 that only had ~5000 miles on it that I bought for $500.

Let the good times roll........

S-D

 

No emmissions, im looking for alot higher lever of performance and trying to ifx all that GM made wrong with the LO3. the tuning is covered by a different budget, can i get some part # for your recomended intake head and cam? thanks

 

12496821 Manifold $321 GM
12497760 Gaskets $46 GM
1103952 Distributor $175 GM
134-2002 Vortec Intake bolts $26 ARP

Cam is a comp cam, lift 0.480/0.488. 112* LSA. Check comps hyd. roller computer friendly section for TBI. Or, better yet, call Comp and tell them your setup- they are the experts and can recommend a good one for you. The one I have provides good gas mileage, manners and performance. That is a very personal choice, to be choosen by the owner/driver.
I include the distributor # since my original dsitributor would not fit the vortec-tbi intake.

S-D

Price the GM part #s at gmpartsdirect.com

 

Sounds good, il call comp cams and get there imput, as for all the vortec stuff i can get from gmpartsdirect, and the headers i can get from summit. Thanks alot everyone for helping me out, this is my first car and i saved all this cash up but didnt know where to start.

Also swerve-driver, when you did all your vortec stuff cam and everything how much better was it afterwards, could you feel alot for torque? im not so worried about HP more on teh torque. later

 

Torque is good. The vortecs have gobs of the stuff down low, where most street cars need/use it. As well-beaten on the boards, the vortecs fall off some at the higher rpms. You've just got to identify where you will use the power most, at lower or higher rpms.

I can't really isolate and define the gains made by the engine, since I changed engine, wheels/tires, brakes, suspension, clutch, Powertrax unit and stiffened frame connectors, panhard and torque arm all at the same time.

Also it bears mention that I went from a 305 to 350- that is why I'm not sure my cam would work for you.

At any rate, the difference was noticable. I went from bone stock 91 RS (+100K miles) ETs to 13.8's with those changes (+ tuning). I don't do anything special at the track. I literally drove there, got in line, got my paperwork and raced six times with a best at 13.81. No tire pressure changes, air cleaner removal or stuff like that.

Have fun with your project and don;t forget the tuning!

S-D

Attached photo is from last spring.

 

Aww crap. I hate it when this happens. You quote what you thought was a good source and then run across it later and find out it is garbage.
I have to admit, RB is right when he says you can't believe everything you read. I hate it when that happens.

The "Vortec Chronicles" article (CHP, January, 2003, ppg 40-46), is the one where CHP provides some bad info, namely page 42, sidebar #3, "The stock springs will only accomodate around 0.420 inch of valve lift.". Also on pg. 42, sidebar #4, "Look for casting 12558062, but avoid casting number 10239906, which has a modified exhaust seat and loses 20% of its flow at 0.120-inch lift.".

Now I know why I couldn't locate this CHP ariticle in their tech section on the internet. It is probably in their recycle bin where it should be.

I do believe that they righted this misinformation in later issue. Specifically upping recommended lift and negating differences between the 062 and 906 castings. I will come across it sooner or later and will note it when I find it.

Oh well, the search continues-
S-D

 

http://www.compcams.com/information/...HP0201-002.asp

 

Gracias, Token. I couldn't read the date on the article you referenced (Feb. 2001??). I also noticed that article is called the Vortec Head Chronicles I'm pretty sure the one I referred to is called "Vortec Chronicles". I am interested to know if they wrote this article before or after the one I referenced.
I knew I saw the 0.470 valve lift value referenced somewhere. I recall reading the article you referenced. I'm still searching for where they retracted their "062 is the better head" claim. Maybe a simple "Dept. of Corrections" deal in the first few pages of the magazine.
Anywho, thanks
S-D

 

best article, ever. I bookmarked it and saved it to my HD as well.

 

thats good to know.

 

I found another CHP correction, I just cant post it.

CHP put out a book of all their online articles and in the print version I have of their online "bolting on vortec heads" article that I posted earler has the figure at .475
..but the Vortec valvesprings are nothing more than weak sister stockers that are dangerously close to coil bind with valve lifts of more than .475 inch





Oh well, the search continues-
S-D