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SBC HEADS...VORTEC VS. TRICK FLOW..

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Brians 60s, Sep 24, 2001.

  1. Brians 60s

    Brians 60s 1/2 ton status

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    who here is running vortec heads? who here is running trick flow's. What are your opinions on each?

    IT'S A 1 TON THING.... IF I HAVE TO EXPLAIN IT, YOU WOULDN'T UNDERSTAND!!!
     
  2. Pure Insanity

    Pure Insanity 1/2 ton status

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    I have Votecs. I have been told by a late model roundy round guy that they have out flowed 202 feulie heads on the flow bench. They may have smaller Valves but the port design is FAR superior.

    I have never used the Trick Flow heads, but for 500 bucks a set, ready to run, for the Vortecs, they are hard to beat and they re real torque friendly. The down side is that they take a Vortec spec. intake manifold.

    I get all the exercise I need pushing my luck! [​IMG]
     
  3. blazer72

    blazer72 1/2 ton status

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    Had a set of the trick Flows and they were are trash! Were never flat the guides were for ever bad. All in all not worth the money they cost for Summits House Brand.
     
  4. solowookie

    solowookie 1/2 ton status

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    man all you gotta do is look at the $$$ involved... with shipping $529 for a set of vortecs.

    <font color=blue> Jeff - may the force be with you</font color=blue>
    <a target="_blank" href=http://coloradok5.com/gallery/Jeffs-Stuff>link to k5's</a>
     
  5. '73 K5

    '73 K5 1/2 ton status

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    I love my Vortec's. Massive, noticeable power increase over the 882 casting heads that I did have.

    '73 K5
    Chevy good...Ford bad
     
  6. xnoahx

    xnoahx 1/2 ton status

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    Ive got the vortecs, I love them, work much better than my old heads and i dont have that annoying oil buring problem. I got mine on ebay for $450 new with chrome valve covers. The only thing about the vortecs is you will have to get new self aligning rockers, center bolt valve covers, and a new intake manifold, All this adds about $250 to the price. But if you dont already have a performance intake you might as well get one. Besides, aluminum heads arent that neccesary unless you have aftermarket pistons with more compression. Vortecs with stock dished pistons shouldnt raise the compression past safe levels for cast iron.

    My 73 K5 <a target="_blank" href=http://www.geocities.com/xk5blazerx/73k5.htm>http://www.geocities.com/xk5blazerx/73k5.htm</a> 350/TH350/NP203, Q-jet, Edelbrock intake, Vortec heads, 4" lift, and 36" TSL's
     
  7. Pure Insanity

    Pure Insanity 1/2 ton status

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    Ive always seen them advertised w/ the rockers. Somewhere I have seen a kit to do the whole swap, Heads, covers, Intake, and gaskets. I think it was a GM perf. ad.

    I get all the exercise I need pushing my luck! [​IMG]
     
  8. CaptCrunch

    CaptCrunch 1/2 ton status

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    I would go the Vortecs personally for the price, otherwise look into the Brodix, AFR, or Edelbrock heads if you gat the $$$ to spend for more power.

    I ran Trick Flow Street Heats in my old Mustang for a long while... excellent head but I bought it bare and did all the work on it. Trick Flows (in particularly from Summit) have had a history of dropping valves. TFS heads seem to be much more of a Ford Camp item.

    I personally would go AFR's for the best money can buy in a small block head. Vortechs offer a bang for the buck or the new Edlebrock Vortech heads are absolutely awsome looking. They are aluminium and are available in the stock 170 cc ports or a larger 200cc port (would be awsome on a 383 or 406 small block [​IMG])

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
    <a target="_blank" href=http://coloradok5.com/gallery/captcrunch>http://coloradok5.com/gallery/captcrunch</a>
     
  9. 84_Chevy_K10

    84_Chevy_K10 Banned

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    1. Yes the Vortecs will outflow the camel humps, even in stock form with 1.94/1.50 valves

    2. Yes, the Vortecs are cheap at $500 or so a set. But once you pay nearly $200 for the intake, then get a set of self aligning rockers, plus a set of valvesprings that can handle the lift of the cam you're going to use, and screw in studs, other aftermarket heads are looking to cost about the same or less (World Products, Darts, etc.)

    3. The Trickflow heads will put the Vortecs to shame.

    4. Aluminum heads have many advantages, but they're still aluminum. That means don't get them hot!!! Other than that, they can take more compression on pump gas, which means more power.

    5. There are a number of ways to change your compression ratio, and pistons are only one of them. Simply changing to the 62-64 cc combustion chamber of the Vortecs is going to really increase your compression if your motor has 76 cc combustion chamber heads on it.

    I think both heads are a good choice, depending on your motor budget. No matter what you choose, I think it's important to become informed of all your options and plan way ahead (as in, don't try building a motor if you only have a week and you need your truck back, get it done ahead of time). After you choose how much power you're looking for, you've got to select your parts accordingly.

    And, at the risk of sounding like a, "Hot Rod magazine article" make sure all your parts match so that they can work together. My example of that is the motor in my truck. It's a 305, but I have selected the parts that really let it work well. If I had wanted to spend a little more money, I could have put a set of aftermarket heads on it and made close to 300 HP. But, even though it's a 305, the parts work together very well. I have a small carb, small intake, the best stock heads I could find, a small torquey cam, small tube headers, and small dual exhaust. I built my 305 all for torque, and it works very well. DD 2000 says that I have 330 lb-ft of torque at 3000 and 247 HP @ 4500. I'd say that's fairly respectable for the SBC that everyone hates so much.

    So, my best advice is make a wise decision. I've seen many people get cought up in the "bigger is better" syndrome with carbs, intakes, cams, exhaust pipe etc. While that might work in a lightweight car, it'd really suck in a truck. One of my friends just built a motor with a huge cam for his '87 K20. What he's going to have is a gutless from the stop sign, rumpty rump idling motor. The camshaft is absoultely enormous. He used his friend's motor--a 383 stroker, as an example on which to choose for his 350. He hasn't installed it yet, but I'd be almost willing to bet he's going to be disappointed, even though DD 2000 says he'll have 340 HP if I remember correctly.

    EDIT:
    Seems that Mikey got his post in about the same time as me. I'd like to 2nd him in saying that AFRs seem to be a great head. Their flow numbers are very promising, and others have had great results with them. I don't have a set, but from everything I've read and talking to people, they seem to be a very good set of SBC heads. If I was building a motor right now, I would definitley look into buying a set (a 10:1 406 comes to mind, topped with a set of those bad boys could make some serious power!!).

    Tim
    '84 Chevy K10, lifted, loud, fast, and 3/4 ton axles<P ID="edit"><FONT class="small">Edited by 84_Chevy_K10 on 09/24/01 10:23 PM.</FONT></P>
     
  10. Burt4x4

    Burt4x4 3/4 ton status

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    Hey great stuff fellas!!!
    I have a bare 350 block sittling in my garage. This will some day be a 383. I have no other parts for this build up yet.
    Should a set of heads be my very next part to get?
    I want LOW end TORQUE! As much as I can get while keeping the build up reliable for continuous duty type of running. I am non-EGR too w/ devorce style choke on the intake( Edlel. Performer intake) and would like to use all the accessories off my current 350. Are any of the heads (besides Vortec) listed above a good choice for me?
    If so anyone have a part# so I can look into the $$. I'm gonna start matching parts and then start buying them and by this time next year I should have a Torque Monster!!!!
    Thanks

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
    <a target="_blank" href=http://www.geocities.com/baja/5099>www.geocities.com/baja/5099</a>
     
  11. Burt4x4

    Burt4x4 3/4 ton status

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    B.T.T.

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
    <a target="_blank" href=http://www.geocities.com/baja/5099>www.geocities.com/baja/5099</a>
     
  12. dyeager535

    dyeager535 1 ton status Premium Member

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    Vortec heads are going to force you to go to manual, electric, or no choke. (and you can't necesarily bolt an electric choke onto a manifold choke q-jet, if thats what you are running) I haven't seen a Vortec intake yet that has provisions for the manifold mounted choke, and I know with absolute certainty the Vortec Performer does not. Makes sense since there is no crossover. Not a big deal, but something else to consider when you mentioned everything bolting up.

    As well, since the heads have no crossover, you aren't running EGR that way. Believe the newer Vortec trucks ran EGR off the exhaust manifold.

    Dorian
    My tech/links page: <a target="_blank" href=http://www.dorianyeager.com/index2.html>http://www.dorianyeager.com/index2.html</a>
    No anti-theft measures on your truck? No pity when its stolen
     
  13. Burt4x4

    Burt4x4 3/4 ton status

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    Yes I have the Edel. Q-jet 1901 that has that little stove &amp; spring choke assyembly that bolts to the intake manafold.

    In an effort to make a torque monster on a budjet I want to put all the money into building a long block 383 and use my intake and EVERYTHING else that's on my current 350.
    The block I have is the exsact casting # of the 350 I currently have in my K5....

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
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  14. Triaged

    Triaged 1/2 ton status

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    I can't see doing all that work and not ditching that HEAVY POS stock intake. Have you ever picked up one of those things? You have to change the intake if you go to the Vortecs and if you go with AFR heads a intake would be cheeper because of the more common bolt patern.

    '71 Blazer CST w/ a 400sbc, 4" lift, 36" Supper Swampers, and alot of rust
    <a target="_blank" href=http://community.webshots.com/user/triaged>See it Here </a>
     
  15. CaptCrunch

    CaptCrunch 1/2 ton status

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    Burt... I'd really look into those 200cc Edelbrock Vortech style heads (e-tec's I believe they are called) The design of them is just like the vortechs and GM PP's fastburn heads which are really geared to keeping the flow velocity up at lower rpms despite the larger ports (or in laman's terms it gives you the best of both worlds torque down low and hp up high). They are said to flow about 30% more then them as well. Although I think your 383 will make plenty of torque without a problem so even a cheaper 190-200cc head like the Sportsman II's will do well with the right cam choice. I built up a 383w/ a pretty large Isky cam and designed for higher rpm power w/ a set of Brodix track one heads and it will light up the tires in my buddy's camaro by barely hitting the gas (and he has 3,23 gears [​IMG], not bad for a high rpm motor [​IMG])

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
    <a target="_blank" href=http://coloradok5.com/gallery/captcrunch>http://coloradok5.com/gallery/captcrunch</a>
     
  16. Triaged

    Triaged 1/2 ton status

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    I have been playing around with some dyno software and if I was to build a 383 (not going to happen seeing as I have a 400 already) it would be a 9.5:1 CR, 383 w/ a Isky #201256 Cam., Vortec heads and a mild dual plane intake. That combo spit out these #'s
    400 lb*ft of torque @3500 rpm and 325 hp @ 4500 rpm.
    @ 2000 rpm it would already be putting out 350 lb*ft of torque!

    '71 Blazer CST w/ a 400sbc, 4" lift, 36" Supper Swampers, and alot of rust
    <a target="_blank" href=http://community.webshots.com/user/triaged>See it Here </a>
     
  17. Donovan

    Donovan 1/2 ton status

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    Look here for head flow figures. I would diffinently go with the vortec heads because they have much better low lift numbers. Remember you don't need a heads that flow great at .550 lift because your cam will never get there. Look into the .400" area and compare the heads there. http://www.chevyhiperformance.com/editorial/article_popup.jsp?id=41599&amp;sidebar=1 and this one <a target="_blank" href=http://www.chevyhiperformance.com/editorial/article_popup.jsp?id=41599&amp;sidebar=1>http://www.chevyhiperformance.com/editorial/article_popup.jsp?id=41599&amp;sidebar=1</a>



    Donovan
    Nitro Fumes makes me Horrrrny
     
  18. Donovan

    Donovan 1/2 ton status

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    This is where I got the info from above look to the right side of the website and there is head flow figure.<a target="_blank" href=http://www.chevyhiperformance.com/>http://www.chevyhiperformance.com/</a>

    Donovan
    Nitro Fumes makes me Horrrrny
     
  19. Burt4x4

    Burt4x4 3/4 ton status

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    Yes I have felt the weight of a stock intake, HEAVY!! I am running an alum. Edelbrock Performer intake now.

    Dyno software?,hmmmm haden't thought of using that!
    Are all the Vortec heads centerbolt style on the valve cover?
    Winter is comming and I am gonna start this build up so keep the good ideas flowing.......
    thanks

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
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  20. Burt4x4

    Burt4x4 3/4 ton status

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    Nice comparason!! Thanks! Now I need to pull my valve covers and see wich head I have on my 350. I know they have 194/150 but duno wich # they are...

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
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