Should I go with this cam??

Discussion in 'Street/strip 400/430/455' started by 1969riv, Dec 24, 2004.

  1. 1969riv

    1969riv Well-Known Member

    Hello I have a question for you all, I have recently been contemplating going to a nice cam for my 69 riv. I may be able to get a Lunati Hemi Killer cam for a good price. Now my engine is a rebuilt 430 bottom end with approxamately 45k miles on it. I put 72 455 heads (non stage) on that I did alot of bowl blending and cleaning up on I also had them shaved a little to raise the compression ratio. I also have a holley 850DP and shorty headers along with 3"exhaust. along with an offy 360* single carb intake.

    What I want to know is would this be a good cam for my car and would my stock valvetrain hold up to it? I would also change the converter out at the same time maybe even have a shift kit installed. I dont commute with the car it is mainly my weekend car. I do want to take it to infineon once in a while.

    the only reason I brought this cam to mind is because I might be able to get it for cheap. SOON!

    all I want is some input, thanks, will

    I also have the 3.42 possi rear end its a G.S.
     
  2. 1969riv

    1969riv Well-Known Member

    the specs

    I forgot to mention the specs they are

    Specifications: Lift: .490 intake & exhaust with 1.55 Ratio rocker
    Duration at .050: 241 degrees intake & exhaust
    Advertised duration: 326 intake & 348 exhaust
    Lobe Separation: 112 degrees - 4 degrees advanced
    Ex. closes at 4.5 degrees & opens at 56.5 degrees
    In. opens at 12.5 degrees & closes at 48.5 degrees

    thanks, will
     
  3. jmccart

    jmccart John McCarthy

    Absolutely not. You need to send that cam to me straight away, I am in CA as well. I am glad I could help. Ha-ha. Sounds nice, might need a converter, big duration ( I am no cam master, but just comparing to the durations of other cams and the suggested power bands).
     
  4. KELLY SONNABEND

    KELLY SONNABEND Well-Known Member

    you will need to upgrade your springs, that cam is a big cam and you would want lower gears with your car, and you will need around a 2500 stall, some people have vacumm problems with that big of a cam. i think a cam with around 230/240 duation would be a better choice for your set up. you will still need at least stage 1 springs.
     
  5. David Hemker

    David Hemker Well-Known Member

    That's a lot of cam for a heavy car. It will sound wicked but will not run to the potential of the cam without a good converter. As you go bigger with the cam there are trade offs. You will loose low rpm torque and drivability but will gain high rpm hp. As you go bigger with the cam you need more compression to compensate for the longer overlap built into the bigger cam. Cars with full exhaust respond better with a dual pattern cam. If it was me I would use a cam with .050 duration numbers in the 220 to 230 range on the intake side and 230 to 240 range on the exhaust side, such as a 224-234 duration, 226-238 etc.
     
  6. APVGS

    APVGS Ottawa Go Fast Guy!!

    Check out TA`s site.I use the TA290-94H in my GS with a 2000-2200 stall converter.This would probably work in your Riv.Nothing sucks more than a "Dogger" off the line from ill matched parts :Dou: Later,Tony.
     
  7. Ken Peace

    Ken Peace SLOW PAY 455

    You can run pump premium gas with that cam with 9.9:1 compression or less using full 35* spark timing with no ping. I think it's a good choice with a 2000 rpm or higher stall torque converter and a rear gear suited to put you over 2000 at the intended cruise speed. I would also use solid lifters (with adjustable valvetrain of course) on it if you intend to rev it to 6000. I had a 241/504/110 Hemi-Killer and really liked it with a free flowing exhaust. It ran strong to 5700 or so. Good cam by me.
     
  8. jmccart

    jmccart John McCarthy

    I have a TA-212 in a running motor, works great,I am looking to go to something a little more radical. E-mail me if you are interested.
    Thanx.
     
  9. 1969riv

    1969riv Well-Known Member

    I wanted something radical enough so it sounded like it has a huge cam But i dont want performance to suffer. I do intend on changing the converter. I want the cam that will best improve my quarter mile time and give it that crazy idle.

    So what I want to know is will this cam hurt me or help me even with the higher stall converter>

    thanks, will
     
  10. RG67BEAST

    RG67BEAST Platinum Level Contributor

    A looser convertor will help because it will let you're engine rev to it's powerband before it locks up. You want max. low & midrange torque. I think a dualplane intake would be a step in the right direction due to the car's weight factor, as it would help to get that mass moving quicker off the line. That's my opinion. Best of Luck!! :3gears:
     
  11. KELLY SONNABEND

    KELLY SONNABEND Well-Known Member

    then you will need to run 4.11 gears, and at least a 3500 stall so your not slow out of the hole, also you will need to build your bottom end to handle 6000+ rpm ( ARP bolts ,peened rods, and a good working oil pump) . Running a big cam does sound cool!! but if the rest of the car is not set up for it, it is a DOG off the line, and if you cant rev your moter high enough you will never feel the difference in power over smaller cam that matches your setup. The only people you will impress are the ones that think a big cam makes you go faster,to big of a cam just hurts a cars proformance and makes it less injoyable to drive. Remember a smaller cam for your set will make more power up to around 5000+ rpm and then the bigger cam will make more power, if you have all the goddies to go with it, so you need to think about how long are you going to be in that rpm range.
     
  12. 1969riv

    1969riv Well-Known Member

    Well, that is what I wanted to know. I now need to find a cam that better suits my needs. What I want is get a very noticable idle and get me the best quarter mile time. I dont want to go much over a 2500 stall converter. I definately dont want to change rear ends. and when people here my car I want there to be no question in their minds whether or not I have a cam.

    So which one should I choose.

    Now I will not just go and buy on of these from T/A I will wait until a good deal comes along!!!!!

    thanks for all input, will
     
  13. KELLY SONNABEND

    KELLY SONNABEND Well-Known Member

    The 413 from TA would be a good choice it will give you a nice lope at idle, i run the similar 113A from Postons, and people know its not stock, but even these cams can rev past 6000 rpm but alot of people shift at 5500 or below. a 2500 stall should be fine.
     
  14. glaw@jjsnack

    glaw@jjsnack Platinum Level Contributor

    do you have vacuum with the 413 cam? or do you have to use a vacuum pump?
     
  15. KELLY SONNABEND

    KELLY SONNABEND Well-Known Member

    the 413 has 234 intake durations and unless you go over 238 intake duration i dont think there is a vacumm issues, unless your moter is wore out.
     
  16. APVGS

    APVGS Ottawa Go Fast Guy!!

    Hey Will.As Kelly and myself (and others)have stated it`s a matter of parts matching.You can`t use a 2500+ rpm cam and a mid-hi 2 series gear for example,you probably wont like the off line performance IMHO.Call TA and give them your car specs(pistons,carb,exhaust,diff gear etc..) they can guide you to a cam/converter choice that should work.Later,Tony.
     

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