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Thread: 302 ideas
          
   
   

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  1. #1
    josh bichard is offline CHR Member Visit my Photo Gallery
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    302 ideas

     



    Ok, I have a few different options for my 302. I am sure now that I want to run some better heads. I could go with the heads kurts buddy has or buy a different set. I was looking at the world products windsor jr. 180s. They have 58cc combustion chambers, 180cc intake and 1.94/1.60 valves. And they are pretty budget friendly at 409.99 each.
    I just need to know if they will be ok for a daily driver. I am concerned with the compression ratio (pump gas). Should I run dished or flat top pistons? and what cam would work well with either choice? I would like to run my stock converter, but would consider a cheap stal. Here is an idea I have.

    flat top hyperutectics and stock bottom end
    windsor jr. 180s
    magnum comp cam adv. dur 280 .512lift rpm range 2000-6000
    1.6 ratio roller rockers
    performer rpm intake
    holley street avenger 670 vac sec
    long tube 1 5/8 long tubes
    2 1/4 dual exhuast

    Please, make some suggestions. I would rather this get picked to death than build it and have an explosion you gotta love how this list gets more expensive every time I type it

  2. #2
    JeffB2's Avatar
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    My suggestion

     



    I think this would be a better combination for several reasons,SBF's by design will run stronger with more exhaust duration than intake and since you will be using this as a daily strong low end and mid-range is important.This cam is a little less pricewise than the Comp so the difference in the heads will equal out.This cam will let you run the 351W and HO firing order also which is a side benefit.Click on : www.summitracing.com and put these part numbers in search: M-6049-X306 (heads) and HRS-220051(cam) The rest of your combo would work very well with this.
    Last edited by JeffB2; 12-09-2009 at 10:34 PM.

  3. #3
    vara4's Avatar
    vara4 is offline CHR Member Visit my Photo Gallery
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    What ever you do Run a windage tray in the bottom end.
    It keeps the Oil from slapping the crank and slowing it down under hard acceleration.
    Kurt

  4. #4
    josh bichard is offline CHR Member Visit my Photo Gallery
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    Thank you both for your input. Thats weird, the 351 has a different firing order? And do you think I could possibly get away with a 625 road demon jr?

  5. #5
    Dave Severson is offline CHR Member/Contributor Visit my Photo Gallery
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    I've installed that carb on a very mild cammed 302 with headers, works great!!! Customer was very pleased with it.... I usually run just the plain old Holley 600, but the 625 Demon IMO would be a good choice for your engine, too.
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  6. #6
    hotrodstude is offline CHR Member Visit my Photo Gallery
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    you would be better off with a 600 edelbrock carb.you would get better gas milage and better low and mid range trottle responce. i have a summitt carb (copy of a ford 4100) on my 289 r-1 studebaker v-8(its a studebaker not a ford,) i like it a lot good gas milage and great throttle responce. and autolite 4100 is also a good carb.

  7. #7
    vara4's Avatar
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    Here are your firing orders for the small blocks if you need them.

    http://loco4fomoco.com/technical.html

  8. #8
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    I used to run a 302 with the edelbrock rpm performer ally heads which i port matched to the same intake coupled with a edelbrock 600 carb and rpm performer cam it was an excellent package which gave outstanding mpg.
    I've not had good experiences with Barry Grant carbs to be honest, I had one that had swarf in it and other similair experiences.
    Its aweful lonesome in the saddle since my horse died.

  9. #9
    ted dehaan's Avatar
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    I just have to know what swarf is thats a new on me.....ted
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  10. #10
    roadster32's Avatar
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    When you machine a piece of metal what comes off is swarf what do you guys call it ???


    Quote Originally Posted by ted dehaan View Post
    I just have to know what swarf is thats a new on me.....ted
    Its aweful lonesome in the saddle since my horse died.

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    Quote Originally Posted by roadster32 View Post
    When you machine a piece of metal what comes off is swarf what do you guys call it ???
    I must admit, as a degreed ME of 33+ years I had never seen the term "swarf" but it readily comes up in Wikipedia and on-line definitions. I have swarf all over the barn floor and workbench from grinding a pair of calipers!!
    Roger
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  12. #12
    roadster32's Avatar
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    We in the U.K. refer to that as grinding dust Swarf is usually stuff that comes from machines such as drilling, milling & turning. It looks like long cork screw springs.


    Quote Originally Posted by rspears View Post
    I must admit, as a degreed ME of 33+ years I had never seen the term "swarf" but it readily comes up in Wikipedia and on-line definitions. I have swarf all over the barn floor and workbench from grinding a pair of calipers!!
    Its aweful lonesome in the saddle since my horse died.

  13. #13
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    Quote Originally Posted by roadster32 View Post
    We in the U.K. refer to that as grinding dust Swarf is usually stuff that comes from machines such as drilling, milling & turning. It looks like long cork screw springs.
    We call it chips..

  14. #14
    josh bichard is offline CHR Member Visit my Photo Gallery
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    And one more thing, If I were to run the comp cam with 268 adv duration, should I run dished pistons? what compression ration would a zero decked 302 get with flat tops and 58cc chambers? And could I run these heads out of the box, or get them worked a little? Ive read that they need a couple things cleaned up. Thanks

  15. #15
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    I would run flat tops but the deciding factore is what block you have there.
    I would stay at 10:1 compression, thats plenty for the Street.
    Look over the starter for the numbers, then tell us what they are.
    I personally don't like the dished, but thats just me. Kurt

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