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Engine Gurus - Need some thoughts and opinions

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  • Engine Gurus - Need some thoughts and opinions

    So I am thinking it is time to start doing some engine mods. Already have the suspension, rear end, and just recently switched out the T5 with a TKO-600 road race transmission. Specs on the motor are as follows:

    302, stock heads, and stock internals as far as I know. BBK cold air, stock MAF, Edelbrock RPM 2 with 70mm throttle body. Going from memory, when I had it tuned, the car did around 232hp/289tq on the dyno at HPP.

    Here are a couple options I am looking at doing with the motor:

    Option 1 - Heads Only
    AFR 165s with 1.550 215@1.950 Valve springs, ARP 7/16 rocker studs, Crower 1.6 and 1.7 roller rockers, and stud girdle bars, 30lbs injectors and 70-80mm MAF.

    Option 2 - Heads and Cam
    All the above, plus a cam. The cam I am looking at is the B303 (284° 284° 0.480" 0.480")

    Basically, looking for opinions on the setup. I want to stay with basic stuff right now so I am not having to worry about piston to valve clearance issues, but still squeeze some more HP out of the motor before the bottom end blows up and without dumping a ton of cash.
    Last edited by 91GriggsGT; 01-17-2012, 08:22 PM.

  • #2
    So the options are heads or heads and cam? If that's the case I'd say heads and cam

    Comment


    • #3
      Heads and cam
      Vortex rear stand $75
      8.8 410s. $50

      **SKAGG NASTY**
      My goal in life is to not arrive at the grave in a well preserved body.
      but rather to skid in sideways, totally worn out, shouting "holy shit!!!.. what a ride!"

      1990 Foxbody GT for that ass
      11 4 door
      13 FX2 White 5.0

      Comment


      • #4
        Afr is a good choice. But I would look at a comp or Anderson cam instead of b-cam.
        07 GT500
        05 SRT10
        88 turbocoupe T-bird
        93 Cobra
        86 coupe
        Ducati 848

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        • #5
          Stud girdles are a waste of money on that setup, the springs to run a B cam are puny.
          Originally posted by racrguy
          What's your beef with NPR, because their listeners are typically more informed than others?
          Originally posted by racrguy
          Voting is a constitutional right, overthrowing the government isn't.

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          • #6
            It's very possible to make good power with a stock cam, and if you are looking to retain the best drivability possible I can understand it. Here's a cool article I remember from a while back....



            However, that said....if you are tearing it down that far you might as well take the extra time for the balancer, waterpump, and front cover R&R.

            As said above though....I would also advise against a B cam....it's just simply old technology (what ~20-years now?)....there are a lot better options out there for your time and money....however as opposed to just taking a guess, I'd get on the horn with AFR and have them make a recomendation that is best paired with their 165 heads.
            70' Chevelle RagTop
            (Forever Under Construction)



            "Opportunity is missed by most people because it is dressed in overalls and looks like work.”- Thomas A Edison

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            • #7
              Originally posted by mk5.0 View Post
              Afr is a good choice. But I would look at a comp or Anderson cam instead of b-cam.
              this
              1993 Vibrant Red Cobra #1741.

              If you want more inches - Stroke it!!!

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              • #8
                anderson nt1 cam and afr165's netted 301/322 to the wheels on a 30 over 302 with cobra intake and 70mm tb and 76mm maf

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                • #9
                  According to that article link, they made 278hp with an intake/carb swap on an otherwise stock 302? Added heads and headers for 400hp? I don't see it.

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                  • #10
                    And I would choose TW170's over the 165's. More potential to grow and allows you to run a larger cam(more lift).

                    Comment


                    • #11
                      Originally posted by Broncojohnny View Post
                      Stud girdles are a waste of money on that setup, the springs to run a B cam are puny.
                      I picked them up used and all that hardware came with the heads.

                      Originally posted by Diabolic View Post
                      And I would choose TW170's over the 165's. More potential to grow and allows you to run a larger cam(more lift).
                      See above.

                      Comment


                      • #12
                        I appreciate the info so far fellas. I am looking to get as much info / first hand experience as possible.

                        I just picked the B cam due to not having to clearance the pistons. I will look around at different options.

                        I did send an email to AFR to see what they would recommend.

                        Really, the plan is to get as much as I can out of this motor with a little coin, then when it goes boom......Thats when the money starts flowing into a stroker for the car.

                        This car is strictly a track car. No street at all.

                        I would post a pic but I am at work and the internet sucks out here. Almost feels like dial up.

                        Here is a link to the build thread.

                        http://www.dfwmustangs.net/forums/showthread.php?t=8900

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                        • #13
                          Said this before, but that car is sooooooo sick!!!
                          Ded

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                          • #14
                            Originally posted by Vertnut View Post
                            According to that article link, they made 278hp with an intake/carb swap on an otherwise stock 302? Added heads and headers for 400hp? I don't see it.
                            I had a stock shortblock carb'd 306 with some oooooold ass aluminum gt40 heads and a comp 282 cam. 420 flywheel horse, ran 7.80s in a 3350lb car.
                            Vortex rear stand $75
                            8.8 410s. $50

                            **SKAGG NASTY**
                            My goal in life is to not arrive at the grave in a well preserved body.
                            but rather to skid in sideways, totally worn out, shouting "holy shit!!!.. what a ride!"

                            1990 Foxbody GT for that ass
                            11 4 door
                            13 FX2 White 5.0

                            Comment


                            • #15
                              Originally posted by Txstang1 View Post
                              I had a stock shortblock carb'd 306 with some oooooold ass aluminum gt40 heads and a comp 282 cam. 420 flywheel horse, ran 7.80s in a 3350lb car.
                              420 flywheel is not 400 at the wheels. Is the article talking flywheel or rear wheels? I didn't see which. You had aftermarket heads and they used stock E7's.

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