Stock 318 2 Barrel Cam Choice

Small Block Mopar Engine

  1. shittyslant6

    shittyslant6 Well-Known Member

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    So I recently bought a bone stock '73 318 2 barrel.
    Since it is going to need to beat up on some stock mustangs from my high school, I am going to do a cam swap and put on a '71 340 4 barrel intake I got with the engine. My question is; since I am only changing the cam and intake, what cam would be best in terms of power and rump rump factor.

    I was thinking about one of these three, but I want to see what you guys suggest.

    COMP Cams K20-671-4: Comp Cams Nostalgia Plus Camshafts - JEGS High Performance

    DODGE COMP Cams K20-247-4 COMP Cams Magnum Solid Cam and Lifter Kits | Summit Racing

    Edelbrock 7177: Performer RPM Camshaft Kit for Small Block Chrysler - JEGS High Performance
     
  2. RustyRatRod

    RustyRatRod I was born on a Monday. Not last Monday. FABO Gold Member

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    Only the cam? Stay with stock. A cam needs to have the correct valve springs for it and if you're not willing to do that, it's a useless proposition. So leave it stock.
     
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    • eekvonzipper

      eekvonzipper My Member is Legendary! FABO Gold Member

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      The Kits He listed have the Springs Lifters and and a Chain Set Triple R...
       
    • oldkimmer

      oldkimmer FABO Gold Member FABO Gold Member

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      Way to much cam for a stock street 318. Even if u installed them 8* advanced. U will need to up the compression. U would need at least a 3500 stall and 3.91s to take advantage of it. Kim
       
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      • krazykuda

        krazykuda Well-Known Member FABO Gold Member How-To Section Editor

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        Last edited: Sep 25, 2021
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        • 66jim

          66jim Well-Known Member

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          Find a cam with no more than 210@.050 intake. Maybe a replacement 360 2 bbl or similar. If you go roughly 10 degrees more duration you won't lose bottom end power.
           
        • YY1

          YY1 Well-Known Member

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          Comp XE 256?

          Summit K6900?

          POPCORN and ring side seats.....
           
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          • 318willrun

            318willrun Utube channel 318willrun

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            • jas0162

              jas0162 Well-Known Member

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              I would run the stock cam or something close if it is worn out. You don’t want to over do it and make it a pig with no torque on the bottom. Been there done that.
               
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              • 318willrun

                318willrun Utube channel 318willrun

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                i have to ask.... what mustangs are you going after ???? You might need more than just a 4bbl/cam...
                 
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                • teringer

                  teringer Well-Known Member

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                  imo all the cams are wrong /unless you have a clutch / stick with a 340( stock) cam it would be the largest to use
                   
                • toolmanmike

                  toolmanmike Moderator Staff Member FABO Gold Member

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                  • 12many

                    12many Well-Known Member

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                    If say a 1974 Mustang II, it won’t be a problem I’m thinking!
                     
                  • 318willrun

                    318willrun Utube channel 318willrun

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                    It's written in present, so I'm thinking if he's shooting for a Coyote, he would have better luck in the woods with a .22 :D
                     
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                    • toolmanmike

                      toolmanmike Moderator Staff Member FABO Gold Member

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                      COMP Cams 20-221-3 COMP Cams Xtreme Energy Camshafts | Summit Racing

                      (XE256H-10) 212/218 256/268 .447/.455 110° 1000-5200

                      I like the splits for stock exhaust manifolds.

                      Here's one in a 318. It has a nice little lope and in this vid it's in a stock 318-2. The car owner took the video after cam break in but before he installed the 901 springs that came in the kit. He said the 901's took away some of the lope at idle and also it really runs nice after installing a 4 barrel.

                       
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                      • 1966Post

                        1966Post Well-Known Member

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                        Edelbrock Performer Plus nice small bump in lift and short duration. Good torque cam
                        .420 204@.050
                         
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                        • Killer6

                          Killer6 Well-Known Member

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                          Exactly what type of "stock Mustangs" are We talking about?
                           
                        • eekvonzipper

                          eekvonzipper My Member is Legendary! FABO Gold Member

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                          I agree with this post, Lol
                           
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                          • shittyslant6

                            shittyslant6 Well-Known Member

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                            the crap little sn95's of the 90s.
                             
                          • shittyslant6

                            shittyslant6 Well-Known Member

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                            and one dipshit in his new 2019 4 banger mustang his parents bought.
                             
                          • shittyslant6

                            shittyslant6 Well-Known Member

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                            Yeah, that one sounds good, decent lope, and could be pretty wicked with open headers.:D
                            Just wanted something that'll wake it up a little bit, was probably getting a little greedy with the .508 lift purple cam I was looking at.
                             
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                            • shittyslant6

                              shittyslant6 Well-Known Member

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                              I like that .464/.464 cam, since it'll never really see the high side of 5600.
                              Thanks for the suggestions!
                               
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                              • mopowers

                                mopowers Well-Known Member

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                                Do you intend to keep the non-adjustable stock stamped rocker arms? If so, a solid cam is off the table.
                                 
                              • shittyslant6

                                shittyslant6 Well-Known Member

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                                '
                                Well now that you mention it no, i will not be having a solid cam. The best option now is the cam KrazyKuda suggested, a comp .464/.464 268/276 hydraulic flat tappet cam.
                                 
                              • RustyRatRod

                                RustyRatRod I was born on a Monday. Not last Monday. FABO Gold Member

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                                That cam for a stock 318 is "a bit" big.
                                 
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