408 Cam on the way

Small Block Mopar Engine

  1. 512Stroker

    512Stroker We are all here because we are not all there.

    Messages:
    2,223
    Likes Received:
    1601
    Joined:
    May 30, 2016
    Location:
    Freedom, MO
    Local Time:
    9:11 AM
    J par what are the spec's of your current cam? So we can compare
     
    • Thanks! Thanks! x 1
    • 512Stroker

      512Stroker We are all here because we are not all there.

      Messages:
      2,223
      Likes Received:
      1601
      Joined:
      May 30, 2016
      Location:
      Freedom, MO
      Local Time:
      9:11 AM
      I am currently running a Comp XE274 cam.
      I love the cam, I hate the Comp retro Hyd Rollers
       
      • Like Like x 1
      • j par

        j par Well-hung Member

        Messages:
        27,564
        Likes Received:
        14989
        Joined:
        Jul 2, 2014
        Location:
        Portland Oregon
        Local Time:
        7:11 AM
        360 block bored 40 over.. Scat cast crank, (internally balanced) scat I beam rods, icon flat top pistons with valve reliefs total seal rings 11.3 to 1 compression .010 above deck.. 596 heads arp bolts with very mild porting with 202 valves. Crower Springs, Smith Brothers pushrods, Hughes 1.6:1 roller rockers.. originally a purple performance hydraulic cam given to Ken at Oregon cam grinders and ground into a solid lifter part number 175... At 259 intake 267 exhaust 107 lobe separation and 582 - 603 lift. Then he ground it leaving the 107 lobe separation making it a one-off cam, but with the rest of the specs being a part number 1313 which consists of it 238 248 duration and a 506 526 lift..
        This all attached to a 440 source billet flywheel with arp bolts act technologies diaphragm clutch with arp with a Hays clutch disc.. a833 transmission topped with a Hurst v gate..
        Into a Portland Driveline specialties Driveline with solid U-joints to a Dana 60 with a spool 354 gears 35 spline axles with green bearings and two and a half inch studs...
        Oh yeah and I just put a Nitrous system on it un tested...lol..
         
        • Like Like x 1
        • Thanks! Thanks! x 1
        • TrailBeast

          TrailBeast AKA Mopars4us on Youtube

          Messages:
          21,622
          Likes Received:
          9375
          Joined:
          Mar 11, 2011
          Location:
          Arizona
          Local Time:
          7:11 AM
          I have a roller regrind from Ken 214/224 @50 with a 110 lsa and .512 lift.
          Iit's pretty nice for building torque but sounds pretty mild.
          If I were to, (and I may) get another cam it will be from them but with a little more duration though not as much as yours probably.
          Ken hit this one on the nose for what I asked out of it.

          Yours should be pretty nasty sounding and run good both.
          Here's a link to a video of my exhaust with Flowmaster 40's and 2.5 dual exhaust.
          www.letsgocomputers.com/movies/idlesound.mov
           
          Last edited: Apr 21, 2020
          • Like Like x 2
          • Idaho

            Idaho Well-Known Member

            Messages:
            2,601
            Likes Received:
            263
            Joined:
            Oct 17, 2006
            Local Time:
            7:11 AM
            My mistake for asking that question without the info.

            It's going into a 69 Dart resto mod, maybe 3200 lb? Just a tire burning street cruiser, maybe a rare 1/4 mile.
            360 Magnum with stroker kit
            9.8 static CR
            RHS heads by IMM
            Air gap intake
            750 Holley carb
            Dougs 1 5/8 headers
            A833 OD (has to be a stick)
            4.10 diff
            28" rear tire (285/40/18 IIRC)
            HDK front susp.

            Dart HDR 2 small.jpg
             
            • Like Like x 2
            • Idaho

              Idaho Well-Known Member

              Messages:
              2,601
              Likes Received:
              263
              Joined:
              Oct 17, 2006
              Local Time:
              7:11 AM
              That sounds nice. Gives me some perspective. Is there a thread with more on your car?
               
            • Idaho

              Idaho Well-Known Member

              Messages:
              2,601
              Likes Received:
              263
              Joined:
              Oct 17, 2006
              Local Time:
              7:11 AM
              Nice. That's a fair bit wilder than where I'm headed. Is there a thread on the car?
               
              • Like Like x 1
              • TrailBeast

                TrailBeast AKA Mopars4us on Youtube

                Messages:
                21,622
                Likes Received:
                9375
                Joined:
                Mar 11, 2011
                Location:
                Arizona
                Local Time:
                7:11 AM
                Sorry, no build thread or anything just scattered mentions and small video's here and there.
                I don't post much of what I do with my car because I don't want to hear it.:D
                You know, you should have done this, and I would have done that.
                That's about to change here pretty soon because I'm going to need some video camera practice.
                I'll probably get that practice on the cars we have here, so people will be seeing more of them in more detail than they have before.
                 
                • Like Like x 2
                • j par

                  j par Well-hung Member

                  Messages:
                  27,564
                  Likes Received:
                  14989
                  Joined:
                  Jul 2, 2014
                  Location:
                  Portland Oregon
                  Local Time:
                  7:11 AM
                  Dozens of build threads over the years..
                  You name it I'm shot at being built.... Could even includes other engines that I put in there and other automatic transmissions as well again you name it... Front end being built? Homemade headliner being built? Rear end being built..
                   
                • Wyrmrider

                  Wyrmrider FABO Gold Member FABO Gold Member

                  Messages:
                  3,611
                  Likes Received:
                  1746
                  Joined:
                  Sep 5, 2016
                  Location:
                  los angeles
                  Local Time:
                  7:11 AM
                  Thumper lovers comp tjhumper lobes are on page 12 of the comp lobe catalog no .904 lobes
                  Roll your own based on your needs
                  following as some cams in the Thumper range
                  ...............@.006 .050 .200 lift .200 where avilable
                  Engle K56 274 224 149 .336 .504

                  XE275HL 275 231 153 .525 110LCA IC 64 ABDC Smallest comp .904 lobe

                  Lunati 704 276/284 234/242 .513/.533 110LCA Voodoo

                  Howard 277/283 230/236 531/537 110 LCA

                  340 cam 279 210 .429 2899206 intake @.006 stock 340 cam for comparison at 0.006

                  Thumper 279-296 227/241 486-473 107

                  318 Whiplash ??? 213 480 109 LCA Hughes

                  340 Whiplash ?? 223 550 107 LCA Hughes

                  Purple Plus 280 233 148 .316 ,474 smallest Comp PP .904 lobe

                  Rattler 281 227 .480 Howard

                  voodoo 279 234 .513 voodoo intake lobe
                  XE-HL 279 235 153 .356 .534
                  ...............006 .050 .200 lift
                  Howards 279 256 232 152 .357 .535

                  Engle K58 282 230 148 ,343 ,514 276@.008

                  The super long exhaust makes no sense to me if headers or late/ aluminum heads and long even for stock heads
                  ask yourself are you limited to half inch lift
                  It would seem that the 340 Whiplash would Thump the Thumper and Rattler
                  and the top four cams would be a better choice or get those lobes ground on whatever LCA floats your boat
                  The bottom 4 are a little bigger than the thumper intake but may have a better intake/ exhaust split some exhaust lobes are not shown U pick
                   
                  • Like Like x 2
                  • Idaho

                    Idaho Well-Known Member

                    Messages:
                    2,601
                    Likes Received:
                    263
                    Joined:
                    Oct 17, 2006
                    Local Time:
                    7:11 AM
                    Cool info. Thanks. Sorry if I didn't clarify, I've already chosen, it's in the works. Just making conversation about it, and interested to get some idea what to expect from those who know more than me.
                     
                  • 12many

                    12many Well-Known Member

                    Messages:
                    1,739
                    Likes Received:
                    2111
                    Joined:
                    Dec 14, 2016
                    Location:
                    South Carolina, Thank God
                    Local Time:
                    9:11 AM
                    You have what you have, looks matched to me. Based on the car and everything else listed if you get it to hook (drag radials) IMO that should be a high 11’s beast easily, and if you work at it, maximizing everything by methodical tuning etc vs. throwing money at it and changing out stuff for more trick things for example: suspension parts, I’d think mid 11’s. Anyone disagree or think it would run even better?
                     
                  • Idaho

                    Idaho Well-Known Member

                    Messages:
                    2,601
                    Likes Received:
                    263
                    Joined:
                    Oct 17, 2006
                    Local Time:
                    7:11 AM
                    Thanks. My original thought was something capable of breaking into the 12s. That was before going with a stroker.
                     
                  • lead69

                    lead69 hopeless car junkie

                    Messages:
                    1,431
                    Likes Received:
                    587
                    Joined:
                    Nov 5, 2006
                    Location:
                    Vancouver,Wa
                    Local Time:
                    9:11 AM
                    Nice solid street build for sure, I also run an od a833 and love it. I think that cam will work good for what you have, its a touch small for my taste but it will have torque for miles. The only thing I would say is it will not idle quite like a thumpr but it will still have a nice lope and great street manners.
                     
                  • Idaho

                    Idaho Well-Known Member

                    Messages:
                    2,601
                    Likes Received:
                    263
                    Joined:
                    Oct 17, 2006
                    Local Time:
                    7:11 AM
                    Well, my thought was to lean a bit toward torque. Your description is about what I was going for. I guess the final proof is yet to come but I'm optimistic.
                    I plan to install advanced 4 degrees as long as Ken agrees. I suppose I could always try it straight up later for more top end.
                    I'm about to put steel bushings in the A833 OD. Found a friend with a Bridgeport I can use to do that, and open up my bellhousing to fit the bearing retainer which will be turned down on his lathe.
                    Glad you're liking yours. Is it stock or modded?
                     
                    Last edited: Apr 22, 2020
                  • j par

                    j par Well-hung Member

                    Messages:
                    27,564
                    Likes Received:
                    14989
                    Joined:
                    Jul 2, 2014
                    Location:
                    Portland Oregon
                    Local Time:
                    7:11 AM
                    Steel bushings??..
                     
                  • lead69

                    lead69 hopeless car junkie

                    Messages:
                    1,431
                    Likes Received:
                    587
                    Joined:
                    Nov 5, 2006
                    Location:
                    Vancouver,Wa
                    Local Time:
                    9:11 AM
                    You definitely won't have a problem with torque!, I would be tempted to degree it in straight up myself, at any rate it will be a handful on the street when the clutch is dumped. Mine is a stock rebuilt cast iron case od that I had the bearing retainer machined down to fit my lakewood bell. The gear spread is as bad as they say but with a stroker the torque really helps cover it and that's where the cam you have will really shine. Eventually mine will hit the track and I am expecting less than optimum times for the hp but its a sacrifice I am willing to make for streetability with no cutting or thousands of dollars spent.
                     
                    • Like Like x 1
                    • Idaho

                      Idaho Well-Known Member

                      Messages:
                      2,601
                      Likes Received:
                      263
                      Joined:
                      Oct 17, 2006
                      Local Time:
                      7:11 AM
                      Last edited: Apr 22, 2020
                      • Like Like x 1
                      • Idaho

                        Idaho Well-Known Member

                        Messages:
                        2,601
                        Likes Received:
                        263
                        Joined:
                        Oct 17, 2006
                        Local Time:
                        7:11 AM
                        Nice to have the cast iron case. I've heard many do fine with just the aluminum case but since I can do it I will.
                         
                      • j par

                        j par Well-hung Member

                        Messages:
                        27,564
                        Likes Received:
                        14989
                        Joined:
                        Jul 2, 2014
                        Location:
                        Portland Oregon
                        Local Time:
                        7:11 AM
                        Don't forget to p.m. me when you take it down to the track! I want to be there for sure... I'm positive with your accompanying trick flow heads LOL you'll have the last laugh...
                         
                      • j par

                        j par Well-hung Member

                        Messages:
                        27,564
                        Likes Received:
                        14989
                        Joined:
                        Jul 2, 2014
                        Location:
                        Portland Oregon
                        Local Time:
                        7:11 AM
                        20150928_130516.jpg
                        I think when I rebuilt my 4-speed I put in new bearings, seals, synchros, and steel shift forks and new shifter throws and new shifter ears just to tighten everything up...
                         
                      • j par

                        j par Well-hung Member

                        Messages:
                        27,564
                        Likes Received:
                        14989
                        Joined:
                        Jul 2, 2014
                        Location:
                        Portland Oregon
                        Local Time:
                        7:11 AM
                        All in all really pretty easy...
                         
                      • Idaho

                        Idaho Well-Known Member

                        Messages:
                        2,601
                        Likes Received:
                        263
                        Joined:
                        Oct 17, 2006
                        Local Time:
                        7:11 AM
                        I was going to do the same but when I got in there everything was so pristine I decided to just do the bushings.

                        3AE32CFD-1978-4687-95C0-7351B3CE275A.jpeg

                        0E311E6E-7699-46DD-80DF-195B10D888F0.jpeg
                         
                        • Like Like x 1
                        • RustyRatRod

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

                          Messages:
                          70,792
                          Likes Received:
                          45722
                          Joined:
                          Jun 7, 2010
                          Location:
                          Georgia
                          Local Time:
                          10:11 AM
                          Not all of it. The big duration split with late exhaust valve closing adds to it as well. Of course, you can argue those two features also add overlap.
                           
                        • j par

                          j par Well-hung Member

                          Messages:
                          27,564
                          Likes Received:
                          14989
                          Joined:
                          Jul 2, 2014
                          Location:
                          Portland Oregon
                          Local Time:
                          7:11 AM
                          When I open my transmission up I was surprised that wasn't messed up. Something terrible happened at the track at the starting line and it turned out to be the rear end LOL it was one of those things that if I'm going to do this and I'm going to take it apart this far I'm going to spend the extra fifty bucks for synchros..
                          And the shifter levers were more so for the part that sticks out of the case we rounded a little bit and not gripping the shifter ears nice and tight and I wanted a nice tight shift..
                           
                        1. This site uses cookies to help personalize content, tailor your experience and to keep you logged in if you register.
                          By continuing to use this site, you are consenting to our use of cookies.