Share your "Low Deck Stroker" Combo

Big Block A body Tech

  1. Woodie

    Woodie Take-off EH!

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    Would like to read about members builds. What combination of parts are you running? And if you had do it over again what would you change? Opinions on cubic inchs too.
     
  2. WEBBY

    WEBBY FABO Gold Member FABO Gold Member

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    There is a write up on a 383 - 438 build. Thanks Webby.
     
  3. Fast01

    Fast01 Well-Known Member

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    I like a long rod, so my combo's a bit different from the usual "stroker kit" combos. I have a 400 block bored to 4.402", a 4.250" stroke, Icon pistons with a 1.122" compression height and a 6.700" rod yielding 517 cubes. That combo puts the pistons down in the hole .033", so the block was then decked to zero. Most 512 kits use a 1.320" compression height with a 6.535" rod which gives you zero deck already, but I like the long rod. There's more than one way to skin a cat after all!
     
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    • 440outlawdart

      440outlawdart Well-Known Member

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      540 low deck,iron block,venolia pistons,flat top,bme 6.53 alum rods,990 pin,2.20 big end,crankshft specialty crank,knifeedge,4.500 stroke,2.20 rod ,400 mains,also have used ohio crank 499 rotaters they work good
       
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      • IQ52

        IQ52 Well-Known Member

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        1) 451, 950 Quick Fuel, MP single plane, ported 452 iron heads, Comp cams solid roller XR292R, Ross pistons, 9.5:1 compression, Scat H-beam rods, 440 factory forged steel crank cut to 400 mains, HV oil pump, 3/8 pick-up, MP windage tray, stock 4 qt oil pan........588 lb-ft @ 4,600 rpm and 621 hp @ 6,100 rpm. March 3, 2006


        2) 451, 850 cfm Mighty Demon, 383 single plane Victor intake, ported 906 iron heads, Racer Brown solid roller CCR-78/80, Ross pistons, 9.8:1 compression, Scat H-beam rods, 440 factory forged steel crank cut to 400 main size, HV oil pump 3/8 pick-up, MP windage tray, stock 4 qt oil pan..........555 lb-ft @ 5,800 rpm and 676 hp @ 6,800 rpm. August 4, 2007.

        Both fun on the street, but not efficient with 4.89 gears and a 4-spd manual. Both had the '71 Road Runner sideways a lot.
         
      • Woodie

        Woodie Take-off EH!

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        Sounds like these low deck strokers are the way to go to achieve 600hp+ on pump gas and still be reliable.
         
      • AndyF

        AndyF Well-Known Member

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      • AndyF

        AndyF Well-Known Member

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        • Hot Metal

          Hot Metal '69 440 Cuda

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          Wow, gotta say those are impressive numbers for a low comp motor with a small roller XR292R especially as the ivc on that is at 72 deg. making your CP somewhat low and with only .588"..... I built a 440SP motor back in the day in a similar vein with an 850DP (inferior), Team G int. (crap), 906 bv heads probably not much more than 260cfm (inferior), Comp Cams SFT .650/.650 290@.050, factory bottom end, approx 9.8:1 CR, HV pump external oiling and could only manage 490hp worked out on weight/mph, I was on the right path though I think?...the weight of those rods/pistons in an SP motor is enough to kill the hp....1100/900gms per hole if I remember correct.
           
          Last edited: Feb 12, 2018
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          • famous bob

            famous bob mopar misfit FABO Gold Member

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            You would be surprised at how much I`ve changed a team G , the huge plenum is good for big engines, if u can get the runner flow close to equalized. Made a bunch of diff. but still messing w/ it. My air flow meter went down and haven`t replaced it yet.
             
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            • Hot Metal

              Hot Metal '69 440 Cuda

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              My t-G was a Dom flange with a 2" adapt open spacer for the 850 for even more plenum, motor ran really well, I hit 7300rpm in the traps a few times:eek: but the hp didn't seem to be there with that set up.
               
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              • famous bob

                famous bob mopar misfit FABO Gold Member

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                That combination isn`t supposed to work well on anything , so I`ve read. The other way, w/ a reg. 4 barrel intake w/ a dominator spacer on top, is what I`ve read is the hot ticket. I don`t have room for even a victor w/ my filter. Think I might have the team G professionally flowed when I get done w/ it, 2 more tricks to go first.
                 
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                • moper

                  moper FABO Gold Member FABO Gold Member

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                  '70 383 +.030 block, added main studs, Muscle Motors 383/496 stroker package, ported Stealth heads, RPM intake, factory manifolds, Dwayne Porter solid flat tappet, runs power brakes. Engine won Stock Appearing E body at Carlisle and made 450 to the tire through stock exhaust system. With headers, bigger carb, bigger pipes it's made 480. Has 20K miles on it, gets 14mpg, and we're thinking a solid roller for 2019. I would not use the MM kit again - there was no value to waiting for MM to put it together.
                   
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                  • Bighead440

                    Bighead440 Well-Known Member

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                    471"B: flat-top ROSS pistons, 6.535" rods and crank (3.915" stroke) from 440Source. Ported Edelbrock RPM heads (milled to 76cc), M1 tunnel ram with 2x850 Quickfuel carbs. Racer Brown roller cam 280@.050",.688" lift, tight lash. Hughes roller rocker setup with Manton custom .135" wall pushrods, Lunati roller springs and Howards lifters. Zoomie step headers by Dan Lemon (it's a front engine rail dragster). Runs high 7's 1/4mi. and high 4's 1/8mi. It needs bigger port heads, but RPM's are what we had laying around.
                     
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                    • AndyF

                      AndyF Well-Known Member

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                      470 on the dyno:
                       
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                      • Woodie

                        Woodie Take-off EH!

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                        What would stock cylinder heads support on a 470ish cube engine?
                         
                      • jamesdart

                        jamesdart Well-Known Member

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                        My first one was a
                        383 block 440 crank, rebuilt ly rods, custom venolia pistons, 9.2:1, stock rebuilt 906 heads, torker intake, old 800dp, Hughes 238/244 hydraulic cam, 1 3/4" headers, Fully dressed street car with 3.73s went 11.80.

                        It was a fairly cheap combo and I think it ran great for what it was. I need to go through it now though, and we built its replacement.

                        #2, 400 block with another 440 crank. Molnar rods, icon pistons, I think it came in around 10.8:1, trick flow 240 heads, m1 single, quickfuel 1050, 2" headers, comp solid 264/270. I know it's only 20 more cubes but I think it should be a big difference in the same car.

                        If I could have started #2 over, i would do a 470 with a main girdle. I'm still not really sold on the 500" combo in a b block. I know people had built 470 in the past but I thought they were a little more "custom" with offset ground crank, and I thought things got funny with the Chevy width bearing on the molar crank, and Chevy rod. I didn't think they were so popular. I didn't want to go through and try to reinvent the wheel with my machinist, he'd built a bunch of 431/451 combos. In the middle of my build andyf did the 470 and showed how it's a pretty standard combo now.
                         
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                        • 68 HEMI GTS

                          68 HEMI GTS Well-Known Member

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                          Here's the one I built for my roadrunner

                          Wouldn't change a thing. my goal was to run 10.90's, through mufflers, driving to he track, on pump gas. It did that with ease and it's still a very street friendly combo.

                          400/511 source kit. -24 cc dish 10.6:1
                          Indy S/R ported by MCH. (standard port window) 75cc chamber
                          SFT (nitridted) 260/266 @.050 on 110 in at 106 .620 lift
                          TTI 2" stepped headers

                          727 T/A valve body
                          9 1/2 vert
                          4.10 gear, 28" Hoosier QTP
                          3" exhaust with delta flows
                          Stock suspension

                          Weights 4000# with me in it

                          Best pass with a six pack (4412 center)
                          image.jpeg

                          Best pass with a TM6 and a 1050/4150 anular
                          image.jpeg


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                          Last edited: Mar 11, 2018
                        • 68 HEMI GTS

                          68 HEMI GTS Well-Known Member

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                          I Built this 400/499 for my buddies dart, now my dads car. Kind of a compromise between street/strip. I'd do a few things different on this one. I would have went with a 4.250 crank & more cam lift. I have a few changes I'm going to make on it this year when I freshen the motor, including a Indy single plane and a 1050 dominator. Also going to swap converters and do some suspension tunning now that I can get it in my garage. This one did see a ton of street duty over the last 8 years.

                          400/499 source kit flat top
                          Zero deck 11.8:1
                          440-1 325's
                          Solid roller 270/270 .650/.650 @ 110 in at 106
                          Indy tunnel ram, 2 780's
                          727 with A&A parts
                          Turbo action J
                          4.30 gear 29" tire

                          10.0 @ 136.5 spinning


                           
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