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Thread: Stroker 408 1st Dyno makes 450HP

  1. #1


    JDreamR/T's Avatar
    I gots to have mo'par-ts!

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    Default Stroker 408 1st Dyno makes 450HP

    Hey everyone, been a minute. Just wanted to update with a little video clip of the R/T. Actually got it on the dyno for 3 pulls a month ago. Have a lot to be thankful for, the truck has come a long way from a year ago rebuilding it in my driveway. Had a few setbacks along the way, but very happy truck is running very strong. Actually planning to go back to get torque figures, as the speed shop was unable to get a tach signal.
    Special thanks to Flyin' Ryan Performance for getting this dialed in real nice in only 3 email revisions!! Ryan also was incredibly kind in honoring a tune that I won from the Hagerstown, MD nationals raffle back in 2015! (Regrettably was unable to attend that year)

    Big thanks to Richard at HiPoTek for helping me source the parts I needed through the pandemic, as well as his advice. Thanks everyone else too who has followed along, you all know who you are.

    Build Specs:
    Forged SCAT 408ci stroker
    SCAT 4340 I-beam rods
    ICON IC9977 4032 Pistons
    Engine Pro Racing Plasma Moly Rings 43M5523
    Ported Mopar R/T 2.02 Heads 1.8" IH Springs PAC (hughes #1129), +.10" Stainless Valves by SI
    4bbl M1 Port Matched
    52x55 F&B TB
    Comp Cams HiPoTek HPT236XR 236/242 .544/.558" 106LSA
    Spintech Mid Headers, X-pipe, Dual 3" Hooker Aerochambers Dumped
    30lb Holley Injectors.
    Mopar 130t Flywheel
    RAM 10.5" Clutch 98390T
    TKO600 TCET5008 5 Speed




    Looking forward to posting up some updates again, as I plan on getting the exhaust re-plumbed to exit in through a roll pan along with some other cosmetic upgrades./
    Hope everyone had a great thanksgiving and enjoys the Christmas/Hannukah New Year celebrations ahead!
    1999 R/T CC Flame Red
    //SHAKER// 408 Forged // TKO600 5spd // Spintech-Mids // FRP Tuned //

  2. #2


    98Dak408's Avatar
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    Default

    Not bad James! Looks like your head flow and cam work well together.

  3. #3


    krs1r/t's Avatar
    want more inchs STROKE IT

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    Very nice

    Bad Luck Truck
    Current setup
    „R„block 429ci W5 heads 700hp N/A
    1/8 mile #'s 6.54@104 1.39 60’

    Old 1/4 numbers below with 408
    Fastest N/A 2010,2011,2014
    477-RWHP ?-RWTQ

    11.244 ET @ 119.71mph N/A
    FOXHOLE RACING
    "If you like me good, if you hate me, even better!"
    Chris

  4. #4

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    Nice. I have almost the same build.

  5. #5

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    Surprised a bit by the lsa at 106. You have a vacuum booster?
    How is she to run on the street?
    You running with 58CC head chambers?

  6. #6
    niebs's Avatar
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    Nice man! Im sure its a fun drive.

  7. #7

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    Congrats on getting it done! That is a tight LSA, be interested to see what she runs.
    408, HiPoTek, FRP Tuning, Martin Saine 46re
    12.33 @ 110
    2018 Renegade Raceway Summit Series Sportsman Champion

  8. #8


    JDreamR/T's Avatar
    I gots to have mo'par-ts!

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    Quote Originally Posted by 98Dak408 View Post
    Not bad James! Looks like your head flow and cam work well together.
    Yes it appears that they do! Thanks for letting me steal that cam from your 408 All those hours with the die grinder returned some good dividends

    Quote Originally Posted by arro222 View Post
    Surprised a bit by the lsa at 106. You have a vacuum booster?
    How is she to run on the street?
    You running with 58CC head chambers?
    Arro, my brakes are still OK even w/ the OE vacuum booster on the street. However I really need to invest in upgrading to big brakes next priority for sure. At a minimum the '03 disk conversion.
    Quote Originally Posted by chase1500 View Post
    Nice. I have almost the same build.


    Quote Originally Posted by mikset View Post
    Congrats on getting it done! That is a tight LSA, be interested to see what she runs.
    Me too! Can't wait to make a pass with the truck on the strip hopefully this spring. I was very curious on seeing my torque curve as well, gotta get it back to the dyno again when I can catch a break.

    Also would love to strap my stock '15 scat pack to the same dyno just to compare the two
    1999 R/T CC Flame Red
    //SHAKER// 408 Forged // TKO600 5spd // Spintech-Mids // FRP Tuned //

  9. #9


    99dart's Avatar
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    OUTSTANDING!!! Sounds great and making some nice HP! I'd love to get mine on a dyno sometime, but... nothin' around my pohdunk town.
    99 DA CC R/T
    13.97@100 w/modded kegger & ported TB
    12.96 @103 new 365 C.I (guessatune
    http://imgur.com/a/lOVuZ

  10. #10


    99dart's Avatar
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    BTW, the 03 brake upgrade made a HUGE difference in my stopping power! If/when you get the spindles make sure you get the calipers and brackets with them. I had to order special METRIC bolts just to bolt the calipers on. THEN, the wheels rubbed the caliper brackets! I had to do some "clearancing" so the wheel would even turn!
    99 DA CC R/T
    13.97@100 w/modded kegger & ported TB
    12.96 @103 new 365 C.I (guessatune
    http://imgur.com/a/lOVuZ

  11. #11
    9t9-5.2's Avatar
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    I installed 03 Durango brakes with the original TRW calipers. Using R/T wheels mine didn't rub. I believe there were two caliper manufacturers.

    Durango Brakes.jpg

    "Excuse me if I have some place in my mind, where I go time to time"

  12. #12

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    Not to get the post off track, but the I have been wanting to do the front disc mod. Everything I found was on a 2003/2004 Dakota, take where the brake line hooks to the frame and take everything from there out, brake line, spindle (knuckle), brakes, caliper, housing, bolts. Does that sound right? Should 100% bolt-on to my 2001 with all of that.

  13. #13


    99dart's Avatar
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    Quote Originally Posted by musky mike View Post
    Not to get the post off track, but the I have been wanting to do the front disc mod. Everything I found was on a 2003/2004 Dakota, take where the brake line hooks to the frame and take everything from there out, brake line, spindle (knuckle), brakes, caliper, housing, bolts. Does that sound right? Should 100% bolt-on to my 2001 with all of that.
    Yes & yes! I used NAPA brackets/calipers on 04 spindles and had rubbing issues. So, get the whole schmeer!
    99 DA CC R/T
    13.97@100 w/modded kegger & ported TB
    12.96 @103 new 365 C.I (guessatune
    http://imgur.com/a/lOVuZ

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