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    |_ Custom Dodge Magnum Rockers->
      |_ Custom Adjustable Roller Rockers
      |_ Custom Stud Mount Roller Rockers
      |_ Our Famous Non Adjust Rockers
    |_ Custom Ground Affects Kit
    |_ Custom HEBB Magnum Girdle Kit
    |_ Custom Tuned Long Tube Headers
    |_ Stainless Braided Brake Lines
  |_ Dodge Viper
  |_ Gen 3 Hemi
  |_ Mopar A, B, E Body Bracing
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Customers

Brian C.

Brian C.

I have never had any problems with John on any transaction. One of the few vendors I have never had a single problem with. Including paying overnight...
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Andrew R.

Andrew R.

I am very pleased with the quality of the magnum deep pan, and the best part is that it really is not much deeper than the stock pan so I dont have...
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Daryl S.

Your 408 runs like a dream. I think we are well over the 400hp side, a new 300hp mustang could not overcome, it is a beast. I am very happy with the...
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Scot C.

Scot C.

Thanks for everything John. We will be doing business again. At Nationals 6.38 on a 6.54 dial in.
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Mike M.

John's very honest, something that's hard to find these days. This means he'll tell you the truth and you may not want to hear it. LOL. The best...
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Alan P.

First off, I just have to say that I have never came across a more stand-up guy that takes his time to connect with his customers and have the...
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Tom R.

John--the 408 engine you built for me is outstanding. Feel free to give him my cell number and I'll happily give you a strong reference. Thank you...
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Matt C.

Thanks again John, someone who’s willing to help and not just sell parts. So, looks like you’ll be listed on my referrals. Keep in touch. Thanks...
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Ian A.

Ian A.

I wanted to thank you for all your help and support, for being so patient and for being a good, honest person and especially so professional....
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Colton H.

Colton H.

"Johns the man, bought a 410 package from him years ago after I got back from overseas. The caveat I gave John was that it had to pass Californian...
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Jim W.

Jim W.

Thanks for the fast parts service and Great cylinder head porting! Jim
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Henry T.

Henry T.

HEY! Everything is installed and car runs AWESOME! Thanks for everything, Thanks again. Henry 2000 Dodge Viper R/T 10
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Dan B.

Dan B.

Dakota R/T 408, Thanks for everything! Dan https://www.youtube.com/watch?v=wZekmXKYXA4
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Michael D.

I just wish there were more guys like you around for us gen3 guys. Most just want a sale and don't care to actually help let alone give advice or...
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Brian A.

Brian A.

The 408 engine runs strong, put on dyno 405hp with 415tq N/A not shabby.. also was on 22" wheels with those numbers est. 500-525 @ crank. Thanks so...
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Felix C.

How awesome is this! This superb service is exactly on point w/what everyone have raved about. Thank you, Felix
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Phil S.

Phil S.

Great job creating this Dakota R/T Ground Affects Kit. Phil
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Derek B.

Derek B.

Great Personalized service. Derek
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Harold R.

John, Thanks for the great customer service! Harold
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Darren B.

Darren B.

John,Racing flat out on the 440/533 engine over 1 season & 65 passes at 8.97@150mph 1.27 60' getting great results!!Engine is GREAT!Thanks mate!
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Steve F.

Thank You for all your help and hookups with the parts - sounds like a lot of people appreciate it, I'm one of those people. - Steve
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David P.

David P.

Thanks for the brake lines !
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Bruce P.

Bruce P.

John, you have been so prompt and helpful. Take care my friend and thanks again. I'll be back. Bruce
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Jim A.

Jim A.

Two year champion in modified tractor pulling classes named "Watch This Trick". Chrysler 426 Hemi. Thanks for the Great Service!
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Brian R.

John!! Got my Viper back together, dyno tuned. Super happy with the results of your work!! Gained 112 RWHP and 107RWTQ!!!!! More at the crank. Sounds...
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Famous "No Adjust" Bolt On Magnum Roller Rockers

Outselling all other Roller Rockers for Dodge Magnum engines, We Teamed with Harland Sharp to develop this Custom Made roller rocker in 1998. Outstanding gains in performance, power, and dependability can be achieved with this Simple Bolt On rocker arm system. 

They can and have been used with camshaft swaps, valve spring upgrades and revised cylinder head packages. No RPM limits or restrictions are placed on these rockers as found with other style rocker arms requiring additional costs in guideplate, hardened pushrod and valve cover upgrades.

Made for 3.9L, 5.2L , 5.9L, 408 Stroker

Fits under stock valve covers

No beating baffles or drilling valve covers required

No guideplates required

No hardened pushrods required

No lash adjustments required




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