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A New Product->
Air Conditioning Custom Kits->
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Custom Parts Development->
  |_ Dodge Truck->
    |_ Custom All Wheel Disc Brake Kits
    |_ Custom Billet Fuel Rails
    |_ Custom Billet Radiators
    |_ Custom Billet Valve Covers
    |_ Custom Deep Oil Pans
    |_ 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
  |_ Ringbrothers Custom Parts
Cylinder Head Porting->
Electric Cooling Fans->
Electronics and Delay Boxes->
Engine Parts->
Engine Swap Kits
Engines->
Exhaust Components->
Exterior Vehicle Components->
Fasteners->
Fire Equipment->
Floor Mats->
Fuel Injection Systems
Fuel System Components->
Gaskets->
Gauges->
Gear Venders Overdrive Units
Ignition Components->
Lift Kits->
Lowering Kits->
Nitrous Kits->
Race Car Bodies->
Race Wear and Accessories->
Radiators and Components->
Rear End->
Roll Cages and Accessories->
Seats and Custom Interiors->
Shocks->
Spark Plugs->
Striker Viper heads Return
SuperChargers->
Suspension Components->
Tech Help
Throttle Bodies->
Tires->
Traction Components->
Transmission Components->
Tuning and Controllers->
Turbocharging->
Valvetrain Components->
Viper
Water Pumps->
Wheels->
Wideband Monitoring Systems->
Wiring harness and Accessories->

Customers

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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Buyer

Super guy to deal with! GREAT SERVICE!! GREAT PRICE!!
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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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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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Robert S.

Robert S.

Great parts and service! Robert
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Barbara H.

John, Thanks again for making Colton's dream come true! The truck is in the body shop, the cowl hood arrived and the new 408 engine you built is...
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Dan F.

Dan F.

John, The truck is not done but i drive it daily and it runs good now. Eventually id like to do the rear brakes! Thanks
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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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Kyle M.

Kyle M.

John, I am very pleased with the brake conversion. The kit was very easy to install and I didn't have any problems and look very good as...
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David P.

David P.

Thanks for the brake lines !
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Phil S.

Phil S.

Great job creating this Dakota R/T Ground Affects Kit. Phil
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Jim W.

Jim W.

Thanks for the fast parts service and Great cylinder head porting! Jim
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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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Steven

Southeast Performance and John Mercedes have been "OUTSTANDING" to do business with. I couldn't be happier.
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Kris L.

John, Sitting in the car with a big smile on my face. Thanks for the quality brand products and the great price. Cheers Kris
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Bruce P.

Bruce P.

You’ve got a big fan in me. Oh yeah, the car is awesome. Runs like a raped ape. So thanks a lot !
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Harold R.

John, Thanks for the great customer service! Harold
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Daniel C.

Daniel C.

Thanks for your exemplary service. Keep doing what you're doing. Daniel C.
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Kayden G.

Kayden G.

Well your service is amazing. Never had better from any company I've ordered from! Kayden
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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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David A.

David A.

Thanks for everything, David
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Taylor M.

Taylor M.

Thanks a lot John !
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Steve V.

Steve V.

You are the only guy who I trust to do the most important thing I'll ever do to my Roadrunner, a car that means more to me than any inanimate object...
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Maurice

Maurice

Maurice 73 Dodge Dart
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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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Dodge Magnum Adjustable Roller Rockers

Moving further ahead in our Modern Line of Custom Series roller rockers, In 2000 we assisted in the development and R&D of the First True Dodge Magnum Custom Billet Adjustable roller rocker. Borrowing the design of our first successful shaft style rockers, we added a larger wider rocker body, larger pins and rollers including lash adjusters for more demanding engine use and valve spring pressures. Designed for Custom Engine builders to create a BluePrinted valvetrain with Custom Length pushrods. These new adjustable rockers can be found as standard equipment on all our Precision Built Performance Engines.




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