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Striker Viper heads Return
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Tech Help
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  |_ Guideplates->
  |_ Mopar Rocker Shaft Shims
  |_ Mopar W2 Rocker
  |_ Retainers->
  |_ Rev Kits->
  |_ Rocker Arms->
  |_ Seals->
  |_ Stud Girdle Kits->
  |_ Valve Covers->
  |_ Valve Springs->
    |_ Brodix Valve Springs
    |_ Comp Cams Springs
    |_ Crane Cams Springs
    |_ Crower Springs
    |_ Dart Valve Springs
    |_ Edelbrock Springs
    |_ Eibach Springs
    |_ Ferrea Valve Springs
    |_ Ford Racing Valve Springs
    |_ GM Performance Valve Springs
    |_ Isky Springs
    |_ K-Motion Valve Springs
    |_ Lunati Valve Springs
    |_ Manley Valve Springs
    |_ Mopar Performance Valve Springs
    |_ Pioneer Valve Springs
    |_ Sealed Power Springs
    |_ World Valve Springs
  |_ Valves->
Viper
Water Pumps->
Wheels->
Wideband Monitoring Systems->
Wiring harness and Accessories->

Customers

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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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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David P.

David P.

Thanks for the brake lines !
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Taylor M.

Taylor M.

Thanks a lot John !
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Mitch C.

Awesome work! Glad I went with you guys! Anyone I know of that wants to build I'll send your way! Thanks John! Your the man!! Mitch
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Robbie C.

Robbie C.

Great job all round !
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James G.

James G.

5.80 in 1/4 mile @ 244 mph & 3.76 @ 197 in the 1/8 mile
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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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Robert M.

John, Thank you for all you have done, From your previous email responses, you seem to be old school, a man of his word. Thanks again John for...
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Jared B.

John, You Rock! Thanks again for the great deals and speedy service. Really appreciate it. Jared Dakota R/T
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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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Ossi L.

you come highly recommended to me by Finnish racers!
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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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Bill S.

Bill S.

Thanks John, 426 Hemi stroker 588 https://www.youtube.com/watch?v=1dJdt0ZFzjU
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Harold R.

John, Thanks for the great customer service! Harold
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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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Hannu O.

Hannu O.

thank you very much from Finland!
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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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Matt G.

I just want to say thanks for all that you have done for me, because over the weekend I was the fastest R/T out there with no power-adders and still...
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David A.

David A.

Thanks for everything, David
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Robert S.

Robert S.

426 Hemi Cuda
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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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Derek B.

Derek B.

Great Personalized service. Derek
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Troy K.

Troy K.

Thanks for all your great help with my Viper.
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David C.

Southeastern Performance has my vote. Thanks again!
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Sealed Power Valve Springs

Valve springs are one of the most critical and overlooked components in your engine. Use these Sealed Power valve springs to be matched to your cam and help your engine to reach its full potential. It does absolutely no good to install a cam that will perform up to 7,000 rpm if you do not have the correct springs. Use the only valve springs that will give the recommended spring pressure with the valve both on the seat and at maximum lift. Sealed Power valve springs are offered in single and dual styles to meet their cam requirements.



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