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Striker Viper heads Return
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Tech Help
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Valvetrain Components->
  |_ 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

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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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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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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Ken L.

John, Thanks for all your help. I wish I had known about you before I ordered the rest of my stuff! Thanks, Ken
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Rob D.

John is a real awesome guy. i couldn't thank u enough for all the help over 7-8 years.
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Carl E.

Carl E.

Dodge SRT-10 Viper
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Don S.

John, I can't emphasize this enough, but without the help you're getting me I could not have afforded my dream engine! I literally have cringed when...
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Ricky H.

Ricky H.

Thanks for everything John. The headers are great !
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Ricky R.

Ricky R.

1937 Chevy Legends Race Car, Thanks for everything!
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Buyer

Super guy to deal with! GREAT SERVICE!! GREAT PRICE!!
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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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Toby W.

John, Thanks again so much. You're truly awesome.
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William K.

You do outstanding work man. My whole crew is ready to see your work in action ;-)
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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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Clay B.

Clay B.

Thanks for everything !
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Robert S.

Robert S.

426 Hemi Cuda
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Billy W.

Billy W.

Dakota R/T 408
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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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David A.

David A.

Thanks for everything, David
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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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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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Ossi L.

you come highly recommended to me by Finnish racers!
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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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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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Crane Valve Springs

These valve spring and retainer kits from Crane offer you an easy, cost-saving method of ensuring that your cam is matched with the correct components. The springs will help strictly stock motors by releasing some of the horsepower that the stock components are holding back. They're heat-treated and can be installed in most cylinder heads with no machining.

Crane offers many different dual springs designed to suit a wide variety of applications. They are available in popular diameters for hydraulic, mechanical, and roller cams. Crane dual valve springs are magnaflux-inspected and checked for tension. Use your specific cam application for the exact valve spring.




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