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Customers

Doug B.

Doug B.

My experience with Southeast Performance and John has been amazing. My Viper has gained another 200hp and drives fabulous. Thanks for everything!
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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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Shaine D.

Wow! Thank you for that quick and informative response. Must be why you are always recommended. Shaine
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Ricky H.

Ricky H.

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

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

Robbie C.

Great job all round !
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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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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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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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Hannu O.

Hannu O.

thank you very much from Finland!
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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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Jim W.

Jim W.

Thanks for the fast parts service and Great cylinder head porting! Jim
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Toby W.

John, Thanks again so much. You're truly awesome.
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Vincent G.

Thanks for all, Your shop is very highly recommended by a lot of Dakota/Durango owners up here in Canada.
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Troy K.

Troy K.

Thanks for all your great help with my Viper.
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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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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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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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Steve B.

Steve B.

Thanks for the help with my 426 stroker.
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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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Jason B.

Thanks John.. you have been awesome to work with and I am REALLY looking forward to driving my SRT-10 again :) Jason
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EQ Cylinder Heads

The EQ magnum and LA series cylinder heads are designed for use with their corresponding intake manifold, rocker arms, and valve covers. The EQ head features a Magnum pedestal that is large enough to enable 7/16”-14 drilling and tapping for use with stud-mounted rocker arms and guide plates. As a cast iron stock replacement head, the EQ series is designed for Magnum applications (318-360-415cid). With a host of additions and improvements over the factory originals, these heads are an easy way to get over 400 horsepower and feature 179cc intake and 67cc exhaust runners, a 62cc combustion chamber, multi-angle intake and hardened radiused exhaust valve seats, an improved valve guide design and a highly efficient water jacket to prevent engine hot spots. The EQ Cylinder Heads also come with an extra thick deck surface to enable angle milling for compression. Contact Southeast Performance for special pricing and upgrades.




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