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Product List

A New Product->
Adjustable PCV Valve Stops Leaks
Air Conditioning Custom Kits->
Automotive and Marine Covers
Brakes->
Carburetor Modifications
Carburetors->
Chrome Accessories->
Chute Kits->
Clutches->
Cold Air Kits->
Custom Hoods->
Custom Parts Development->
Cylinder Head Porting->
Electric Cooling Fans->
Electronics and Delay Boxes->
Engine Blocks
Engine Parts->
  |_ Camshaft Thrust Buttons->
  |_ Camshafts->
  |_ Cylinder Heads->
  |_ Dodge SRT4 Turbo->
  |_ Engine Components->
  |_ Engine Girdles->
  |_ HEMI 5.7L, 6.1L, 6.4L Components->
    |_ 5.7 / 6.1L Hemi Gasket Sets->
    |_ 5.7 / 6.1 Hemi Alternator Fan
    |_ 5.7 / 6.1 Hemi Roller Rockers
    |_ 5.7 / 6.1 HEMI Turbo Kits
    |_ 5.7 / 6.1L Billet Accessories
    |_ 5.7 / 6.1L Hemi Axle Hub Kit
    |_ 5.7 / 6.1L Hemi Belts
    |_ 5.7 / 6.1L Hemi Bolts and Studs
    |_ 5.7 / 6.1L Hemi Camshafts
    |_ 5.7 / 6.1L Hemi Cold Air Kits
    |_ 5.7 / 6.1L Hemi Connecting Rods
    |_ 5.7 / 6.1L Hemi Converters->
    |_ 5.7 / 6.1L Hemi Crank Dampers
    |_ 5.7 / 6.1L Hemi Crankshafts
    |_ 5.7 / 6.1L HEMI Engine Bearings
    |_ 5.7 / 6.1L Hemi Exhaust
    |_ 5.7 / 6.1L Hemi Fuel Injectors
    |_ 5.7 / 6.1L Hemi Fuel Rails
    |_ 5.7 / 6.1L Hemi Intake Manifolds
    |_ 5.7 / 6.1L Hemi Nitrous Systems
    |_ 5.7 / 6.1L HEMI Oil Pans->
    |_ 5.7 / 6.1L Hemi Oiling System
    |_ 5.7 / 6.1L Hemi Piston Rings
    |_ 5.7 / 6.1L Hemi Pistons
    |_ 5.7 / 6.1L Hemi Superchargers
    |_ 5.7 / 6.1L Hemi Suspension
    |_ 5.7 / 6.1L HEMI Throttle Bodies
    |_ 5.7 / 6.1L Hemi Timing Sets
    |_ 5.7 / 6.1L Hemi Transmissions
    |_ 5.7 / 6.1L HEMI Tuning
    |_ 5.7 / 6.1L Hemi Valvetrain
    |_ 5.7 6.1 6.4 Hemi Cylinder Heads
    |_ 5.7L Hemi Water Pump
    |_ 6.1L HEMI Aluminum Blocks
    |_ 6.1L Hemi Lifters
    |_ Carbon Fiber
    |_ Custom 5.7 / 6.1L Chipkiller
    |_ Custom Hemi Billet Main Caps
    |_ Custom Hemi Floor Mats
    |_ Gen 3 Hemi Oil Squirter Plug
    |_ Hemi 5.7 / 6.1L Power Packages
    |_ Hemi 5.7 and 6.1L Valve Covers
    |_ HEMI Drive Shaft Loop
    |_ Hemi Serpentine Belt Conversions
  |_ Intake Manifolds->
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

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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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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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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Ricky R.

Ricky R.

1937 Chevy Legends Race Car, Thanks for everything!
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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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Clay B.

Clay B.

Thanks for everything !
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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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Carl E.

Carl E.

Dodge SRT-10 Viper
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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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Taylor M.

Taylor M.

Thanks a lot John !
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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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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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Buyer

Super guy to deal with! GREAT SERVICE!! GREAT PRICE!!
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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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Marko T.

Marko T.

I have been building cars over 20 years and you have been the best parts dealer ever! Thanx for your friendship! -Marko, Finland
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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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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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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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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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David C.

Southeastern Performance has my vote. Thanks again!
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Robbie C.

Robbie C.

Great job all round !
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Gary H.

Gary H.

John, Thanks a lot !
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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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Ricky H.

Ricky H.

Thanks for everything John. The headers are great !
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5.7 / 6.1L Hemi Valvesprings

Valve springs are one of the most critical and overlooked components in your engine. They must be matched to your cam in order for the engine to reach its full potential. It does absolutely no good to install a cam that will perform up to 8,000 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. Our Hemi valve springs are offered in single and dual styles to meet their cam requirements.

Valve Springs, Single, 1.055 in. Outside Diameter, 313 lbs./in. Rate, 1.085 in. Coil Bind Height, Set of 16
 
Note-Fits Hemi V8 Modular 5.7L and 6.1L
 
Contact Southeast Performance for details and pricing.



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