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Customers

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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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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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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Toby W.

John, Thanks again so much. You're truly awesome.
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Ricky R.

Ricky R.

1937 Chevy Legends Race Car, Thanks for everything!
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Robert S.

Robert S.

Great parts and service! Robert
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Ricky J.

Thanks for all the info, you have been a great help and a credit to your company.
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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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Derek B.

Derek B.

Great Personalized service. Derek
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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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Kayden G.

Kayden G.

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

Ricky H.

Thanks for everything John. The headers are great !
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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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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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Steven

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

William K.

Well your service is amazing if you want my opinion. Never had better from any company I've ordered from. William K.
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Steve F.

Thank You for all your help and hookups with the parts - sounds like a lot of people appreciate it, I'm one of those people. - Steve
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Dart SHP LS 388CI Boost Ready Short Block

This short block is built for engines that are going to be running Boost! 

Using quality Dart SHP Special High Performance LS Next Pro cast iron bare blocks continue the evolution of their LS Next platform with superior strength. With full skirt designs, priority oiling systems, and other excellent features, these SHP LS Next Pro blocks are the perfect upgrades for your factory LS blocks, as well as ideal starting points for drag racers, circle track competitors, off-roaders, and high performance marine enthusiasts.

  • Bore/Stroke: 4.125" x 3.622"
  • Displacement: 388 C.I.D.
  • Crankshaft: K1 4340 Forged 3.622" Stroker Internally Balanced 58 Tooth
  • Connecting Rods: K1 4340 Forged H Beam 6.125" ARP 2000 Bolts
  • Pistons: Wiseco 2618 Forged +25cc Dished
  • Piston Rings: Wiseco GFX with Steel Top Ring and Napier 2nd Ring Set
  • Compression Ratio: 66cc= 8.8:1 / 68cc= 8.6:1 / 70cc= 8.4:1
  • Camshaft Bearings: Installed & Clocked to OEM Position
  • Freeze Plugs: Brass Installed & Sealed
  • Oil Galley Plugs: Installed & Sealed
  • Weight: 285



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