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A A "NEW" Mopar SB Cylinder Head
A Chrysler 426 and 440 Blocks
A Mopar "Cast Iron" Race Blocks
A Mopar News
A New Mopar B/RB Windage Tray
A New Trick Flow Mopar Head
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Engine Parts->
  |_ Camshaft Thrust Buttons->
  |_ Camshafts->
  |_ Cylinder Heads->
  |_ Dodge SRT4 Turbo->
  |_ Engine Components->
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      |_ Brodix Engine Blocks
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      |_ Indy Max Mopar Engine Blocks
      |_ Koffel's Place Engine Blocks
      |_ Mopar "Cast Iron" Race Blocks
      |_ Mopar Performance Engine Blocks
      |_ R3 Engine Blocks
      |_ World Engine Blocks
    |_ Engine Rotating Assemblies->
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    |_ Pistons->
    |_ Pushrods->
    |_ Timing Chain sets->
  |_ Engine Girdles->
  |_ HEMI 5.7L, 6.1L, 6.4L Components->
  |_ Intake Manifolds->
Engines->
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Viper
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Customers

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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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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James G.

James G.

5.80 in 1/4 mile @ 244 mph & 3.76 @ 197 in the 1/8 mile
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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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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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Bob F.

Bob F.

Plymouth 426 Hemi
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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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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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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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Jim W.

Jim W.

Thanks for the fast parts service and Great cylinder head porting! Jim
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Buyer

Super guy to deal with! GREAT SERVICE!! GREAT PRICE!!
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Ricky H.

Ricky H.

Thanks for everything John. The headers are great !
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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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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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Derek B.

Derek B.

Great Personalized service. Derek
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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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Taylor M.

Taylor M.

Thanks a lot John !
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Robert S.

Robert S.

426 Hemi Cuda
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Steve B.

Steve B.

Thanks for the help with my 426 stroker.
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Craig W.

Craig W.

Thanks John, So far 8 races and 8 top Five!!
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Troy K.

Troy K.

Dodge Viper
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Ricky R.

Ricky R.

1937 Chevy Legends Race Car, Thanks for everything!
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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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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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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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Koffel's Place 440 Engine Blocks

The specs on the K-P 440 Mopar block are:
High nickel content in casting material.
Increased material in cylinder walls; can bore to 4.600”
Reinforced main webbing.
Revised water jacket allows stroke to 5.00” + .250” raised cam available.
Steel billet 4-bolt main caps on all five bearings.
Screw-in freeze plugs. (That ends having one blow out at a bad time!)
Priority main oiling system. Longer bearing life.
Revised lifter galley area, engine builder can change lifter bore position.
Increased deck thickness, improved head gasket sealing, allows for milling
ARP main studs and 7/16 cross bolts on main caps
Accepts all standard 440 items: cam drives, water pump, oil pump, etc.
Available in 4.310 bore and 4.490 bore.


The only thing that you and your engine builder will need to do is to put the toque-plate on, final bore and hone the cylinders to fit your pistons. The blocks have been decked and align-honed with CNC equipment.


Contact Southeast Performance for availability and pricing.



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