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  |_ Camshaft Thrust Buttons->
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  |_ HEMI 5.7L, 6.1L, 6.4L Components->
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Customers

Steven

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

James G.

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

I've bought parts and dealt with vendors in my job every day for the last 15 years. I have never dealt with a vendor as helpful and punctual as 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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David A.

David A.

Thanks for everything, David
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Taylor M.

Taylor M.

Thanks a lot John !
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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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David P.

David P.

Thanks for the brake lines !
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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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Troy K.

Troy K.

Thanks for all your great help with my Viper.
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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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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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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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Gary H.

Gary H.

John, Thanks a lot !
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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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Buyer

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

Craig W.

Thanks John, So far 8 races and 8 top Five!!
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Chris B.

Chris B. won the late model feature easily Texas Motor Speedway.
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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.

Hi John! Thanks again for the great service! Marko T. Finland
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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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Ricky R.

Ricky R.

1937 Chevy Legends Race Car, Thanks for everything!
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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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Dart " Big M " Engine Blocks

Dart engineered the Big M to be the strongest, most reliable, and easiest to build big-block on the market. We redesigned the lubrication system to create a true “priority main” system that oils all of the main bearings before the lifters for extra reliability. Our stepped main oil gallery (9/16“ to 1/2“ to 7/16“) increases the flow of oil to the crank at high rpm, and our front oil crossover eliminates internal oil leaks around the distributor shaft. The result: more oil at the bearings and pushrods where it’s needed, and less power-robbing crankcase windage. We added two slotted head stud bosses on both sides of the lifter valley so you can use studs instead of hard-to-install bolts to take the place of the “missing” head bolts.
Dart machines Big M blocks in-house on precision CNC equipment to ensure quality and to eliminate the need for expensive “blueprinting.”

Specs

Material

Deck Height

Bore Diameter

Main Bearings

Camshaft

Main Caps

Oil Pan

Big M

Cast Iron

9.800"  10.200"

4.200" 4.500"

BBC

Standard BBC

Nodular Iron or Steel 4 - Bolt

Standard BBC with Dual Bolt Pattern




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