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Customers

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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Josh F.

Thank you sir. "I've been buying race car parts and dealing with vendors in my job every day for the last 15 years. I have never dealt with a...
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Hannu O.

Hannu O.

thank you very much from Finland!
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Derek B.

Derek B.

Great Personalized service. Derek
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Ricky H.

Ricky H.

Thanks for everything John. The headers are great !
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Bob F.

Bob F.

Plymouth 426 Hemi
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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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Bill S.

Bill S.

Thanks John, 426 Hemi stroker 588 https://www.youtube.com/watch?v=1dJdt0ZFzjU
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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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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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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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Kayden G.

Kayden G.

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

Super guy to deal with! GREAT SERVICE!! GREAT PRICE!!
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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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Robert S.

Robert S.

426 Hemi Cuda
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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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Billy W.

Billy W.

Dakota R/T 408
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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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David A.

David A.

Thanks for everything, David
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Jim W.

Jim W.

Thanks for the fast parts service and Great cylinder head porting! Jim
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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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Chris B.

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

John!! Got my Viper back together, dyno tuned. Super happy with the results of your work!! Gained 112 RWHP and 107RWTQ!!!!! More at the crank. Sounds...
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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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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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