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A A "NEW" Mopar SB Cylinder Head
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  |_ Camshaft Thrust Buttons->
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  |_ Dodge SRT4 Turbo->
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  |_ HEMI 5.7L, 6.1L, 6.4L Components->
  |_ Intake Manifolds->
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Customers

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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Gary H.

Gary H.

John, 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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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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Robert S.

Robert S.

Great parts and service! Robert
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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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Robert S.

Robert S.

426 Hemi Cuda
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Jim W.

Jim W.

Thanks for the fast parts service and Great cylinder head porting! Jim
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Kayden G.

Well John, your service is amazing if you want my opinion. Never had better from any company I've ordered from. Thanks, Kayden
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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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Clay B.

Clay B.

Thanks for everything !
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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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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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Dan B.

Dan B.

Dakota R/T 408, Thanks for everything! Dan https://www.youtube.com/watch?v=wZekmXKYXA4
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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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Craig W.

Craig W.

Thanks John, So far 8 races and 8 top Five!!
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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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Bob F.

Bob F.

Plymouth 426 Hemi
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David P.

David P.

Thanks for the brake lines !
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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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Benny C.

Benny C.

Thanks for the Great Mopar Service !
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Billy W.

Billy W.

Dakota R/T 408
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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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David A.

David A.

Thanks for everything, David
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Ricky H.

Ricky H.

Thanks for everything John. The headers are great !
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Koffel's Place

The Original B1 head features raised ports that offer huge flow increases over cast iron head. The 2.300 inch intake valves and the 1.780 exhaust valves have been repositioned to the bore center-line for greater performance gain. The raised exhaust ports will accept a stock header flange. This head also features raised and angled spark plug locations for more complete combustion and deck thickness that provide extra strength. The head can be flat milled to 47 cc or angle milled to 37cc. Contact us for your specific application and pricing.



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