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  |_ Camshaft Thrust Buttons->
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    |_ World
  |_ Dodge SRT4 Turbo->
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Customers

Ken L.

John, Thanks for all your help. I wish I had known about you before I ordered the rest of my stuff! Thanks, Ken
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Vincent G.

Thanks for all, Your shop is very highly recommended by a lot of Dakota/Durango owners up here in Canada.
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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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Ricky H.

Ricky H.

Thanks for everything John. The headers are great !
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Benny C.

Benny C.

Thanks for the Great Mopar Service !
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Robert S.

Robert S.

Great parts and service! Robert
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Henry T.

Henry T.

HEY! Everything is installed and car runs AWESOME! Thanks for everything, Thanks again. Henry 2000 Dodge Viper R/T 10
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Carl E.

Carl E.

Dodge SRT-10 Viper
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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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Clay B.

Clay B.

Thanks for everything !
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Craig W.

Craig W.

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

Steve B.

Thanks for the help with my 426 stroker.
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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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Phil S.

Phil S.

Great job creating this Dakota R/T Ground Affects Kit. Phil
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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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Marko T.

Marko T.

I have been building cars over 20 years and you have been the best parts dealer ever! Thanx for your friendship! -Marko, Finland
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Chris B.

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

Wow! Thank you for that quick and informative response. Must be why you are always recommended. Shaine
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Harold R.

John, Thanks for the great customer service! Harold
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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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Michael W.

Michael W.

After getting all the compatible stuff shes a beast! Michael
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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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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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World Products

This is the cylinder head that highly respected drag racers like Scotty Richardson employ to win NHRA National event titles and literally hundreds of thousands of dollars in high stakes ET Bracket Races. Merlin III is a true high performance head, capable of supporting in excess of 800 HP out of the box. Take your pick between 310cc or 350cc intake runners. Assemblies include premium quality Manley RaceMaster or Severe Duty valves.

World Products offers heads in both aluminum and cast iron. For street engines, We recommend cast iron heads over aluminum. "Iron is better where weight or looks are not a factor because it retains heat better than aluminum and keeps the heat in the combustion chamber, which is where you want it. Cast iron heads will typically give you about 10 to 15 more horsepower than an identical set of aluminum heads on a street engine. As for the weight difference, a pair of cast iron small block Chevy heads weighs about 30 lbs. more than a set of aluminum heads. On a big block Chevy, the weight difference is about 85 lbs., which doesn't make much difference on a crew cab truck or RV, but does in a race car. For racing, you want the lighter aluminum heads."





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