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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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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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Clay B.

Thanks for everything !
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Alexander F.

Alexander F.

Hey John! Roller Rockers are still in and have been great. I get almost 18mpg highway! I seriously appreciate all your help.
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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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Bruce P.

You’ve got a big fan in me. Oh yeah, the car is awesome. Runs like a raped ape. So thanks a lot !
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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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Marko T.

Marko T.

Hi John! Thanks again for the great service! Marko T. Finland
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Carl E.

Dodge SRT-10 Viper
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Ossi L.

you come highly recommended to me by Finnish racers!
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Rob D.

John is a real awesome guy. i couldn't thank u enough for all the help over 7-8 years.
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David C.

Southeastern Performance has my vote. Thanks again!
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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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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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Matt G.

I just want to say thanks for all that you have done for me, because over the weekend I was the fastest R/T out there with no power-adders and still...
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Brian A.

Brian A.

The 408 engine runs strong, put on dyno 405hp with 415tq N/A not shabby.. also was on 22" wheels with those numbers est. 500-525 @ crank. Thanks so...
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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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Felix C.

How awesome is this! This superb service is exactly on point w/what everyone have raved about. Thank you, Felix
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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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Robbie C.

Robbie C.

Great job all round !
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Steve B.

Thanks for the help with my 426 stroker.
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Ricky R.

Ricky R.

1937 Chevy Legends Race Car, Thanks for everything!
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Taylor M.

Thanks a lot John !
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Craig W.

Craig W.

Thanks John, So far 8 races and 8 top Five!!
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Home :: Custom Parts Development :: Dodge Truck :: Custom Dodge Magnum Rockers :: Our Famous Non Adjust Rockers :: Famous "No Adjust" Bolt On Magnum Roller Rockers

Our Famous Non Adjust Rockers

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Famous "No Adjust" Bolt On Magnum Roller Rockers

Outselling all other Roller Rockers for Dodge Magnum engines, We Teamed with Harland Sharp to develop this Custom Made roller rocker in 1998. Outstanding gains in performance, power, and dependability can be achieved with this Simple Bolt On rocker arm system.

They can and have been used with camshaft swaps, valve spring upgrades and revised cylinder head packages. No RPM limits or restrictions are placed on these rockers as found with other style rocker arms requiring additional costs in guideplate, hardened pushrod and valve cover upgrades.

Made for 3.9L, 5.2L , 5.9L, 408 Stroker

Fits under stock valve covers

No beating baffles or drilling valve covers required

No guideplates required

No hardened pushrods required

No lash adjustments required