I'm rebuilding my 5.9 magnum. I was wondering what are some recomended upgrades for these motors? Mostly for reliablity and maybe a little performance too.

Thanks
Ben

 

depending on your budget there's many ways you can go. you can do a 400 plus small block with changing the crankshaft. cylinder heads are a great idea, you can go cast iron or aluminum heads. between buying and crank or heads those are your biggest items as far as cost goes. keep in mind your transmission and tuning.

 

Well i dont plan on spending that much. Im really more concerned about mods that will be preventative maintance kinda. I plan on headers and a bigger TB, but thats about it as far as straight performance goes.

 

1.7 roller rockers.. Get some new clearwater heads.. new timing chain... and do the plenum fix when motor is out.. After all that get a SCT tuner and you will have yourself a good reliable motor and you will be pleased with the performance...

All of that stuff can be done for right around 1k

 

Be sure to get the Clearwater HD heads... Plenum mod, cat delete, and dual exhaust will be your best bet. Also don't get aluminum pistons, that way you can use a higher voltage ignition system without burning a hole through your pistons.

 

Any links to the heads your talking about? and what kind of horsepower increase is that looking at?

 

Just look up odessa or clearwater.. they are the same company.. Not going to see much of a HP increase but they are better than factory.

 

I disagree... But second thought, I agree...

 

Elaborate?

 

What rockers do you suggest?