After having the truck for 20 years I have decided to give it a nice refresh.

So far: new paint and trim pieces, interior LED conversion, new tires, and most recently 4.56 gears front and back.

Come spring I am going to have the 5.9 motor pulled, rebuilt and stroked. As of now I don't have the specs of what he will be stroking it to or how big of cam. I do know he wants to keep it "driveable", as do I, yet give me a good bump in power. I also plan on getting it tuned by Hemifever. He seems to be one of the only tuners around who has the software and tuners to tune these old trucks.

So with that what other things would your guys recommend doing while it is pulled apart? I have read about the intake manifold kegger mod but wonder if I should just get a new intake manifold? What about the crank pulley? Transmission?

Thanks for any advice and tips to helping get the blue beast a real beast.

 

Can bump it up to 408 pretty easy, and if you really wanna get weird, can go as far as 426, I think... Of course, it ain't cheap... There are several 408 build threads here, have a look at those, and see what ya think.

If your trans is still stock, I would HIGHLY recommend going thru it as well, and beefing it up to deal with the power from the new motor. The 46 trannies weren't the best when they were new.... start running serious power to it, and it simply won't last long...... Given the average budget the stroker motors, 2500 bucks for a mega-viper doesn't seem like such a bad investment.

 

Stroking the engine is nice, however, what are your intended plans for the truck? Do you want a great towing truck or something else?

A 408 rotating assembly will run you about $1500 or more, depending upon what you want. You will also want to consider non-stock cylinder head options, so that you can get those cubes to breathe. As for intake manifold, if you can find an M1 intake, that might be helpful in lieu of the kegger.

 

I see the Viper mod costing way more than the stroker kit. I will look into getting the tranny rebuilt also. Part of it was rebuilt a few years back and only 15K miles ago. I don't put many miles on it per year. Just hard to park the Hellcat and not wanna mod the truck.

 

The guy that is building it comes highly recommended and has built several local Mopar guys motors. I'm pretty sure he is going to get the internals correct. I will look into the M1 if not should I have him do the kegger mod?

 

I just plan on keeping it around for when the weather is bad and I don't wanna drive the Hellcat and when I need to haul stuff in the bed. Don't tow much with it due to the fact it's a dog right now. What kind of gains should I see with this rebuild?

 

You are going to spend significantly more than 2500 on your rebuild...... You do NOT want to re-use the stock heads. They suck. They are crap. They are likely already cracked. You want something that breathes MUCH better for the bigger cubes. EQ monster magnums would be good. (for low end grunt, stick with the 1.92 valves) So, 1500 or so for the rotating assembly, 600 for an intake, 1000 on heads, plus things like gaskets, fluids, and various sensors you should probably replace as well. If you get out of it for under 4K, (excluding labor) I would be surprised. (gonna want headers too.....)

 

I believe I am getting new heads. I will have to check. I have headers already. So what is the Viper rebuild?

 

The mega viper is a trans. Whole thing. (although, you can buy all the parts to have installed in your current trans too... that's a bit cheaper initially.) It's rated for something like 700+ horsepower, has a host of upgraded parts, and, best of all, you can check your fluid level in PARK!!!

For most intents and purposes, it is bulletproof, and the last trans you will need.

Definitely find out what heads your build wants to use. Anything "reman" is a BIG no-no. The stock castings have thin decks, surfacing them makes it even worse. You want NEW castings, with thicker decks.

 

Ok so do you have a link for the Viper trans upgrade? Also how are these heads? Will they work? http://www.jegs.com/i/JEGS+Performan...H3jBoCRCXw_wcB