Is it possible to find stock length, hardened pushrods for a stock cam 5.9L with 1.7 roller arms? If so, what is the length used and (bonus) what is the part number?

I've been searching this forum and others sites looking for replacement, hardened, pushrods to complement the cylinder head rebuild on my 5.9L Magnum. For the life of me, I cannot find a single retailer that sells hardened pushrods in the OEM length. Almost every retailer that claims to fit a 1999 Dodge 5.9 magnum has them listed at either 6.8" or well over 7"

Mancini Racing has twice sent (once overnighted after second-day shipping to the wrong address) Comp Cams "Magnum" Pushrod set 7632-16. The problem is that the measured length is 6.800" which is shorter--by almost a full 1/8"--than the ones pulled out of a 99 Ram with 175,000 miles.

My understanding is that the stock pushrod length for the 2nd generation 5.9L is 6.915". I cannot imagine the benefit of installing 6.8" pushrods into the engine, especially when there are harland sharp 1.7's just waiting to be installed.

These hardened pushrods are supposed to be "required" for my configuration (Indy Iron Heads, Harland Sharp roller arms) but what the hell, man? It's not like I swapped the cam or anything. I was told by Mancini to measure the pushrod length (and buy their measuring tools) before ordering the pushrods and then they keep sending me the wrong set and telling me by way of explanation that "that's what the computer is telling us". Aren't they Dodge experts?

Were it not Friday, and were it that I didn't live 40 miles from a NAPA, and had I known what an effing headache this is becoming I would have ordered a set of 6.9" Sealed Power pushrods and picked them up tomorrow. Or last month.

With new cylinder heads, lifters, Mopar valve covers, roller arms, fastman throttle body, SCT hemifever tuner, gibson headers, flowmaster exhaust, pulstar plugs, and magnecor wires it would be a damn shame to stick in the same pushrods that were installed 12 years ago. That's the kind of thing I'd probably think about it everytime I started it up, but at this point, I'm really close to just throwing in a new set of "OEM style" pushrods and driving the thing until it goes boom...

Sorry to rant: my truck would have been done a month ago were I not talked into rebuilding it around the pushrods (thanks Mancini!), and I've got the whole weekend to dwell on this before I get in touch with Mancini, Comp Cams, et al, so I thought I'd toss a lifeline out to more knowledgeable Dodge folks. I really would like to know what pushrods can safely be installed into this engine with new heads and roller arms.

Part numbers appreciated,
Will Bass

 

Check out his part number

This is out of the Mopar performance catalogue. 6.92 for length

HYDRAULIC ROLLER PUSHRODS P5249662 1992-02 magnum V8 and crate motor set of 16. $34.50

Link to part

http://www.moparsupercenter.com/push...pp5249662.html

 

As I understand it, hardened push rods only need to be used when using guide plates, which the HS 1.7s eliminate.

 

Beautiful catch with the mopar catalog--I've got a pdf somewhere on my laptop and will begin the search anew now that I'm not seeing red...

I talked to the Harland Sharp folks a couple of weeks ago, and for such an easy mod I've never read about people going to the "trouble" of pulling, measuring, and replacing the pushrods. But, this was a new head assembly and gasket so I figured it was the safe thing to do. Still, the guys at H/S were telling me "you're wasting your time, man..."

I guess I could see why pushrod length is more critical for adjustable roller arms, I just don't know why my retailer kept drilling it into me that I had to order a set after measuring for this drop in mod...

Greatly appreciated, I was just confused by the incredible range of pushrods marketed as replacement "Dodge Ram Magnum 360" pushrods, starting from 6.800" and going all the way to 7.500"...

Will Bass

 

You have it backwards, pushrod length is more critical for NON ajustable rockers

 

You should not need new pushrods with the HS 1.7s on a stock engine.

 

D'oh!

Of course, your're right. No need for me to even try to explain my thinking here as it was obviously incomplete.

I consider my questions answered fully, thanks!