Beating on your high mileage stock Hemi

How many on here run there higher mileage Hemi's down the 1/4 mile? Lets here the stories? How many miles on the old girl and what abuse have you given her?

unfortunately no tracks around here but I have torn apart a bunch of these engines and unless they never got oil changes or were over heated they look nearly new even with 300,000 miles on them. My own 2011 the cam went bad when a roller lifter quit rolling and with 300,000 miles the bearings looked totally new and the bores were very nice with just a little polishing near the top of ring travel.

I bought a 2005 Ram 1500 with a blown 5.7, did alot of research online to find out the 2003-2009 Hemi factory valve springs were weak, recommended replacing them in higher mileage engines before they drop a valve like this 05 did, I went and bought a reman long block with aftermarket springs,
runs, sounds great with the shorty headers!

While it may be true, I have never heard of the valve seats coming out of the early G3 Hemi heads because of weak valve springs. I have seen it blamed on overheating.

I hope that is true because my 2007 Magnum R/T has 173,000 miles. If it ever overheats I will probably be rebuilding it soon after.

Were the valve seats all intact on your engine? If so this may be a different problem. However if it is I would say it is not wide spread.

Yes they were,bought the truck from a young kid so who knows what kind of abuse/ overheating maybe it went thru, im new to the gen 3 hemi engines, just learning any weak points myself reading forums, other peoples issues with them,their our new wave of hi performance power plants for sure,

My 174k ram had a couple spun bearings and a couple bad lifters... no issue with the seats on it and was rebuilt with just new springs and still good. I don't know if I'd want to beat on a high mileage one too much as most I have took apart had spun bearings or were about too by the time I pulled it apart.

A guy I work with drives over 1-1/2 hours back & forth to work & has over 389,000 he just told me yesterday on his 2006 Magnum SRT8 6.1L that is still mostly all original with the exception of normal wear & tear items like brakes, tires, belts, battery etc. The Main drive line is all untouched.

I haven't raced it in several years, but my 2004 Ram 2500 4wd with a 5.7 Hemi with 299k miles on it was doing fine with no issues, that was until I loaned it to the father in law.

It came home on a roll back and after finally getting time to check it out and it had broken a valve spring on the number 8 cylinder and subsequently dropped a valve.

I now have to decide what to do with it.

Snk-Eyz,

I will gladly take it off your hands for the price of shipping to Michigan.

Hahahahah

But seriously I will

I call 2nd dibbs

I'm sure that you would.

I'll either find a used 5.7 Hemi to put in it or part it out or sell it as is.

let us know what your going to do.

New guy at work has an 05 Daytona Ram, 265k on it and about 1100 runs on it since new, I thought he was joking when he said over 1100 runs then I stopped laughing when he brought in his shoe box of time slips.
Truck is still stock bottom end except, has a comp cams 268 and a 6.1 timing set and oil pump.
Heads are ported with 2.08 and 1.60 valves LT headers and 4.56 gears in a SRT Dana 60, car intake and car engine front cover,87 MM BBk Throtle body, has a518 non Lock trans swapped in it. truck runs good for what it is.


I know of 2 more that are over 200k and see regular track duty, one is an 06 Magnum , with a procharger on it, runs 8lbs of boost for almost 8 years now. the other is a 03 Ram all stock, trans motor rear , it has 225k last I talked to him. runs mid 14s with a little tune(03s are hard to tune) and he's happy as a Mustang kid is who hasn't wrecked or broke those dam oil pump gears.

Depending on how bad that valve tore up that cylinder , sleeveing these 5.7s is not that much of an issue. I have few blocks here that need sleeves.

If it does need a sleeve let me know, I'm always looking for these pre Eagle blocks no matter the condition