The longevity of a 5.7 Hemi engine ranges from 250,000 to 300,000 miles. Once you reach this number, the engine performance declines significantly. It will eventually die. Nonetheless, the 5.7 Hemi engine may last less than 250,000 miles. It depends on the extent of usage and the environmental conditions. Now, before determining how many camshafts in a 5.7 Hemi, we need to know about the SOHC or DOHC of an engine and the engine version. Let’s look at the number of camshafts used in the 5.7L V8 Hemi. If it has a Dual Overhead Camshaft setup, there will be four camshafts, or if it’s a Single Overhead Camshaft, it will have two camshafts. Ram Year. 2013. Engine. 4.7. Only Ford and GM are playing with direct injection,Chrysler has said they'll wait on direct injection. I don't think Chryco wants to spend the money yet to tool up new heads that'll handle direct injection. It takes a re-designed head with a totally differant quench area. Depending on the model, it made between 420–425 horsepower and 420 lb-ft of torque, and could go from zero to 60 mph in 5 seconds with a 13.5 second ¼ mile @108 mph. Powerful out of the box, the 6.1 HEMI can also be easily modified to make more than 1,000 horsepower with the right blower (or turbocharger). The 392 cam is best coupled with the 392 intake with SRV @4800 rpms, and good exhaust comparable to the 392 for best perofrmance. 2011 Dodge Charger Ex GSP NightHawks Pursuit. 6.4 Intake w/active Runners. Best Time in 1/8 mile 8.782 @ 80.73mph 2.020 60ft. Like. Hey all! Havent been here in a while. Picked up a decent deal on a 2020 Ram Hemi. I wanted to see what y'alls TOP recommendation for the 5.7. Aka best filter for this truck. Money not an issue and the duties for this truck will include a lot of stop and go driving - like 90% (I live in the D.C area) with some occasional towing. As this is written, there are four cylinder head designs. In 2003, the 345-inch 5.7 Hemi received the first, followed in 2005 by the 6.1 hemi design. After 2009, the 5.7 Hemi Eagle and 6.4 Hemi The normal oil pressure for the Dodge Ram 1500 5 7 hemi is 25 to 65 psi. Your oil needs to be changed eventually. Every 5,000 to 10,000 miles is a good rule of thumb. If You don't change it, there will be problems with the engine. Having high quality oil is essential for the engine to run smoothly. You will run into issues with this fluid at some point. A normal problem is a nasty burning 5.7 Hemi Reliability. I've had my '04 for over 10 years and I love the new models but want to know how reliable they are. My car was a rock, never any problems, just reliable for 144k miles. I know someone moving over seas and can't take their car and offering me a deal I'd be an idiot to not consider. That is a good deal. I looked at a 4door 4x4 hemi and 117k on the clock. Dealer wanted 15k for it. I flipped him the bird and left. Engine Hemi 5.7. pjtV.