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3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
So you are saying to use the 6.1 exhaust spring to replace both the 5.7 intake and exhaust springs. And also use the 6.1 exhaust push rod for both intake and exhaust on the 5.7. Is that correct?
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Yes 6.1 EXHAUST SPRINGS only, the 6.1 push rods are the cheap way to get the strength he purchased manley pushrods which are more than likly one piece forged anyhow just alot more expensive.
Cool, thanks guys. I got the Manley Pushrods, the Hemi 5.7L 5/16 (6.600 intake and 7.825 exhaust are the lengths) They're much beefier than the stock ones and 1-piece design.
__________________ Tim
2003 1500/4x4/5.7L/40 Series/6.1 Springs/Manley Push Rods-P/T Fire & EMS POV
2004 40th Anniversary Mustang GT (Wifes)
1999 Trans Am WS6 Ram Air Pkg. / LS1 Modified
FireFighter, would you mind posting a couple of pics just for everyone's FYI of the 5.7,6.1 int pushrods w/a bic pen and 5.7, 6.1 ext pushrods w/a bic pen. so we all can get a gander of the rods sizes to pen size?
RedTruck-VA, Thats correct, when moving/changing the engine designed specs on one component, something else within that train may require upgrading and as this happens to be the OEM rods may collapse under stressful power burst.
__________________ "Any one of these three will make you feel better to what is bothering you."
Having an 03 which I spin up on occassion I am going to change out the 03 valve springs with 6.1 exhaust springs. If I need stronger push rods I might as well do them at the same time. I don't know the 5.7 valve train geometry so pls bear with me here. Are both the intake and exhaust push rods the same lenght? And I understand that the valve spring height is the same for both intake and exhaust valves on the 5.7. This should be a simple upgrade. Thanks,
oneHemi37: Yep, I sure will do that for you. Definitely a big difference between the stock 5.7's (3-piece design) vs the Manley 5.7's (forged 1-piece) I plan on doing the swap later this week/weekend or early next week...just depends on my work schedule. and...no..I haven't cammed the truck.
Red Truck: I am replacing all the stock 5.7 intake & exhaust springs with 6.1 Exhaust springs per the instruction I have received here on the forum and this thread, due to their strength. No, the int/exh lengths are different per the lengths I posted above. These are the lengths shown on the Manley label, assuming that they are the same as the stock 5.7's. As oneHemi stated, if I were to install the 6.1 rods, I'd be in trouble due to them being longer than the 5.7. The 6.1's are slightly longer, I posted their lengths last page back.
__________________ Tim
2003 1500/4x4/5.7L/40 Series/6.1 Springs/Manley Push Rods-P/T Fire & EMS POV
2004 40th Anniversary Mustang GT (Wifes)
1999 Trans Am WS6 Ram Air Pkg. / LS1 Modified
I don't see how you can go wrong with these Manley Hemi 5.7 pushrods for the int & exh if they spec-out to be the same length as your OEM 5.7 int, exh rods.
Double check the ball ends to be the same radii, oil-way holes same size as the OEMs.
I just could not find the OEM 5.7 int, exh rod lenghts, nor the 6.1 lenghts to do any comparing.
__________________ "Any one of these three will make you feel better to what is bothering you."
FireFighter, would you mind posting a couple of pics just for everyone's FYI of the 5.7,6.1 int pushrods w/a bic pen and 5.7, 6.1 ext pushrods w/a bic pen. so we all can get a gander of the rods sizes to pen size?
oneHEMI: I am so sorry, I forgot all about your request. I took the pic's for you (minus the Bic pen). The old and new rods are lying on a standard shop towel, so you can get an idea of their size. I hope this helps and again, sorry for the delay.
__________________ Tim
2003 1500/4x4/5.7L/40 Series/6.1 Springs/Manley Push Rods-P/T Fire & EMS POV
2004 40th Anniversary Mustang GT (Wifes)
1999 Trans Am WS6 Ram Air Pkg. / LS1 Modified
PI_greg, TOTM 2010, 03 Fogottens #2, 08 SLT Rims, 285/50-20, SLT Leather interior, Edge TC, DTT w/4:10, Mcgaughy’s 2/4.5 drop, Caltracs, AI gage, eFan, HD trans cooler, 180 stat, Fastman TB, K&N 77 CAI, TMR, Pwr Wire, Trans wire, Mag duals
Tim
