could someone please tell me how much lift the stock beehive valve springs on a 09 5.7 Hemi are good for.
Thanks
could someone please tell me how much lift the stock beehive valve springs on a 09 5.7 Hemi are good for.
Thanks
Either .500 or .525 i believe. If you are planning on upgrading internals, just buy a set of mopar .625 lift springs. They are very cheap
2019 challenger rt
k&N cold air intake
92mm hellcat throttlebody
ported 392 intake manifold
ported eagle heads
Cammotion custom 222/234 cam
stainless works long tube headers and catless mid pipes
3' catback with h-pipe & pypes violator mufflers
e-85 tuned
3.70 lsd
In about 2011 Chrysler updated the spring/spacer package on the Eagle heads. When I did the cam swap, I used the updated springs/spacers, as well as new updated (about 2016) lifters.
Though the cam/lifters were not ticking at 170k, two lobes/lifters were very warn. It was only a matter of time. If you are doing a cam swap. I wouild recommend using new updated lifters and new whatever springs your cam requires.
2010 Jeep Grand Cherokee / 5.7 Eagle
CAI - OE AC box, K&N element, SRT8 Air Duct
Valvetrain - AMS 206/222 .520 lift cam, Non-MDS lifters
Exhaust - SRT8 manifolds & mid-pipes, Flowmaster 50 Big Block muffler
Other - 180 T-stat, Catch Can
you're safe with .550, after that it's a crap shoot , we've used OEM Eagle springs on 6.4(into 5.7s) cam swaps, none of them worked right with the OEM eagle springs. on the Intake side some coil bind, some we could get a .006 feller gauge in at full lift, Exhaust side was fine.
FWIW All of Summits Hemi cams under .540 Lift can use the OEM Eagle spring , and don't experience valve float under7k RPMs
04 RAMGTX........ 8.91@151mph 392Ci G3Hemi 3600lbs 2.6HP/Ci Naturally Aspirated
05 RAMGTxtreme 9:45@142mph 426Ci G3Hemi 4000lbs 2.2HP/Ci Naturally Aspirated
09 Challenger Drag Pak 8.88@150mph 376Ci G3hemi 3650lbs 2.6HP/Ci Naturally Aspirated
G3 Hemi Videos
https://www.youtube.com/channel/UClS...5mXdDR5sOxs10Q