valve lift stock eagle heads

[greatape]

could someone please tell me how much lift the stock beehive valve springs on a 09 5.7 Hemi are good for.

Thanks

[james1595]

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

[FLandy]

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.

[LilSick]

could someone please tell me how much lift the stock beehive valve springs on a 09 5.7 Hemi are good for

Thanks

How much lift they are good for is dependent upon how close to coil bind are you willing to go

Not all heads have the exact exact same installed height

Have you measured yours?

[PurpleRam]

How much lift they are good for is dependent upon how close to coil bind are you willing to go

Not all heads have the exact exact same installed height Quality control wasn't what it was supposed to be

Have you measured yours?

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