Has anyone Swapped a Ram 1500 3.7L intake Manifold into a Liberty? I was looking at one the other day and the Runners are visually a few inches longer on the truck than what we got on our liberties,The throttle body also looks bigger but I didn't have time to measure it. I would think the longer runners would create a bit more torque but I have been wrong before.

The longer the runners the more low end you should theoretically have. The only way to see is to try and install it and see if there is a gain. Sadly the adaptive PCM will just counter the modification so a tune is needed to keep any gains.

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Fran:2002 Jeep Grand Cherokee Limited 4.7 quadra drive. 31in General Grabber AT2, OME HD, bilstein, IRO sway links, addco rear sway. Kolak 3in cat back flowmaster SUV 50, magnaflow 3in cat, airaid JR kit, ram air, P.I.E. aux adapter, surco 45x50, husky liners.http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=6&t=65276&p=719908#p719908

^ agreed... the only way to get around this is to flash your PCM....

All of the powertech 3.7's are rated at 210 hp @ 5200 rpm and 235 lb/ft @ 4000 rpm regardless of application. It would be a pretty pointless swap.

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2006 Sport 4X4, Deep Beryl Green, NSG370, NV241J, Lifted with OME 927/948 and Bilstein, JBA 4.5 UCA's, Custom 3" Rear Y-Link Extension and Swaybar Relocation, 265/75-16 Toyo Open Country AT2 tires, Black Plastidipped bumpers, flares, and doors, Pioneer speakers, Alpine head unit, 1200w Phoenix Gold Amp, 12" Dayton Reference sub.

without investing in a B&G run and tune it would be fairly pointless

i'm all for tweaking - however i doubt the benefits of the swap unless all things are equal between the intakes other than length - they did a nice job when they designed our intakes

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03 Renegade (Black)
177k miles 3.7L gas - 45RFE
Command Trac / 4.10s
Lift: ft. 790+ rr. JBA4+
The last of the TrailReady Front&Rear Bumpers and TR Rock Rails
Jarhead Offroad light covers
31x10.5R15 RedLetter Grabbers on Blackrock Dunes
L.O.S.T #KD098632