70hemicuda

Ive done a ton of suspension work to the jeep and pretty much have it where i want it. Now im curious about some engine mods. Ive never really done much engine work other than new alternator, radiator, accessory stuff really. I also got neon injectors and a 62mm TB so minor performance stuff. I recently got the idea of a new cam and found one on youtube that makes the jeep sound incredible. the performance boost would also be nice too. Anyone have opinions or info on a new cam for the 4.0? not super serious, just curious and looking for info and stuff. thanks

CobraMarty

Most all new cams require different valve springs. No new cams for '99+.

Better and easier and still adds performance is adding a set of Harland Sharp 1.7:1 roller rockers. About $400 and just bolt on.

Jeepin'_Aint_EZ

If you're just looking for a cool sound then I guess put a cam in but if you're looking for performance than just regear it. You'll have a much bigger performance gain with gears than a cam.

70hemicuda

why is that for the 99+? thats strange. and yeah i know there are better options for power other than a cam. I was just curious and looking for info about it. plus like i said, they do sound awesome

CobraMarty

'99+ use a bolt on cam retaining plate and the earlier years use a pin and spring on the front of the cam to control cam walk. The nose of the 2 cams are different. They don't interchange but you can put an earlier cam with pin and spring into a late engine but not vice verse.

70hemicuda

So an older cam can be fitted to my 2000 if I switch over to the older spring and pin style?