Dino I actually posted in another thread, the cam split is 87-95, 96-98 and then 99+.Cheromaniac wrote:Since you're using a '91 block, you can use a stock '91-'98 cam. A stock cam from '99+ won't bolt into the block.
The 87-95 is the single pattern 96-98 being the dual pattern & 99+ cam being dual pattern but slightly different specs & different mounting for the timing set. The 96-98 specs are posted on your tech specs page on jeep4.0performance and the 99+ are posted in the calculator on the website here. They are very similar, only slightly variations.
Hey Zorm idk if you have checked or not, but instead of using the old lifters and cam, why not grab a Comp 68-200-4 from summitracing. Cost is about 190 bucks for the cam and lifters, and it can be run on stock valve springs. The comp 201 isn't recommended for stock valve springs as the lift is more than .430" @ .050", but I've been running it for 102K without issue.
I litteraly just posted this, but the 96-98 dual pattern cam vs the comp 200 is virtually the same. The comp 200 offers more low end and mid range & the same up top. Seems like a good idea to help pull around that extra weight
The comp 201 is about the same, better low end and mid range than the stock cam, but also more up top.
Also reading now you have the 87-95 style cam which is a single pattern, and doesn't offer much low end at all. The cam kind of wakes up around 3200+. Deffinetly switch to a dual pattern, you'll love the punch you get from it.