Good camshaft for my build and a few questions

[casey753815]

Hello, currently looking for some advice on my 1993 4.0 build. It has been sent to the machine shop and was bored +.030. aside from this I want it to remain mostly stock aside from a camshaft upgrade. Not seeking crazy power or funny idle sounds, just wanting a little bit more pep and willing to trade a few MPG's, but not wanting to sacrifice reliability Any recommendations? Originally wanted to go with this cam

https://crower.com/camshafts/beast-cams/amc-290-401-baja-beast-hydraulic-camshaft.html

However, after some reading it would seem that it would call for different valve springs, computer upgrades, and possibly forged pistons and the such. Does anybody have any recommendations for a good cam that won't require an extra $2500 in parts and a new computer system? And if not, can somebody give me recommendations on parts to go with the Baja beast cam?

Almost feels like I'm better off building a bone stock engine and upgrading exteriors such as water pump, radiator, headers, intake, exhaust, and would love to hear it if I'm correct.

 

[75SV1]

That cam if for an AMC V-8.
Try this one:

AMC Hydraulic Flat Tappet Camshaft

AMC - 199, 232, 234 (4.0L) & 258 (4.2L)Performance level 1 - Baja Beast - Better than stock, big mid-range power.INT/EXH - Dur @ .050” Lift: 194°/202° RR: 1.6/1.6 Gross Lift: .432”/.453” LSA: 112° RPM: 700 to 3800

crower.com

Comp Cam makes some for the 4.0L. I used Schaffer to grind a cam for me. I used their specs. At the time, there were no performance cams for the 99+ 4.0L. .450 lift is suppose to be the limit for stock springs.
The main issue with cam upgrades is what lift you want vs spring pressure. From memory the 91-95 HO springs have a bit higher seat pressure, than the 96-06. I was recommended and bought some Perfect Circle springs from Bishop-Buel Racing. The top had some slop in the fit with the stock retainers. Worked well with Chevy SB retainers. I used Melling '95 4.0L springs on a head I did. They rate them from 81-89 lbs @ 1.640. You might get some had measure them. See if you can weed out the highest ones. Also if the builder can shim them up.
Another thing to try, is to use a lighter retainer on the intake valve. No, I haven't tried it yet. So, titanium or one of the super steel ones.
Comp Cam make a 4.0L camshaft .465 lift. Has good specs as to idled and power range. Might be worth a try, if you can get the spring pressure to 90 ft @ 1.640.
Also, you might gain a few MPG. The stock cam is retarded a few degrees for emissions. I think most after market cams are at neutral.

Also Clegg:

NSR Jeep 4.0L Stage 1 Performance Camshaft Kit (CE-J4-CAM1) Fits 1987-2006

Jeep 4.0 Camshaft Kit Stage 1 Performance

www.cleggengine.com

I'd prefer a split lift lobe though. See the Stage 1.5. Still stock springs.