Stock cam specs

[Backwoods Rambler]

I looked around for some stock cam specs and didn't see those anywhere, so I thought I post what I found in a Diamler Chrysler Corporation 2000 Cherokee Jeep FSM

CAMSHAFT
Hydraulic Tappet
Clearance: Zero Lash

Bearing Clearance
0.025 - 0.076 mm - (0.001 - 0.003 in.)

Bearing Journal Diameter
No.1: 51.54 - 51.56 mm - (2.029 - 2.030 in.)
No.2: 51.28 - 51.31 mm - (2.019 - 2.020 in.)
No.3: 51.03 - 51.05 mm - (2.009 - 2.010 in.)
No.4: 50.78 - 50.80 mm - (1.999 - 2.000 in.)

Base Circle Runout (Max)
0.03 mm - (0.001 in.)

Camshaft Lobe Lift
Exhaust: 6.579 mm - (0.259 in.)
Intake: 6.477 mm - (0.255 in.)

Camshaft Duration
Intake 253.3°
Exhaust 259°

I hope some may find this info useful.

Sorry if it's a repost, it's tough searching this type of detailed info.

[yuppiexj]

here's the OEM and a bunch aftermarket cam specs
http://www.angelfire.com/my/fan/Jeep4.0Camshafts.htm

Here's the overall stroker page
http://www.angelfire.com/my/fan/

Thanks Dino for sharing the knowledge.

[Ruffestneckaround]

Any ideas on why a cam wouldn't work with Fuel Injection? I know about the vacuum etc...But Comp only lists one cam for FI, when none of them seem too radical...I'm looking at the 68-201-4, Anyone running it? Anyone with FI? Do you like it?

I've also read somewhere that the Comp springs don't work with the 4.0 head, is that going to be another issue?

Thanks!

[RAPTORFAN85]

I run the 68-201-4 with 1.7 roller rockers. no problems on an 01 TJ obviously with fuel injection.

[Cheromaniac]

Any ideas on why a cam wouldn't work with Fuel Injection? I know about the vacuum etc...But Comp only lists one cam for FI, when none of them seem too radical...I'm looking at the 68-201-4, Anyone running it? Anyone with FI? Do you like it?!

All of the CompCams AMC I6 cams will work with EFI.

I've also read somewhere that the Comp springs don't work with the 4.0 head

That's correct. The CompCams springs only work with the 199/232/258 heads. You'll need different springs for the 4.0 head. If you use a cam with a valve lift in the 0.45-0.50" range, I suggest you go for the Mopar Performance P5249464 springs with matching retainers and keepers.

[Ruffestneckaround]

Forgot to say thanks here, I ended up going with the 68-232-4 cam, Mopar Springs and a Cloyes Dual Roller timing set. Runs way better than stock, but the cam and lifters did come out looking visibly worn. Thanks again for the advice. Another quick question, do I need different retainers for those springs, they seem to be fine the way they are but what do I know?

[Cheromaniac]

Another quick question, do I need different retainers for those springs, they seem to be fine the way they are but what do I know?

Yes, you need the Mopar P4452032 retainers and P4529218 locks.