4.0 Engine parts from 2000 Cherokee

[OWEN]

Swapped an engine in a 2000 Cherokee. 106k on the engine I pulled, had a cracked head, lots of water in the oil. Had good oil pressure and no noise.

Parts left over:
Block w/ crank and pistons
Head, cracked casting with all valves and rockers
push rods
Accessory brackets
Intake manifold with all sensors, fuel rail and throttle body
Exhaust manifolds w/ O2 sensors
Coil pack/spark plug rail (whatever the fuck it is)
Accessory brackets
Misc

No altenator, ps pump or ac compressor,

Make offers

[XJtheXtremeJeep]

how much for the intake manifold?

[Ktmracer419]

Intake manifold with all sensors, fuel rail and throttle body


Make offers

60 bucks

[98xj_john]

The mani is pointless doesn't give more power

[clean4drxj]

it does when you have other add-ons and more fuel delivery

[Ktmracer419]

The mani is pointless doesn't give more power

more volume= quicker air into cylindaz

in 1999.5 they added it when they made the heads with smaller valves to trim emissions a bit to make up for the lost power.

it wouldnt be worth it to me to swap in replacing my old intake, but if im gonna have the engine out anyway, might as well.

[4bangeryj]

quote from jp mag...
"Myth:According to that great wealth of information that is never wrong, the internet says you'll get 5-30hp gain thanks to the '99-up 4.0l's swooped, equal lenght runners and larger plenum volume.

Our Thoughts: While a free flow intake manifold can deliver more power, its only going to allow as much air to flow as the cylinder head and camshaft will call for. Upping the intake runner volume too much will cause the intake charge to lose velocity, killing low-and mid-speed power and torque. On a '98-earlier engine running a stock camshaft and unported cylinder head, it's wasted effort.
Claimed Gains:5-30hp
Actua Gains: 5hp loss on Trasborg's '98 xj(project mileage master) "

[98xj_john]

Thanks eric atleast someone else reads jp

[clean4drxj]

thats about the only negative artical on that, almost everywhere i read it adds power and i am not sayin alot but it adds....

[OWEN]

These parts are being sold as replacements for OEM parts, no where does the ad say anything about performance upgrades, so kindly save the technical discussion for elsewhere. Thanks!

[OWEN]

60 bucks

That is about what I am looking to get.

[Ktmracer419]

That is about what I am looking to get.

sold

are you around on weeknights?

[OWEN]

sold

are you around on weeknights?

After this wednesday night I will be

[Ktmracer419]

pm sent

[Lycaon]

i thought you were going to sell me the manifold