MomoJeep
Basic User
- City
- Seattle
- State
- WA
The re-builder who looked at it says he can't put new valves in because that's already been done once, and it's now too close to the water jackets.
New engine recommendations
- Thread starter MomoJeep
- Start date
The re-builder who looked at it says he can't put new valves in because that's already been done once, and it's now too close to the water jackets.
MomoJeep
Basic User
- City
- Seattle
- State
- WA
I'm curious, with the exhaust valves pounded so badly, but the intake seemingly more ok, what does this indicate?
I get that the exhaust valves get all the heat. But it would seem that if there was a set-up / geometry / cam issue, that would have affected all valves equally, not just the exhaust valves.
Possibilities:
(1) Engine running too lean?
(2) There's a possibility these exhaust valves were oversized and maybe there was an installation issue in the first place.
(3) I simply overloaded the engine, hauling a heavy load & driving all day on long hot summer days over mountains, etc.
What else?
I get that the exhaust valves get all the heat. But it would seem that if there was a set-up / geometry / cam issue, that would have affected all valves equally, not just the exhaust valves.
Possibilities:
(1) Engine running too lean?
(2) There's a possibility these exhaust valves were oversized and maybe there was an installation issue in the first place.
(3) I simply overloaded the engine, hauling a heavy load & driving all day on long hot summer days over mountains, etc.
What else?
Last edited:
93_Fummins
CJ-8 Member
- City
- Edmond
- State
- OK
I'm of the opinion that whoever did the valves on the head prior just did a poor job and you are possibly chasing ghosts at this point.
- City
- Olathe
- State
- KS
MomoJeep
Basic User
- City
- Seattle
- State
- WA
In addition to new intake manifold, and new exhaust system, Would this require:
- changing engine mounts?
- New computer?
- New wiring?
- New radiator
- New bellhousing/adapter
- Anything else?
- City
- Olathe
- State
- KS
I'm sure there is someone on board that has done a 350 or 360 swap that can answer better than me.
You are correct that it would take Ex manifolds.
It already has intake manifolds & FI tech fuel injection mounted.
It needs an external balance flywheel. It says it mounts up to a 727; so I THINK it would bolt up in a CJ application?
It needs fuel injection style high pressure fuel pump system (you may already have if you were running FI on the 4.0).
Says it needs an ignitiion box....
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