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It really didnt look any different. Sometimes Ford revises part numbers for reasons othrr than changes in actual design, so im not sure whether the number changed because the actual design changed. To be fair I havent seen a 2.3L head gasket with the cross drilled block actually fail since...

Yes I went with the OE gasket, which the part number has been superseded to an A from a B. When I spoke with Mountune about their "upgraded" 2.3L gasket, their customer service was lackluster and they were rather unhelpful, so I didnt feel confident making that switch.

Yes, sir!

Well, it turns out the issue was carbon. Although the valves were relatively clean, there was a peice of carbon that burned to the valve and also the valve seat causing it to hang open. A new cylinder head and some ARP Studs later, and shes good as new.

Head has been replaced and shes good as new. The ARP Studs fit perfectly 👌 now its time to turn it up? 🤣

Yeah unfortunately they can't confirm that they are a direct fit. As fas as they know the 2.3L isnt redesigned completely for the Bronco (which we know) so they should fit. The studs appear to be correct length and everything else is identical. Ill be the test mule, as I have a set on the...

Not sure. Hoping to get some answers when I tear it down this weekend. Its possible that its an improperly set valve clearance that caused the valve to burn. Also, could just be a defective valve or seat.

Basically zero.

Well obviously I am going to call them. But real world knowledge of people who build and modify 2.3L engines would be even better than someone in a call center that is just trying to sell me a product 🤔

Having to replace the cylinder head on my 2022 2.3 with 50k miles due to a burnt intake valve. Ive found some Mustang Forums using ARP 151-4301 2000 series Studs and some upgraded head gasket designs. ARP lists these studs as 2.3L Ecoboost replacement, however Ford parts manual shows different...

Well, figured it out. Cylinder 1 has a burnt intake valve. Cylinder head time! Anyone know if the ARP stud kit 151-4301 is compatible with the bronco? Its listed on ARP site for 2.3 Ecoboost but doesn't mention Bronco. They are the 2000 Series good to 220k tensile strength.

Gets this every 15k with the induction service since new

I have access to FDRS

MAP V and fuel trims are within normal. That was my first thought. Intake was just off and it has new manifold and throttle body gaskets.

Yes sir OE plugs. I run 87 but always use top tier. It does it AC on or off. Its weird because my wife's 4 door 2.3 with 75k doesnt do it. It doesnt pick up a misfire on misfire monitor, but you can feel the roughness and see it dip around -1 on cylinder accel pids. 500 miles ago I did put new...

I was thinking the same, however my wife has a 2022 4 door 2.3 auto trans with 78k and hers doesnt do it.....so I wasn't sure if the manual trans made the difference in roughness...

I have a 2022 2 Door 2.3L Manual and I noticed sitting in my bronco during warm up the other day that when the engine comes down off high idle during a cold start (1200-800 RPM) that the engine sounds/feels a bit rough. Im not sure if I've never noticed this before, or if something is starting...

To my knowledge and our Field Service Engineer the AB is the most current updated versions. Will there be an AC? AD? AE? They could update this 10 times and not fix it. Who knows. I'm used to Ford doing things this way unfortunately 🤣

I'll update and say that after about 500 miles my brand new AB transmission was grinding yesterday around 30°. 🤷‍♂️

I hope not. I don't want to do it again. Sucks enough having to do it once