Behind the cam cover on the drivers side head. File down the raised part on the head of the bolt and you will have enough clearance to remove it.
HAMMERDOWN did his a while ago and posted pictures.
I had the machine shop leave it out when they reassembled my long block.
188k, 5/20/12 new ej257 short block, 8/20/11 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. CHECK your oil, these cars use it.
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