I have the engine out to check the crank and I am going to address a few other small problems while I am at it. One is I have 3 exhaust bolt holes that need to be helicoiled. They still have threads way in but out near the header flange somebody stripped the threads. I want to have proper header bolts in all the holes so enter the helicoils. My question is, are there any pitfalls that I should watch for when drilling the holes out? ie: adjoining passages to look out for
This is a set of "X" heads that have a lot of porting done to them.
Jack
This is a set of "X" heads that have a lot of porting done to them.
Jack