Thanks for the offer NormK. I appreciate it but its a bit of a hike for a handful of bolts true?
And Max, you are a top bloke. Thanks for posting those files. Saves me time and mucking around. Just got a quick one for ya. Lets say i have perfectly good head bolts, perfect length and thread. 5/16" UNC 18. Now if the threads on the block are damaged and worn, and the original size is 5/16", I'm assuming I'm gonna need to tap the next size up and thats a 3/8 and she looks alot bigger.....
