Quote Originally Posted by JesseC View Post
Careful with this one! Even though the bolt/plug threads look the same, they are not!!! The ones in the engine block have a hexagonal head with TAPERED threading. The V-Drive plugs have a square head with standard threading(correction, I think they are just less tapered than the engine ones). I got them backwards one year and the V-Drive bolts will not go into the engine water jacket very far. All you will get is about two threads in and they stop. Be careful putting the correct ones back in, it is really simple to remember which ones go where.

Hexagonal - engine water jacket
Square - V-drive
Jesse,

Thanks for pointing that out. I thought that they are different sizes but maybe not.

Al