What thread for mac 67 head bolts.

[Tofastformellow]

Gday , i have a mac 67 blue head and i have around 3 broken head studs in it. YAY...

i have extracted the head studs after a lot of time ... now what threads are these things supposed to be ??

they are 3/4 inch long , by????

would SSteel be ok for a replacement.

Thanks for your help

Jason

 

[tnrcboatracer]

They are 6-32 x 3/4". I have complete 101ksi SS SHCS kits available for all of the MAC engines. The 60/84 set includes 16 screws for every fastener in the engine, including the carb spray bar screws and washers. PM me if you are interested in a set.