Hi Torque Starter question

[gearbox]

Scored a set of Header bolts that works perfectly, didn't even have to remove the adaptor to fit them on. The longest bolt they had was 7/8" which is a bit short, but Loctite Blue should work nicely. I should be able to use a spanner to tighten them if the Allen doesn't fit, so everything is now back on track. Thanks for the help, Allan