Why do you want to know.
the 4 bolt boxes have the same bolt pattern as the 3 bolt boxes with one more bolt. And it is nice to have the extra support.
Casting numbers are a misnomer. You can have almost ANY version of the lock to lock ratios in a single casting number.
The castings have nothing to do with the innards.
If you really wanted to, you could make a 2.5 turn scout 2 box... They use the same innards.
the 4 bolt boxes have the same bolt pattern as the 3 bolt boxes with one more bolt. And it is nice to have the extra support.
Casting numbers are a misnomer. You can have almost ANY version of the lock to lock ratios in a single casting number.
The castings have nothing to do with the innards.
If you really wanted to, you could make a 2.5 turn scout 2 box... They use the same innards.