Your stock pedals will work, but first you need to either get a later, like 1951 bellhousing to fit the Saginaw. Or better would be to get or make an adaptor plate to adapt your original 46 bellhousing to the Saginaw type trans.
You can contact Buffalo Ent. 360 652-7684, he makes this adaptor plate. This way you can keep the original bellhousing which supports the original pedals. Also ask Buffalo about his kit to get you to a dual master cylinder etc.
Best of luck.


It's easier to get forgiveness than permission!
1946 1/2-Ton Chevy
1953 Chevy 3/4-ton Factory Stakebed