New member here and just starting a tribute bike to my dad who raced desert district 37(Southern Califonia) in back in the 60s and 70s. Not going to hack up a classic, starting with a bare 67 tr frame that looks like a old chopper frame.I want to keep it looking like it is a race prepped bike from back 1963.
So i have been looking around at what parts to find to piece this together and was looking for some help with what works and what won't.
Looking for engine options and was wondering if a 10 bolt 650 lower end is compatible (with out machine work) with any 650 unit top end (barrels and all) Since I dont care about what year vin # I have It would make sourcing the engine cheaper and easier to find and I plan on rebuilding anyway.
I also am looking for info on what BSA fork clamps they used back then. looking at old pictures it looks like the 54 to 63 A7/A10 and I think looking at bearings for stem it would work. Thanks in advance and I will try not to ask too many dumb questions.