Drag frames lasting a few race days? Thats a little far fetched. I know of a few personally that have been together for 4+ years now and still going and hold unlimited record runnin all motor. Guees what there alot bigger than 1000cc twins.
I have emailed matoon before and blantly stated that it would be a 10g minimum and doesnt really have any time for b/c there is no market for it. The only viable option for billet cases for a single would be to run a set of caracal cases and have one side of the cases chopped off. Its been done before.
Or run a twin liger set up. Than add the billet crank, rods, tranny, primary, basket for 10 plate set up, bearing support, pipes, reeds, intakes, carbs with huge bowls, ignition. That's probably 30g's.
Just get a arctic cat m1000 and get cutlers big bore(liger) and be way above 1000cc and 200hp.