Selling some extra dual quad parts I was saving for a future project, but deciding to sell to finish other projects. - 1964 KX code 425 Nailhead Factory Dual Quad long block. STD BORE! Great cylinders w/ slight ridge- NO RUST! Should clean up at .020, definitely at .030. Clean std/std crank, good set of rods, no pistons. Comes with-good cyl head cores/good timing cover/rocker arm cores/balancer/flexplate/oil filter adapter/iron timing gears/center sump oil pan/63-earlier distributor. $SOLD Sorry, do not have valve covers, air cleaner or intake for it, but I do have.... - 1964 KX 3645s &3646s Dual Quad Carbs. The front 3645s is a really nice original, everything operates freely, just needs a kit. The rear 3646s is a rough core, but saveable. Has the impossible to find "brass nut" for the idle control on the front. I have an extra really nice 1964 3665s 425 single quad carb I will include for parts to restore the 3646s. $SOLD - 1964 ST400 Transmission Core. Not a BS dual quad one, I think it's a BR. Clean, comes with converter. $450 I do build Nailheads and can sell the 425 longblock done and built, just add your carbs/intake. I can do from stock to wow-forged pistons, roller cam/rocker, ported heads/intake. Inquire for pricing. Pics on request, PM me.