10243880...350...95-00...2 or 4...Vortec truck, Gen.I crate motors and "ZZ4", roller cam, one piece rear seal, is the block i have, spun 1 main, needs line bore, is a 4 bolt main, just a bare block, make offer

3947041....69-70...302/350......"Right angle" casting identifier, 64cc chamber, accessory holes, good HP head, are the heads, have screw in studs and guide plates, have hardened exhaust seats, has newer valve guides, just bare heads, need valves and springs, make offer, also dates are g-16-8 and h-22-8

parts are located at 61068, pics avail upon request

thanks