block number 3999290 = 1972 402 frt. letter code CTB i did not find that in my books. 402 will need boring as it has surface rust in all 8 holes, crank is same condition and it is a cast crank, set of truck rods there a little stronger on the bottom end, heads are 454 open 781 casting almost as good as 049 heads., i have pan,timming cover maybe a balancer, rockers, valve covers.
Perry </HTML>
