somewhere on here a fellow asked about building a bogus boss and i said i would post of the one i built back in the late 70`s .. i cant find that thread so i will put it here ..
this engine sounds like one of johnny cash,s song if you have ever heard (one piece at a time) the song where over about a thirty year period he brings home a cadilac car one piece at a time in his lunch box and put it together in his garage. when he finally got it going the liscence dept ask him what model it was he said ( its a 49-50-51 -52 -53 etc.etc the bogus boss was a 70 302 block 66 289 steel crank & rods - 73 351 cleveland open chamber heads. 70 351 c flat top pistons . that i had to cut the skirts to clear the crank throw. the pistons stuck out of the block about .050 but it didnt matter with the open heads. 318 dodge pushrods, big block chevy rocker studs, cleveland guide plates. 455 pontiac rockers, olds 455 valve springs which i still put those on ford engines i build , they have one less coil and fit easy with a shim .to the same spring height. the motor would scream if you hit it above 2500 rpm.