Ron, 80 lbs lighter...what does it weigh? What does it weight complete? You got both, weigh them and post the actual weights. The guy I sold my 460 to weighed it at 518 lbs complete with
oil but minus carb. Assuming the head/intake combo is about the same that would put an aluminum head/intake FE under 440 lbs???? I find that very hard to believe until I see it on a scale.
It's a known fact the SVO CJ heads are 35 lbs lighter then stock, add 70 to 518, thats 588. I'll guess on the intake weight based on iron and an aluminum Performer for 351's I have and just weighed at 40 & 15 lbs, maybe 60 tops and 20 tops (iron/aluminum '385' intakes). Add that 40 extra for the iron intake and we have 628 for an all iron 460.
Published weights are an ok starting point but keep in mind over the years they may change the way they weight them, did it have a flywheel or flexplate? With or without cast iron exhaust manifolds? Water pump? Aluminum intake? Brackets and accessories?
Actual weights, an '89 351 block, bare with main caps/bolt... 163 lbs. Iron complete 460 head from '77 TC... 70 lbs.
Iron E5 windsor heads complete... 48lbs, as mentioned above iron&aluminum 351 intakes... 40 & 15 respectively.