i'm going to refresh one of my total stock 1970 340's

would it hurt the value , if i were to sell it in the future if i put in molnar rods and crank with some nice light forged pistons . or should i just keep it 100% factory they ran well when i put them in storage 12 years ago . just wondering what would bring in the most money if i ever did sell it .
Thanks

i don't have crap built for me , even my 12 year of use 340 that was stolen is still running well that is 15 years of pounding still running i don't usualy sell **** I collect and build spares , not that i've needed one , yet

By quoting me, I am not sure if you are upset with what I posted in Post #21 or not. I was not trying to be a smart ***.I understand you are thinking about rebuilding it to use for now and maybe sell later. Again, USED, it will be worth a little more than a CORE 340 longblock and a little more for the special parts inside.

So many friends have bought used "Built with Quality Parts" engines over the years, even with receipts, only to find later when they take it apart that cheap used parts were used. I am not saying this is what YOU are doing.

Maybe it's just me but I will not buy a "BUILT" engine unless I can pull it apart and inspect the build. I bought a 410ci 5.9 Magnum stroker short block 2 years ago from a MAJOR 'On Line' sales. It got here and I did pull the engine apart and found some crud in the oil passages and 1 piston had all the ring gaps in line.

I am not in your market area as shipping from Canada to the Seattle are would be outrageous. But even if you were closer and I needed a 340, I would still buy a core block and do all the work myself. If it did have special parts inside I would maybe pay a bit more but NEVER more than 1/2 the retail price.

I'd say build it how you want it to run now. The special parts inside will not hurt the resale values but you will not get the value back.