will lt1 heads fit on a older style 350 chevy?

no, nothing lines up... the lt1 is a different generation and uses reverse flow cooling... the coolant is pumped to the heads before the block..... totally different animal.

the somewhat some until eventually now small blocks have a distinctive kind mount for that's ability steerage. you merely would desire to locate the brackets for that engine in the back of the drivers cylinder head is a flat floor with some numbers stamped... this facilitates you establish twelve months and length which will help with looking the main suitable brackets or get some custom ones i won't be able to remember if the 86 Camaro had a single serpentine belt or assorted v belts

jacksonstevena is correct.