big block headers and sb intake

bought headers at swap meet and were told they were for small block.
being new to the scene, i bought them and found out they do not fit my 318 but match my friend's 440

do not know anything about them, looked for serial number and did not see one they are a little rusty but no cracks or holes $75

also have a stock two barrel intake from a 68 318 engine from a coronet 440
$50

both prices are negotiable and i am also open to trades
i'm specifically looking for tail light for 69 dart
sb a body headers
a body bench seat
drag/street slicks with wheels
but lemme know what you got and we can probably work something out