Try to find a 302 that was used in the late 60's or early 70's, casting no's C8OE-6015-A & B, C8TE-6015-B preferred. Later blocks (casting dates starting in 1973) were cast to provide a lower compression ratio. Just about all the parts will fit but the 289 crank and rods may (I say may, I don't know) hit the lower cylinder skirt. Remember that early 1965 289 engines were 5 bolt to the transmissions, so find out your casting number first. If you look athe the lorer right hand block where the starter goes, you will find the casting p/n. If it's a C5AE-6015-E p/n you are OK. A C4OE-6015-C or F are 5 bolt types.