No it doesn't really matter what year the block is unless you want to stick it in without having to do anything..The 1982 van motor likely has a rear sump oil pan and I imagine you will need a front sump pan for your galaxie..You would just have to swap the pan.You will also need to drill a hole in the front cover for a dipstick.

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1968 mustang..408 windsor.Vic jr heads and intake.Pro Systems 950HP holley, 1 3/4 hooker super comps,Custom CI solid roller camshaft,Probe shaft rockers, 4 speed with 4:11 detroit locker.