258 swap

[81cj]

Will a 258 from a 1979 work in a 1989 ? as far as accesories and smog parts 111!!!

[ironman_gq]

I think the blocks are pretty much the same only thing I can think of that might have changed was the heads and manifolds so I guess I dont know if the accessory mounting would be the same. Take pictures of one and compare them to the other to see.

[Mudrat]

Yes.

I picked up a 78 I-6 block, built it (bore, balance, cross drilled and micro polished the crank) then dropped it in my daughters 87. Only difference was the flexplate mounting. The cranks were drilled different between the 78 and 87. otor mounts and everything else is the same if your swapping whole blocks.