Posted by Dave Horvath [162.158.79.170] on Wednesday, August 21, 2019 at 14:22:40 :
I always wrongly assumed that the pumps with the up-turned rocker arms were for short blocks and the pumps with the straight arms were for long blocks. I have recently removed several pumps with the up-turned arm from long blocks and I have seen them advertised on eBay as fitting both a 230 (short block) and a 237 (long block).
So I guess my question is, what are the differences? Is it early vs. late and the straight arm only works on later long blocks? Thanks for any insights.
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