Re: 454 engine smog/air pump
All 73-87 here had charcoal canisters. But not all had the air pump.
the book I was looking in was us printed.
Does you big Block exhaust manifolds have the holes at the top and air injector line attached on both sides.
Pic's of your engine bay and your passenger side upper Rad support.
Is this motor all ways been in it. Have you ever replaced the exhaust manifolds.
the air pump is mounted low most times. Not sure if it share the same bracket as one of the 6cyl.
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1977 REG cab Long Bed with a 1984 Front Clip, 82 305 .60 over 9.0.1 flat top pistons, 4bbl, TH350, w/84 SS-intake & cam , w/ 1977 big block rad, 1975 gear box, 1984 master w/ metric fittings top & SAE fitting @ portion block, 1975 3.42 gear open diff. Duel 77-87 Factory air cleaner, duel inlet from rad support . Down sized 9' to new 8' Steel flat bed
Was a 77 454 w/308 gear. Taken out 550 lbs. up front with motor clip change.
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