being the engine you're wanting to install is a chevy the following will have to be changed/ modified / moved.
wiring harness, chevy's accessories are on the opposite side from a pontiac, including the a/c.
a/c condensor is different [lines routing ect]
transmission will need changed if it's not a unibolt unit. the car may or may not have a unibolt in it being a 78.
motor mounts are different, location will need changed.
exhaust will be different.
starter will be different.
all the engine accessory brackets will be different.
fan shroud will be different, may be modified to fit tho.
the springs will be close enough as the 301 is slightly lighter than the sbc.
personally, i'd build a mild 350/400 pontiac and install it as it'll be less change over and probably comparable economy.
move the engine mounts, a wider y pipe [if single exhaust],a clean 4 core radiator[ you'll do this regardless of what engine i hope] and you'll be close to being set.
if you do this swap right the car will pass visual and should pass emissions also. [ most current techs can't tell a 455 from a 267]
mike
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so many pontiacs, so little time..................
moderator is a glorified word for an unappreciated prick..................
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