I BELIEVE the point gap is ( .017 ) and point dwell is ( 26 - 31 )
( .035 inch ) is the spark plug gap
I believe that's .017 point gap with the automatic transmission equipped 390
bad
It will serve the purpose and may fit perfectly or you may have to do a little modification.
The point dwell is 26 - 30 The point gap is .017 According to motorcraft.com ( one of Fords websites )
should be between .017" and .021"
No the 390 is a big block the 302 is a small block.
About 10 to 14 mpg
Counting the one in my garage.... 1.5
ZIT'S are yummy 2 me XD
in the valve cover left side and hooked to carb
No. ... You absolutely cannot do this swap due to different transmissions bell housing bolt patterns. The frame stanchions for the 390 engine mounts would have to be swapped in to the '83. The 390 was discontinued in 1976 in the F250's so the 1977 had to have been swapped once before. Be sure the 1977 F250 you have is the correct year if, in fact, you actually do have a 390. Person above is an idot. Swap motor mounts, and swap engine. if you have a c6 trans in the f350 you be just fine.