The 400 wasn't available in the El Camino in '78.
The Chevrolet small block 400 will bolt in place of the 305 but be sure to use a 400 flywheel or flex plate. Do not use the 305 flywheel or flex plate on the 400.
You don't...
Same as a 78 chevelle.
yes it should.
78
19.5%
If you're referring to the wheel bolt pattern it is 5x4.75
85W90 gear oil
400 - 2x = 244 Therefore, 2x = 400 - 244 = 156 Therefore, x = 156/2 = 78 Therefore, you would be 78 years old.
400 - 78 - 22 --84 - 16 - 81 - 19 - 27 = 400 - 78 - 22 + 84 - 16 - 81 - 19 - 27 = 241
consult the trouble shooting section of your repair manual
78$