Most likely not. GM didn't start using electronic engine management of any kind for a couple more years.
... what about them..?
No, they're 2 totally different bodystyles
Yes
All El Camino's with catalytic convertors were "unleaded" fuel only cars; 1975-1987.
The back glass from any 1978 or newer El Camino or Caballero will work.
.35.
Chevy Malibu. Mostly.
It came with one catalytic converter
my 79 Caballero is 3372 lbs. has a 350 motor.
Go to manheimgold.com and look it up.
1,8,4,3,6,5,7,2 with numbers 1,3,5,7 being on the drivers side.
where is the vin no in a1972 el camino