Considered the “1200” because of the engine size
Civic debuted in 1973 that achieved more than 40 mpg on the highway with dimensions with a 86.6-inch wheelbase and 139.8-inch overall length. Powered by a 1170cc EB1 all aluminum engine except for the cylinder liner, with the 2 speed Hondamatic or 4 speed standard transmission made this quite the economy car to drive. In 1974 the engine grew to 1237cc EB2 and grew 146.9-inch in length. The cylinder head is aluminum with a cross flow design, intake ports on the back and exhaust on the front side. This design generally produces more power than others with both ports on the same side.
This design has won many racing championships including a great
Canadian driver Jacques Villeneuve or American driver Adam Malley still racing his today.
In 1978 the cylinder head (EB3) was redesigned with larger intake and exhaust valves and larger straighter intake & exhaust ports including a deeper combustion chamber with domed pistons. This engine design lends is self to high performance modifications.
How to identify a 1200:
-1200cc engine, designated EB1,EB2, or EB3
-Engine will only say Honda on the rocker cover
-Hose for air filter goes to passenger side fender (if it’s still stock)
-Water pump is on the front drivers side and alternator is on the back
-Fenders shorter in length than the CVCC
-2 spoke black steering wheel
-Hondamatic or 4spd transmission Standard 1200’s never received a 5spd transmission
Only the Canadian 1978-79 Special X version received the 5spd transmission
-73-79 Chassis code was designated SB
-74-77 1200: EB2 motor had 2mm larger bore increasing displacement and power lightly
-78-79 1200: The EB3 was very different from the previous years. The most notable differences were the domed pistons and the new head (dished combustion chamber and larger valves).
-73-79 Civics did not have trim level specifications but were differentiated by their motor types
How to tell the difference between an EB2 head and an EB3?
The EB3 head has the letter H stamped on the front passengers side of the head by the treaded mount.
EB2 head has the letter S in the same position
How to tell the difference between an EN1 head and an EB3?
The EB3 head has a threaded mount on the end opposite the timing belt for the torque rod. The EN has a torque rod mount on the gearbox.
Factory Accessories and options:
-Wooden 2 spoke steering wheel
-Overhead Console with built in clock
-Rear roof liner speakers
-AM/FM Cassette Radio
-Roof Racks and many more