4ac Head On A 2a

[madmax7]

will a 4ac head fit a 2a motor

[RainWarriorDregs]

i don't know,

 

buuuuuut

 

what did a 2a motor come on? :D

[RedKE30]

i don't know,

 

buuuuuut

 

what did a 2a motor come on? :D

 

http://en.wikipedia.org/wiki/Toyota_A_engi...C_2A-L.2C_2A-LC

[Sam_Q]

it will physically bolt on and all the accessories like the timing belt and all that should also be a straight fit as well. However there will be a compression ration change, almost definately upwards

[madmax7]

ok sweet thanks for the help does anyone know if it will run good or will the compression ratio be to hi

Edited March 9, 2010 by madmax7

[Sam_Q]

you will likely find due to their low cost the easist option would be to just source a 4ac engine and drop it in. Might even be cheaper than a gasket set

[beerhead]

Get the whole 4AC. The 2A has a shorter stroke, so the combustion volume will be smaller than a 4A to compensate the compression drop when you reduce the volume of air the motor pumps per revolution. This rule of thumb is pretty standard across most motors. Gemini owners do a 1600 head on the 1.8 or 2L G motors to up the compression with a cam. 202 with a 186 head, 2.7 bmw 6 with a 2.3 head, are some other examples.

 

As Sam said, get the whole thing, bolt her in and your away.