My friend has several injectors in a parts bin at his shop. How can you tell which ones are the primary 550cc injectors and which ones are the secondary injectors?? I believe they are different lengths but the 2 I have now are the same length.
thanks
Kelvin

 

not shure if this is true with all fd's but my primaries had grey tops (the electrical connector thingy) and the secondaries had red tops...hope that helped,
id try and figure out the serial # when i get back to school ill see if i can find the primary serial# my secondaries are off in a far off place doin better good...

 

hmm Thats a good question... My secondarys have grey tops... Never seen the primarys

 

Anyone know for sure??

 

heres the serial# on both of my primaries
195500-2460