[Mutato192]

I just got a 1981 Caddy that I had my eye on for a few years. It does run but all the fuel lines look bad.
Seems that the injector lines are no longer in stock anywhere. Can you use 1.8 lines off a newer wrecked
Cabby? I see them all the time in yards.

 

[Butcher]

I believe the thread pitch is different on the injector end of the line. Could you swap injectors too? Probably.

 

[tolusina]

Injector thread pitch on CIS basic and lambda is the same. Differences are grooves for circlips that better retain the large seals and the presence or absence of air shroud seal 'hats'.

CIS-E runs higher system pressures than CIS basic and lambda, threads on CIS-E injectors are finer pitch to intentionally make interchanges difficult.

 

[Mutato192]

I found a guy in California that has some lines, but it seems only 1 & 3. The other stuff he has only goes to 1980?

 

[rabbitnothopper]

from what i have seen and to my knowledge

all cis fuel lines are the same for the injectors and CPR/WUR and Coldstart


the differences are for the filter to distributor
and
cis-lambda pipe


if the lines came from a mk1 and going to a mk1 then they will all fit no problem.