Mine is 1976 GBCL 482. Had my injectors replaced when I blew a head gasket on my 6404 Ammarine (starboard side). Got extra connection boots and they came in handy when one cracked and leaked fuel a few years later. Fifteen minute repair vs. a week waiting for parts.
I mentioned the head gasket because the original box heat exchanger rusted inside and developed a small hole that allowed raw water to leak into my #6 cylinder. Boom!!! when I tried to start. Very expensive repair that could have been avoided had I been doing a better job inspecting.
When removing and replacing injectors don't force or bend anything and get the hose clamp pliers for the clamps, makes things a lot easier.
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