Hi Guys,
Now we are getting into the nitty gritty of RL beddys
Richard your memory seems to be spot on, may I add that the engine numbers stamped RL..... were parcular to the RL 4x4's.
There was three different model engines early, middle and late, the latter being a freeflow design. I think they had the extra whelch plug in the rear of the cylinder head, as well as the other details you have mentioned.
Now I'm not saying I know it all, that I would have to leave for my dad, he is the one I would ask next time I see him.
Have now increased our beddy stable, last count was 15
Cheers and Beers,
Brent Delaney.