Join Date: Dec 2010
Location: Modbury (Adelaide)
GTAm 4 Valve Auto Delta head
I purchased the GTAm 4 valve Auto Delta head in raw form, so I thought. The seller was offering it in the US, managed to convince him to send it to Australia.
There was another complete engine with mono sleeve, that had the cradle to hold the cams and some other spares that went to a very successful local 105 Alfa Romeo racing driver in Jakarta. I contacted him, but he sold most of the items except the spare cams and the new pistons. I was looking for a cradle to hold the cams and a cam cover and he did not have these.
I contacted a few engineers and they said I needed the drawings and the camshafts to have enough parts and dimensions to engineer the cam cradles and cam covers etc.
Then whilst looking for something else, I discovered I had the drawings all along, wow!, how lucky was that. The drawings list the dimensions of the head. To my surprise the head was actually 'semi finished' as it had the correct measurements when compared with the drawings, i.e. datum points were there. The head only needs valves installed i.e. angles, sizes and inlet and outlets ports and combustion chamber porting dimensions were also listed in the drawings.
I quickly got back to Jakarta and managed to acquire the 4 valve camshafts and a set of 4 valve pistons (At Chinese new year prices = 'very low prices').
At this point it is destined to go on my 1969 AR00551 engine/block and to run fuel injection.
p.s Happy Chinese New year on the 5th February 2019 every one.
Last edited by Steve105; 02-04-2019 at 04:51 AM.