[Healeys] The AEC960 Healey 3000 Cylinder Head spark plug seat and timing issue

[Chris Dimmock [Healey]]

Ok Guys - here is the follow up as promised re the spark plug seat issue on
the AEC960 cylinder head.

I've discussed this on and off for nearly 12 years - we discovered this
issue when I rebuilt my BJ8 in 1998

Yesterday, I pulled out 3 different westlake design cylinder heads - a
Sprite; a 100/4; and a 3000 - and using the SAME spark plug - took a few
pics....

Simply - the spark plugs on "some" 12 port 3000 cylinder heads don't go in
deep enough compared to any other westlake head design.

Which is just wrong....

Here is my take, with pictures....
http://www.myaustinhealey.com/aec960-healey-cylinder-head.html

Fire away.....

Chris
www.myaustinhealey.com