Indeed so. I have quipped that it would be cheaper to go on a self-funded stainless welding and fabrication course and then make the damn things yourself than shunt out that sort of cash. You would also end up with longer lasting ones.
Originally Posted by penfold
I need to talk to a fellow club member who does have all those skills about fabrication of manifolds. Given its all hidden away, as long as it WAI I'm not fussy over appearance. Someone in the Moonraker club does them. He is also looking into water jackets for the turbochargers as they run pretty hot
To echo other posters, the HTs have a large quantity of major components that are specific to them, or are common to the vertical engines but are machined differently and possibly incompatibly. I suspect that this may include major castings.
I'd be ineterested in details of the two nice ones by PM though. As mine are 40 years old a like for like replacement may be a vaible consideration, even though they were apparently rebuilt by Golden Arrow 20 years ago.
Two beers please, my friend is paying.