Hi All,
Musky, Wasnt this the head that was for sale from the USA a few weeks ago ????
Isnt the seller a member here??
To the best of my knowledge and practical experience with A10's
The 67-1549 head is fitted with the 1.450in. dia inlet valves,
The ""Big Valve" head with the 1.50.in valves is overstamped on the last two digits to make it 67-1571
When I built my SR engine, I was given (those were the days
) a 67-1571 head,
It needed a lot of work doing to it, I had it sorted by the "cylinder head shop"
I fitted it with their "Nucleus" valves which are modern "penny on a stick" design, these are 1.450 in.dia
as new seats were fitted. Their view was that the modern design would flow more than the bigger valves would anyway ???? ????
Anyway the result is that it will rev out on the highest gearing that I can fit
Cheers
John O R