heads with cast iron skulls

[troutbishop]

Hi all will be picking up a spare head tomorrow with the cast iron skull are they any good ? any problems with them ? also which heads had the 6mm studs for the inlet stubs ?

                              cheers Kev 

 

[redax5]

early ones had cast iron skulls, then they didn't, went to bare alloy, then factory went back to cast iron skulls, had issues, changed supplier, had more issues, changed to another supplier, then they were good

it really depends on what year it is, later the better
late ones have the year they were manufactured stamped in the, 3/81 means March 1981, etc

 

[troutbishop]

Thanks for that will have a look tomorrow see if I can find a date . Do they crack like the alloy ones ?

 

[3patC]

I never had any bother with the one on my 74 3C, rarely needed shimming and was never welded. This was over a period of many years and many miles.

 

[drikko]

Hi all will be picking up a spare head tomorrow with the cast iron skull are they any good ?

You won't have to wear a helmet.

 

[troutbishop]

  No need anyway for the helmet I have a thick head  . 11 80 stamped on the bottom of the head all good fins with inlet stubs    might need a valve seat and has had two already . good price though.