cylinder head work

cylinder head work

Author
Discussion

glenrobbo

35,074 posts

149 months

Monday 12th October 2015
quotequote all
steve j said:
I have both, a 6 and an 8, 8 is good, 6 is pure bliss hehe
https://www.youtube.com/watch?v=7II4TCoUiUIdriving
Well that's just childish Stevie!


.......I love it!!! biglaughthumbup

steve j

3,223 posts

227 months

Monday 12th October 2015
quotequote all
glenrobbo said:
Well that's just childish Stevie!


.......I love it!!! biglaughthumbup
Keeping it in the family, Clive f and his awesome 500 Griff coolhttps://www.youtube.com/watch?v=okx8ln628NY

phillpot

17,105 posts

182 months

Sunday 18th October 2015
quotequote all
greymrj said:
Forgot to add, Phillpot, what cam did you use and did you make any change to the valves themselves?
Sorry for the delay..............

Cam is a Piper KBV629270, designated "Fast Road", I went for the cheaper regrind rather than machined from a new blank.


Valves were given a bit of polishing up to remove the sharp angles between the seat area and valve face. Heads were by no means fully ported and polished but some of the biggest casting lumps were ground out.


Not mine (photo found on Google) but gives the idea, note sharp edges on valve on right compared to smoother profile on left