Re building a cylinder head

[unreal106]

Hi there

When re building a standard head is it recommended to get new half cones for the valves or use what came out ?

[greyjasper51]

Whats the use? Fast road, competition would get new ones just for sake of it, normal use reuse them...

[unreal106]

Fast road/track - real track use not just one track day a year lol

Thanks 106 parts sell them in packs of 5 that's a total rse as we need 16 meaning I have to buy 20!!!! Not cheap either

[greyjasper51]

For an 8v head i assume, there called collets btw and ring and ask they may have a bag already opened you could have one out of... 3 bags + 1...

[wadoryu]

http://www.saxperience.com/forum/showthread.php?t=328665

[Ross]

Hi there

When re building a standard head is it recommended to get new half cones for the valves or use what came out ?

I've always recycled mine. Never any issues, including an 8k redline and 400+ bhp. Get em if your worried, but I didn't bother.

[yr51ocw]

Its very rare to NEED to use new collects. Just have a visual check for any distortion and check that they are properly pre-loaded once the valve and spring have been re-fitted.

[unreal106]

Ok recycle it is they look in good condition and will do a good visual once re building.