aggerz wrote:Thanks Angry - I dug my book out and got all the specs so I'll take that with me in the morning. I have a bit more confidence this bloke can help me out. Cheers for the tips i will keep all of that in mind.
Gottah love that this is stirring up some really interesting discussion. Thanks all.
No probs mate. By the by, a head doesnt/shouldnt be machined on gasket face unless its not "flat" or is burned etc from gasket failure, heads have a min thickness and lots of them cant have much taken off, for instance XJ6 Jag cant have more than .005thou from memory, WRX is 12 thou max etc.
Your VALVE STEM HEIGHTS SHOULD BE BETWEEN 37.77-38.07MM, you really want 37.77 max. By the look of your exhaust valves they have not been "tipped" and would be way too long, your inlets will be too long as well. If you dont want new seats (cant afford etc) you can take some off the collet, down to just above cap surface BUT must keep stem tip surface above that for the bucket to push on, you bucket has a raised section in middle under to push on stem etc (shim on top buckets). You might, when doing this, end up less than 37.77mm, if your going a lot under I would do seats. Measure all first, that way can save your valves, fit seats and start again. Bonus is that new modern seats are a LOT better than O.E. 70s Kwaka seats. Good luck with it.
A.E.