9 1/2 Engine rebuild II
Posted: 14 Apr 2018 15:42
Heads are done and ready for coating. Peter at company Virtauskansi did really a first class job. He thinks we might get some 10-15% more flow by this. He also found some nasty brittles on intake seats. Luckily they are horisontally thus not altering tightness.
And three pictures...
Notice how smooth radius cut valve seats are and notice 30deg cut back on intake valve. Valve guides look like they should now.
http://www.hotrod.com/articles/valve-angle/
http://www.williamsperformanceengines.com/valves.html
http://www.rlengines.com/Web_Pages/Seri ... chine.html
And three pictures...
Notice how smooth radius cut valve seats are and notice 30deg cut back on intake valve. Valve guides look like they should now.
http://www.hotrod.com/articles/valve-angle/
http://www.williamsperformanceengines.com/valves.html
http://www.rlengines.com/Web_Pages/Seri ... chine.html