View Single Post
DonE DonE is offline
Wo ist die Rennstrecke?
DonE's Avatar
Join Date: Mar 2004
Location: Brooks, GA
Posts: 1,211
I picked up my heads from Xtreme Cylinder Heads in Palm City FL this afternoon. Below are some pics of one of the heads, and a pic of the trashed valves (intake and exhaust).

The valves are custom stainless steel intake and inconel exhaust valves, both turned from blanks. The guides are manganese/bronze. The inconel valves cost $25 for the blanks and $25 to custom machine each. Stock exhaust valves are $48 each. The custom stainless intake valves cost $42 each (blanks plus machining) compared to $50 for stock.

The springs had to be replaced because of the new custom valves and their retainer positions. They are Elgin springs with titanium retainers. You'll see the top of the stems are a bit higher off the retainers than stock.

Here are the old intake and exhaust valves cleaned up, but clearly show severe wear. The intake valve has a ridge cut in it at the top of travel. The stems feel as if they where sanded with 50 grit sandpaper.

The engine should be back together around Jan 1.
Old 12-22-2008, 02:15 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #70 (permalink)