On Wed, 19 Apr 2006, John & Allison Cyganowski wrote:
> What is a rim flow valve? What is the advantage?
Rimflo is a brand name, they come from the UK, I guess.
The advantage is that:
1. they are forged, 1-piece 21 4N stainless
2. the head shape mimic what you would get if you "back cut" the stock
valves....
So, you get better flow, better heat characteristics and the one piece
design means that the head will stay attached to the stem under pretty
much every condition short of a piston hitting the valve - in which case
the valve is the least of your problems. :-)
Are they worth the money? You betcha!
> John
regards,
rml
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