Here are some shots of the intake valve ports on my Jensen Healey heads.

http://www.gt40s.com/images/jensen/port2.JPG

and header

http://www.gt40s.com/images/jensen/port1.JPG

The exhaust port is exactly the same size and the intake port, a very symetric head.

How do these stack up with modern 4 valve heads? They seem small to me, but I'm used to fooling with SB Fords and my Lotus head, which is the same motor basically, has larger ports. Are 4 valve Honda's etc. much larger?

Ron

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Ron
http://www.gt40s.com
Lotus Turbo Esprit
BMW E36 M3
RF GT40 Replica
Jensen-Healey: IT prep progressing!