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914World.com _ 914World Garage _ Cylinder heads

Posted by: roadpilot Nov 22 2006, 10:42 PM

dead horse.gif How can you tell the difference between 1.7 heads, 1.8 heads ?.I know that the 2.0 heads have the 3 stud pattern. I have a couple sets and am a little confused. Many thanks ahead of time to all replies.

Posted by: Borderline Nov 22 2006, 11:14 PM

The 1.7L has smaller valves (39mm intake and 33mm ex) and also has smaller "register" diameter (it will accept a smaller cylinder diameter than the 1.8L). the 1.8l has 41mm intake and 34mm ex. Hope this helps.

Posted by: Borderline Nov 22 2006, 11:16 PM

oops I almost forgot....

Posted by: McMark Nov 22 2006, 11:33 PM

http://www.tunacan.net/t4/

The biggest clue is that 1.7/1.8/Bus2.0 heads have four intake manifold studs and 914 2.0 heads have three intake studs. Otherwise you have to compare the combustion chambers.