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914World.com _ 914World Garage _ 1.7 head ID

Posted by: r_towle Jul 10 2009, 07:25 PM

What are the valid part numbers for a 1.7 head....

OR

What is the register size for the cylinder in the head?

Rich

Posted by: HAM Inc Jul 11 2009, 10:24 AM

021 101 371 Q is the most desired 1.7 head. the "J" is okay too, but doesn't have a bit of the extra beef that the Q head has in the ex port area.

The O.E. registers on all 1.7 heads are ~100mm

Posted by: r_towle Jul 11 2009, 06:24 PM

QUOTE(HAM Inc @ Jul 11 2009, 12:24 PM)

021 101 371 Q is the most desired 1.7 head. the "J" is okay too, but doesn't have a bit of the extra beef that the Q head has in the ex port area.

The O.E. registers on all 1.7 heads are ~100mm

A guy wants a 1.7 head that I have.
I need to make sure its not a 1.8 head.

~100mm for the 1.7 head register.
What is the 1.8 register?

Rich

Posted by: Dave_Darling Jul 11 2009, 07:54 PM

I believe the 1.8 and 2.0 registers are 105mm.

--DD

Posted by: r_towle Jul 11 2009, 08:12 PM

that is exactly what I need.
Just so long as they are far enough apart so I know..

Rich

Posted by: HAM Inc Jul 12 2009, 10:01 AM

Those are the O.E. specs. Folks get thrown off once in a while when they encounter a 1.7 head that has been opened to 105mm. An easy way to confirm that you have a 1.7 head is to look down the intake port from the manifold flange. 1.7 heads have no fairing above the valve guide. 1.8 and 2.0 914 heads do. Ofcourse the 2.0 914 heads are easy to spot because they have 3 intake manifold studs.