 1.7 head ID |
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| r_towle |
 Jul 10 2009, 07:25 PM
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#1
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Custom Member  Group: Members Posts: 24,585 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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What are the valid part numbers for a 1.7 head....
OR What is the register size for the cylinder in the head? Rich |
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Replies(1 - 5)
| HAM Inc |
Jul 11 2009, 10:24 AM
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#2
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Senior Member Group: Members Posts: 846 Joined: 24-July 06 From: Watkinsville,GA Member No.: 6,499 Region Association: None |
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 |
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| r_towle |
Jul 11 2009, 06:24 PM
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#3
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Custom Member Group: Members Posts: 24,585 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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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 |
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| Dave_Darling |
Jul 11 2009, 07:54 PM
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#4
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914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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I believe the 1.8 and 2.0 registers are 105mm.
--DD |
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| r_towle |
Jul 11 2009, 08:12 PM
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#5
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Custom Member Group: Members Posts: 24,585 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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that is exactly what I need.
Just so long as they are far enough apart so I know.. Rich |
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| HAM Inc |
Jul 12 2009, 10:01 AM
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#6
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Senior Member Group: Members Posts: 846 Joined: 24-July 06 From: Watkinsville,GA Member No.: 6,499 Region Association: None |
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.
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