Table of Contents
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IH: Engine Mechanicals
Head Identification
7 steps to head identification 1)
| 1. If these fins are present, your looking at 900 heads for sure. In later 71 these fins disappeared. That means: | 2. There are some 900 heads that didnt have those fins and no 1000 heads have these fins. If no fins go to step 3. | 3. Decide if the heads are later 71 (900) or 1000. Do that by looking at oil drain size Note the size of drain compared to head bolt holes. |
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| 4. 1000 uses 3/16“ oil drains. Now you know if your looking at late 1971 900 (big drains) or 1000 (small drains). If heads have small drains go to step 5 to determine if heads are e1000 (72-E73) or L1000 (L73-78). | |||
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| 1969 Iron Heads 2) |
1)
Dr Dick of the XLFORUM http://xlforum.net/vbportal/forums/showthread.php?p=5133944
2)
photo by Monte03 of the XLFORUM http://xlforum.net/vbportal/forums/showthread.php?t=166440&page=6
