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| Coolant passages are below the intake ports in some A-series [[Cylinder Heads]]. They can be large holes or small holes. | Coolant passages are below the intake ports in some A-series [[Cylinder Heads]]. They can be large holes or small holes. | ||
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| === Interchange === | === Interchange === | ||
| - | A-series heads will interchange with either dry or wet intakes with the following caveats: | + | A-series heads will interchange with either dry or wet [[Intake Manifold]] with the following caveats: |
| * If the intake doesn't have coolant passages, tap the head's coolant ports and install plugs | * If the intake doesn't have coolant passages, tap the head's coolant ports and install plugs | ||
| *: [http://datsun1200.com/modules/myalbum/photo.php?lid=4444 http://datsun1200.com/modules/myalbum/photos/thumbs/4444.jpg][http://datsun1200.com/modules/myalbum/photo.php?lid=4848 http://datsun1200.com/modules/myalbum/photos/thumbs/4848.jpg] | *: [http://datsun1200.com/modules/myalbum/photo.php?lid=4444 http://datsun1200.com/modules/myalbum/photos/thumbs/4444.jpg][http://datsun1200.com/modules/myalbum/photo.php?lid=4848 http://datsun1200.com/modules/myalbum/photos/thumbs/4848.jpg] | ||
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| *: [http://datsun1200.com/modules/myalbum/photo.php?lid=5758 http://datsun1200.com/modules/myalbum/photos/thumbs/5758.jpg] | *: [http://datsun1200.com/modules/myalbum/photo.php?lid=5758 http://datsun1200.com/modules/myalbum/photos/thumbs/5758.jpg] | ||
| - | Directions for plugging with blind plugs: | + | Directions for plugging the cylinder head with blind plugs: |
| <br>[http://datsun1200.com/modules/myalbum/photo.php?lid=4440 http://datsun1200.com/modules/myalbum/photos/thumbs/4440.jpg] | <br>[http://datsun1200.com/modules/myalbum/photo.php?lid=4440 http://datsun1200.com/modules/myalbum/photos/thumbs/4440.jpg] | ||
Revision as of 05:44, 8 June 2012
Coolant passages are below the intake ports in some A-series Cylinder Heads. They can be large holes or small holes.
Overview
- A12GX has Four Large coolant holes, one beneath each inlet
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- Other heads have either no coolant holes, small ones, or a mix:
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- Standard Datsun 1200 heads have no coolant holes on the intake side.
Interchange
A-series heads will interchange with either dry or wet Intake Manifold with the following caveats:
- If the intake doesn't have coolant passages, tap the head's coolant ports and install plugs
-
- If the intake does, but the head doesn't, cold-weather starting and cold-idle may suffer due to insufficient heat. However, warm-engine operation should be OK.
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Directions for plugging the cylinder head with blind plugs:
