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Flywheel bolt patterns 1800

uid 4846's pic
posted by  JohnMc on  Mon Jan 31 16:06 CST 2005
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last visit: Thu Oct 23 07:42 CST 2014
[RELATED]

Here are a few pics I just snapped of the head. It's just about to go back onto the engine.

Top view showing flat injector islands. Another thing that seems odd to me is the bolt head right above the #1 exhaust port. Not sure what that is for. I haven't checked yet to see if it is connected to the water jacket.
Pic #1

View down the center exhaust ports. They are much roomier than the ports on my F head. The intakes are more roughly finished (good for carbs!) and have the valve guides tapered.
Pic #2

Combustion chambers - I matched the sides to the 92mm bore and took a fair amount of metal out from around the sparkplug trying to get some more cc's (started out with only 33 as I recall). I ran out of metal I thought I should remove before I got as much volume as I wanted. I didn't want to remove any more of the squish area opposite the plug.
Pic #3

It also has hardened valve seats on the exhausts, double valve springs, and big valves - I think you'd probably need to offset bore the guides to get any larger.
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I'm JohnMc, and I approved this message.






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