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Old 07-20-2014, 03:05 PM   #1
thefraze_1020
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Hercules 250?

I'm looking at a truck currently for sale, 1977 C10 250 I6, 3 speed. The valve cover says "Hercules 250". What is this? Anybody have any info?
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Old 07-21-2014, 06:10 AM   #2
D13
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Re: Hercules 250?

It's a decal I'm guessing.
77 should have an integral head 250, probably 1 barrel electric choke Monojet. Intake is part of the head,.
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Old 07-21-2014, 02:02 PM   #3
Billy81
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Re: Hercules 250?

It's probably a tank decal for an old Hercules 250 dirt bike that someone put on the valve cover.
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Old 07-21-2014, 02:49 PM   #4
thefraze_1020
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Re: Hercules 250?

Here's a picture...
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Old 07-21-2014, 02:51 PM   #5
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Re: Hercules 250?

...Sorry it's so small. Not sure how to enlarge it when I upload.
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Old 07-22-2014, 01:03 AM   #6
willett
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Re: Hercules 250?

The google brought up nothing, but I did find this:


Look at the fan thing on the front of that motor! I think it's a rotary engine of some sort.

Ed.
Duh, it says wankel right on the side,

Ps. Sorry for the hijack
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Old 07-25-2014, 12:29 PM   #7
76stepsidechevy
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Re: Hercules 250?

That was probably a replacement engine at some point. I service a few fork lifts at work that run gm 4 cylinders and one of them has a Hercules 2.5 sticker on the valve cover.
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