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Old 01-22-2005, 07:10 PM
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Dumb Question #54

Allright, I saw this car on the net, and it said it had a 1932 V8 flathead, but if you look at the engine, there's only 3 exhaust headers but 4 spark plugs do the 2 middle cylinder exhaust ports merge into 1??

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Mike
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Old 01-22-2005, 07:20 PM
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Good guess! You are exactly right. Every flathead ever made was configured like that.
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Old 01-23-2005, 05:31 PM
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Cool didnt know that!

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Mike
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Old 01-23-2005, 06:02 PM
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Mike,

A little test...
When you see a flathead with a head off, you will see the 4 cylinders with two valves just above each one. With the information you now have, how would you identify each of the 8 valves as being intake or exhaust?
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Old 01-23-2005, 10:13 PM
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Dang, you got me there

My best guess would be that the intake ports will all be separate and the exhaust valve ports will collide into one exhaust port (the 2 middle ones of course)





Mike
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Old 01-23-2005, 10:25 PM
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Not quite...

it would be ex-in-in-ex-ex-in-in-ex
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Old 01-23-2005, 10:40 PM
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And that is the reason those bad boys are a bear to cool. The exhaust port is at the top of the cylinder and runs all the way through the water jacket to the bottom edge of the block. Coolant is trying to quench 1000F exhaust runners!!
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