Difference between 240 and 300 heads
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Difference between 240 and 300 heads
Does anyone know how to identify a 240 cylinder head from a 300 head?
I picked up a head from the swap meet that was supposed to be a 300, but when I got it home and took a closer look at it I'm not sure. I thought the 300 used an O-ring seal on the exhaust valve and an umbrella seal on the intake valve. The 240 uses umbrella seals on all the valves. The head I bought has umbrella seals on all valves. The casting # on the head reads C8AE-D 10 and on top of the head reads 0A20. Is there any other way to positively identify them?
I picked up a head from the swap meet that was supposed to be a 300, but when I got it home and took a closer look at it I'm not sure. I thought the 300 used an O-ring seal on the exhaust valve and an umbrella seal on the intake valve. The 240 uses umbrella seals on all the valves. The head I bought has umbrella seals on all valves. The casting # on the head reads C8AE-D 10 and on top of the head reads 0A20. Is there any other way to positively identify them?
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Difference between 240 and 300 heads
I can't say myself for sure, but I found your head casting number in one of the tech articles at fordsix:
http://fordsix.com/tech/inlinesixdata.htm
...appears to confirm your suspiscion.
http://fordsix.com/tech/inlinesixdata.htm
...appears to confirm your suspiscion.
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From: Keweenaw Bay, MI
Difference between 240 and 300 heads
I know of two things different. First, the combustion chamber volume is less, and second, some of the newer 300 if not most of them have drilled and tapped holes into each exhaust port for the smog pump discharge manifold. I do not beleive the 240 had these.
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Difference between 240 and 300 heads
can anyone tell by looking at these 2 heads and see which one (if any) is a 240 head i foudn the casting number but i cant read it
http://www.geocities.com/outlawoffroad2002/head.htm
http://www.geocities.com/outlawoffroad2002/head.htm
Senior User
Joined: Nov 2000
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From: Azle, TX
Difference between 240 and 300 heads
The top one looks like the head on my 240. That bottom head goes to a 300 I think because it looks like it's one of the lower compression heads.
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