Difference between 240 and 300 heads
Thread Starter
|
Senior User
Joined: Jul 2001
Posts: 423
Likes: 0
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?
Posting Guru
Joined: Mar 2001
Posts: 1,494
Likes: 0
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.
Posting Guru
Joined: Feb 2001
Posts: 1,728
Likes: 0
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.
Junior User
Joined: Feb 2002
Posts: 63
Likes: 0
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
Posts: 379
Likes: 2
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.
Trending Topics
Posting Guru
Joined: Feb 2001
Posts: 1,728
Likes: 0
From: Keweenaw Bay, MI
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
mmuenchow
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
5
May 14, 2011 05:32 PM
zsir
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
4
Nov 25, 2003 09:02 PM
David10
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
2
Jul 5, 2003 11:08 PM
