Given the fact that the same questions come up repeatedly and we frequently have to ask the same people for the same answers (viz. "what do my casting numbers mean?"), it's been decided that a Big Six FAQ is in order.
Q: how can i tell the difference between a 240 and a 300?
A: http://fordsix.com/forum/viewtopic.php?p=365113
Q: Some guy gave me a free 300, and I want to rebuild it and put it in my Bronco. But I want to be sure I order the right parts, how do I figure out what year the motor is?
A: http://fordsix.com/forum/viewtopic.php?t=48363
Q: What's a 300 weigh?
A: About 560 lbs with manifolds & flywheel.
Q: I've heard alot about using chevy inline six rocker arms for a cheap performance gain, what is this? How hard is it to do?
A: http://fordsix.com/forum/viewtopic.php?t=48364
Q: Thinking about Roller Rockers?
A: http://fordsix.com/forum/viewtopic.php?t=48006
A: http://fordsix.com/forum/viewtopic.php?t=48364
Q: I was wondering if the Non-EFI head will work with the EFI intakes?
A: http://fordsix.com/forum/viewtopic.php?t=48366
Q: Common Cam profiles, including stock:
A: http://fordsix.com/forum/viewtopic.php?t=48357
Q: I think I have a forged steel crank in my 300. How do I tell?
A: http://fordsix.com/forum/viewtopic.php?t=46878
Q: Do I have any options for a crossflow head besides the one in development by Classinc Inlines?
A: http://fordsix.com/forum/viewtopic.php?t=48372
Q: Motor Mount Coordinates
http://fordsix.com/forum/viewtopic.php?p=365107
Q: Has anyone ever put the larger valves into a newer EFI head?? I have read somewhere that there is a clearance issue when installing the Larger Chebby valves into the EFI head?
A: http://fordsix.com/forum/viewtopic.php?t=48369
Q: Anyone know the CFM ratings of the various Motor Craft 2100 & 2150 carbs?
A: http://fordsix.com/forum/viewtopic.php?p=365109
Q: Anyone with a 53-64 F100 that is considering swapping in a Ford 240/300 inline 6 cylinder?
A: http://fordsix.com/forum/viewtopic.php?t=46462
Q: how can i tell the difference between a 240 and a 300?
A: http://fordsix.com/forum/viewtopic.php?p=365113
Q: Some guy gave me a free 300, and I want to rebuild it and put it in my Bronco. But I want to be sure I order the right parts, how do I figure out what year the motor is?
A: http://fordsix.com/forum/viewtopic.php?t=48363
Q: What's a 300 weigh?
A: About 560 lbs with manifolds & flywheel.
Q: I've heard alot about using chevy inline six rocker arms for a cheap performance gain, what is this? How hard is it to do?
A: http://fordsix.com/forum/viewtopic.php?t=48364
Q: Thinking about Roller Rockers?
A: http://fordsix.com/forum/viewtopic.php?t=48006
A: http://fordsix.com/forum/viewtopic.php?t=48364
Q: I was wondering if the Non-EFI head will work with the EFI intakes?
A: http://fordsix.com/forum/viewtopic.php?t=48366
Q: Common Cam profiles, including stock:
A: http://fordsix.com/forum/viewtopic.php?t=48357
Q: I think I have a forged steel crank in my 300. How do I tell?
A: http://fordsix.com/forum/viewtopic.php?t=46878
Q: Do I have any options for a crossflow head besides the one in development by Classinc Inlines?
A: http://fordsix.com/forum/viewtopic.php?t=48372
Q: Motor Mount Coordinates
http://fordsix.com/forum/viewtopic.php?p=365107
Q: Has anyone ever put the larger valves into a newer EFI head?? I have read somewhere that there is a clearance issue when installing the Larger Chebby valves into the EFI head?
A: http://fordsix.com/forum/viewtopic.php?t=48369
Q: Anyone know the CFM ratings of the various Motor Craft 2100 & 2150 carbs?
A: http://fordsix.com/forum/viewtopic.php?p=365109
Q: Anyone with a 53-64 F100 that is considering swapping in a Ford 240/300 inline 6 cylinder?
A: http://fordsix.com/forum/viewtopic.php?t=46462