Boss 429?
Thread Starter
|
Freshman User
Joined: Mar 2011
Posts: 39
Likes: 0
Boss 429?
I am trying to replace a water pump on what I thought was a 460 in a 75 F-250. New water pump did not line up, doing a search with the casting numbers on the original pump (C8SE 8505-E) I found out the pump belongs to a 429 Boss. I know the 429 and 460 block are the same, but I have just bought a cam and headers for the same rig and don’t know if I should change anything or not. The only thing I know for sure about this motor is it’s not the original block for this truck. Are the Boss heads or block special, and what numbers am I looking for to see if it’s more than just the water pump that is a Boss? This one has kind of thrown me for a loop, any advice would be appreciated. 
Senior User
Joined: Oct 2010
Posts: 164
Likes: 0
If your spark plug wires go into the center of your aluminum valve covers you should get excited .
Tuned
Joined: Apr 2011
Posts: 464
Likes: 5
From: Redmond, WA USA
The one and only time I have ever even seen one of these motors up close was at a Ford booth at an auto show back in 1985:
http://upload.wikimedia.org/wikipedi...x-Boss_429.jpg
For purposes of thinking pure thoughts, I try to pretend that such an engine never even actually existed!
Hotshot
Joined: Dec 2003
Posts: 18,423
Likes: 9
From: iowa
I am trying to replace a water pump on what I thought was a 460 in a 75 F-250. New water pump did not line up, doing a search with the casting numbers on the original pump (C8SE 8505-E) I found out the pump belongs to a 429 Boss. I know the 429 and 460 block are the same, but I have just bought a cam and headers for the same rig and don’t know if I should change anything or not. The only thing I know for sure about this motor is it’s not the original block for this truck. Are the Boss heads or block special, and what numbers am I looking for to see if it’s more than just the water pump that is a Boss? This one has kind of thrown me for a loop, any advice would be appreciated.
And yes both the blocks and heads are special as well as the pistons, intake, rockers etc.
Thread Starter
|
Freshman User
Joined: Mar 2011
Posts: 39
Likes: 0
Thank you, I appreciate the help. Plug wires are normal, nothing going through the valve covers. guess previous owner went with a Boss water pump, don’t know if that is an advantage. I guess my only other hope is this would be a Boss block? Any difference or easy way to tell the difference? Once again, i appreciate the help, i am a Ford big block rookie!!!
Hotshot
Joined: Dec 2003
Posts: 18,423
Likes: 9
From: iowa
If it doesn't have Boss heads on it, then it's almost assuredly NOT a boss block.
The thing is that is NOT a boss water pump, it just happens to be a water pump that has the same casting number as the one used on Boss motors. For it to be a "boss water pump" then the Boss 429 would have to be the ONLY application for it. That water pump if you note has a C8 casting number indicating a 1968 revision date, the Boss 429 didn't come out until 1969, thus it was being used on engines prior to the introduction of the Boss.
The thing is that is NOT a boss water pump, it just happens to be a water pump that has the same casting number as the one used on Boss motors. For it to be a "boss water pump" then the Boss 429 would have to be the ONLY application for it. That water pump if you note has a C8 casting number indicating a 1968 revision date, the Boss 429 didn't come out until 1969, thus it was being used on engines prior to the introduction of the Boss.
Thread
Thread Starter
Forum
Replies
Last Post
Vee
Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
7
Mar 10, 2006 02:43 PM
MR_J_DAHMER
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
5
Feb 1, 2006 01:47 AM
