Ford Automobiles banner
1 - 8 of 8 Posts

·
Registered
Joined
·
74 Posts
200's have 5 freeze plugs, and 170's have three. The only 6 cylinder offered in the 1965 Mustang was a 200, unless yours has been changed.
 

·
Administrator
Phoenix, AZ 85008
Joined
·
16,568 Posts
It should have a stamp in the block. Located on a boss on the left front of the engibne between the timing gears and the oil fiter/distributor area. If there was no stamp, then there was a metal tag. Usually bolted to the coil bracket.

OR
The 170 will have 3 core plugs. (Freeze plugs)
The 200 will have 5 core plugs. (Freeze plugs)

The early 1965 Mustang used the 170 from March (production start) to July of 1965. Very short run). The 200 was used after that.

The 200 will have a casting number of C5DE-H. The 200 was the base engine for Mustang from August 1964 and later.

Action
 

·
Administrator
Phoenix, AZ 85008
Joined
·
16,568 Posts
BTW for 1965 (or pre-1966) the 170 engine was black in color with orange paint on valve covers and air cleaner. The 1965 200 is a black block with more of a red color for air cleaner and valve covers.

For all 1966 model engines, they were all painted Ford blue.

Action
 

·
Registered
1963 and 1961 Ford Ranchero
Joined
·
14 Posts
Discussion Starter · #5 ·
Thanks for helping me identify my engine. I haven’t checked the freeze plugs yet, but by knowing the block and valve cover are painted Ford blue in my car I’m confident it’s a 200 ci. This also suggests that it is not the original engine. Now I remember the previous owner telling me that the engine came from a 66 Mustang, but I didn’t realize the color of the blocks were different between 65 and 66. Question answered.
 

·
Administrator
Phoenix, AZ 85008
Joined
·
16,568 Posts
In a cost savings move, all engines were paint the same color starting in mode year 1966. Corporate Ford blue. Which if you studied it, varied in shades depending on engine plant and model year.
Years later the blue color changed. (Likely because of cost) Somewhere in the 80s the color changed to gray.

And I have seen many original early 1960 engines painted blue. Mostly because the owner wanted to paint the engine and did not understand there was different colors for engine families prior to 66.

Action
 

·
Registered
1963 and 1961 Ford Ranchero
Joined
·
14 Posts
Discussion Starter · #7 ·
That’s good to know. As I look at old cars in the future I’ll pay more attention to engine colors. I have a 63 Ranchero 6 cyl, blue with 3 freeze plugs. Probably a repaint? Anyway to tell if it’s a 144 or 170?
 

·
Administrator
Phoenix, AZ 85008
Joined
·
16,568 Posts
The 144 was made from 1960 to 1964
The 170 was made from 1961 to about 1972

Pre-64 engines
The stamping on that old road draft tube boss I mentioned above gets that info
144 has a N
170 has a T
Both have the same bore. The 170 has a longer stroke

Action
 
1 - 8 of 8 Posts
Top