[1966convstang]

I was wondering if I could get some opinions on doing some work on my 1966 Mustanghttp://images.intellitxt.com/ast/adTypes/2.gif convertible. It is a 289 V8 with a four barrel carb. There is a little noise in a lifter I believe and I am thinking about taking out the engine this winter and doing some work on the car, flipping it over, etc. I noticed when I got the car it has cobra on the valve covers but the engine code is a code C and not code K. Is it better to keep the engine original to the vin or would it be better to leave the cobra valve covers on? And, also, could you please tell me how to know if it has cobra heads?

The engine tag by the carb says: 289 E 66 Ford
G 236-T 12
The tag is attached to the intake manifold.

VIN: 6F08C727182
76C Z 36 25G 33 Axle: 6 Trans: 6

I have posted some photos under my profile for more information.
Thank you in advance to anyone who replies. Thanks, Brian brian@fischertharp.com

[Jack65K]

The valve covers are a matter of your preference unless you are looking to go with a concourse correct cover.
COBRA or K code heads will have a visible casting number of 19, 20, or 21. The number is not hard to see and is on the front lower corner of the driver side head and on the rear of th epassenger head and you can see them without removing the valve covers.
Jack

[Veronica]

Hello. Here's a picture of that number.

[1966convstang]

I will look and see if I can find a number on the heads. Thank you for your responses. --Brian