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I was wondering if I could get some opinions on doing some work on my 1966 Mustang 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.
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Have adjusted the valves? They are fully adjustable, and if it has been a long time (or never) since adjustment, it can work wonders.
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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?
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The only difference internally between the C code and A code was the A code had flat-top pistons, which raised the compression.
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And, also, could you please tell me how to know if it has cobra heads?
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There were no Cobra Heads. The Cobra and Shelby had 289HP heads, of course, which had screw in rocker studs, and a retaining ridge around the base of the valve springs, but they actually didn't flow any better than stock 2V/4V heads.
A widely sold over the counter Ford upgrade was Cobra valve covers, or The "dress-up" kit, which included either chrome or Cobra valve covers, chrome dipstick, chrome rad cap, chrome brake cap, and chrome air cleaner.
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The engine tag by the carb says: 289 E 66 Ford
G 236-T 12
The tag is attached to the intake manifold.
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236-T is a code which would tell us if it were a 2V or 4V. However, Since we know the car is originally a 2V, you'd have to pull a cylinder head to know if the intake or the whole engine were changed.
1966 Mustang Engine Restoration Question
