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1966 427/390 A/C Dipstick Tube

Old 05-19-2018, 07:42 PM
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66BBCoupe
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Default 1966 427/390 A/C Dipstick Tube

Does the 66 427/390hp (L36) with factory AC (C60) have a longer oil dipstick tube to clear above the AC hoses or same as the non AC cars?
I have checked both a standard 427 dipstick tube and it is buried under an AC hose - I suspect either the hose in the wrong spot or the longer tube is correct. Did not spot this in the Assembly manual or judging manual. Thanks!
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Old 05-19-2018, 07:44 PM
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For 67 427 AC cars used the same dip stick as heater cars. I think it was 68 or 69 GM started to use longer dip sticks for B.B. AC cars
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Old 05-20-2018, 10:29 AM
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Originally Posted by Nowhere Man View Post
For 67 427 AC cars used the same dip stick as heater cars. I think it was 68 or 69 GM started to use longer dip sticks for B.B. AC cars
65-69 big blocks all used the same dipstick and tube. The long tube was only used on 70-74 454's.
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Old 05-20-2018, 10:37 AM
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Originally Posted by gbvette62 View Post
65-69 big blocks all used the same dipstick and tube. The long tube was only used on 70-74 454's.
thanks Glenn I knew it was started sometime in the shark era
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