valve covers

Old April 30th, 2019, 07:14 PM
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valve covers

Just purchased a 1968 400/400 take out from a '68 442 for my '68 442. Prior owner put a 350 chevy in it. The valve covers have indents toward the rear of them and this is strange to me. I thought all olds valve covers where flat all the way down. Does anybody have any information about this? BTW the motor and trans are numbers matching.
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Old April 30th, 2019, 08:06 PM
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BBO in the 68 - 72 A bodies got notched valve covers to clear the brake booster and air box.
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Old April 30th, 2019, 09:59 PM
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Originally Posted by svnt442 View Post
BBO in the 68 - 72 A bodies got notched valve covers to clear the brake booster and air box.
Actually, 1967 A-body cars with BBO got one notched cover on the driver side since 67 was the first year for the larger 11" power brake booster (64-66 cars got the 9" booster). 68 was the first year for the larger HVAC box, thus the addition of the notched passenger side cover on the 68-72 cars. About half the cars you see on the web incorrectly have the notches oriented to the front.
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Old May 1st, 2019, 08:58 AM
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I knew you guys would know the answer. Thanks
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