7178 main caps?
Thread Starter
Instructor
Joined: Jun 2015
Posts: 193
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From: Ohio
7178 main caps?
Does anyone know if these came on 350s in 1968 or just on 327s? All the info online indicates these were 327 mains. I have an engine that the seller claimed was a 67 327. The numbers and letters (HH) on the front stamp pad indicate that it is a 300hp 350 from a 1969 full size chevy model. The rear casting is a 1968 only 3914678 block. This would indicate a block made in 1968 for a 69 model. However, I used an inspection camera through the oil pan drain hole, and it has 7178 main caps. All the info I have found is that these were 327 caps both in small and medium size journal. I cant see the date code on the passenger backside of the block. So back to my original question: Did 350s in 1968 come with 7178 main caps? I am ok either way, and bought the vehicle assuming it was the 350 engine. It also has 305 HO heads (puke) so I cant go off the head castings for any clues.
