Big block intake numbers
Instructor
Joined: Sep 2005
Posts: 180
Likes: 1
From what have seen and been told by the ls6 guru here in Michigan, all cars came with no numbers on the intake. The numbered intakes were over the counter parts. I would love to have anybody that has a numbered intake give us the date. I have 2 intakes, both dated December of 69. Remember they only made 188 ls6 cars plus 12 zr2's, they made over 3,000 ls6 chevelles in 1970 only. No ls6 or ls7 vettes in 70, and no ls6 chevelles in 71. The chevelle used steel closed chamber heads and the vette the open chamber 074 heads that came on the l88.
