The 302, 327 and 350 used 4" bores. The first 4" bore motor was the small journal 327 appearing in 1962. The last small block Chevrolet to use the 4" bore was made in 2002.
The 302, 327 and 350 used 4" bores. The first 4" bore motor was the small journal 327 appearing in 1962. The last small block Chevrolet to use the 4" bore was made in 2002.