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Dwight Southerland · 01-10-2009, 08:59 AM

A lot of those blocks were used as replacement pieces and found in HD trucks in '66 & '67. The description on the eBay is accurate for the machined crankcase, longer main cap bolts and spin on filter. I had two when I raced the '67 Z28 and they were more "solid" than any other block I evaluated. The two I had also had nodular iron main caps.

01-10-2009, 08:59 AM	#4
Dwight Southerland VIP Member Join Date: Dec 2001 Location: Arkansas - In the middle of everything. Posts: 1,999 Likes: 63 Liked 772 Times in 192 Posts	Re: SBC 327 Block casting number 3959512 A lot of those blocks were used as replacement pieces and found in HD trucks in '66 & '67. The description on the eBay is accurate for the machined crankcase, longer main cap bolts and spin on filter. I had two when I raced the '67 Z28 and they were more "solid" than any other block I evaluated. The two I had also had nodular iron main caps.