I have a 421 engine that came out of a bonniville. Engine had less than 48,000 miles on it when sat up. Block and rotating assy only. Have heads, four bbl intake, or 3x2 bbl intake for extra price. https://web-cars.com/phorum//read.php?3,43792,43792#msg-43792 Thu, 13 Aug 2026 17:56:05 +0000 Phorum 5.2.23 https://web-cars.com/phorum//read.php?3,43792,43792#msg-43792 https://web-cars.com/phorum//read.php?3,43792,43792#msg-43792 Leslie 1 Pontiac GTO Forum Sun, 25 Mar 2012 17:52:10 +0000