.com Balancers Timing Complete Heads S/R Small Block Chevy Included in ... with undercut stems and swirl-polished heads), ring and band valve seals, valve ... with undercut stems and swirl-polished heads), ring and band-style valve seals, 1. ... with undercut stems and swirl-polished heads), ring and band valve seals, valve ... with undercut stems and swirl-polished heads), ring band sytle valve seals, 1.250" ... steel valves with swirl-polished heads), ring band style valve seals, 1.550" ... . Part # Material Intake Chamber Spring Spec's Max Runner Volume Type/Volume Lift ... than stock required $22.99 ea. S/R 2.9 Ford V6 Included in Assembly: OEM ... included with all external dampers. All Ford dampers have three sets of timing marks ... 99 80006 6.4" Damper for '79 earlier SB Ford (28.4 oz. in ... 80007 6.4" Damper for '81 later 5.0L SB Ford (50 oz. in ...