AFR Eliminator Street Cylinder Head - Assembled - 2.050 / 1.600 in Valves - 195 cc Intake - 65 cc Chamber - 1.290 in Springs - Angle Plug - Pair R07C15W38 This is common on circle

This is common on circle track 23 ° high-port

GMC: Sierra 1500 99 - 06 4

20 mm Dowels Included

2007-2009 GMC Yukon XL 2500

and the reverse lockout mechanism eliminates the chance of transmission damage from accidentally shifting into reverse

AFR Eliminator Street Cylinder Head - Assembled - 2.050 / 1.600 in Valves - 195 cc Intake - 65 cc Chamber - 1.290 in Springs - Angle Plug - Pair R07C15W38 This is common on circleAFR Emissions Legal (versions from 1969 94 with heat riser, CARB EO #D 250 2), 195cc intake port small block Chevy cylinder heads are available in Choice of straight or L98 angle plug versions. These cylinder heads feature a 65cc or 75cc combustion chamber with a 64cc exhaust port and a 3 4'' thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight 8mm diameter stem, 2. 050'' (comp package has 2. 080'') intake valve