AFD custom stainless valves - 2.190"/1.650” - full set

• Custom made to suit 351c 4V heads 
• Fits directly into AFD  SP4V alloy heads
• 21-4n stainless
• 1 piece
• Standard length intake 5.250"/exhaust 5.050" long
• Single lock groove
• Chromed stems and micro polished
• Hardened tips
• Under cut stems
• Swirl polished head
• 1.650” x 11/32” Exhaust valves have a 22.5 degree tulip to stabilize exhaust flow averages across the lift range
• These valves are high quality items at a fraction of the big brand cost
• Price is for a full set of 16 valves
• custom manufactured in South America