INTAKE VALVES - SINGLE GROOVE (SOLD INDIVIDUALLY) PART NUMBER APPLICATION HEADDIAMETER TIPLENGTH TOTALLENGTH STEMDIAMETER GROOVETYPE VALVEWEIGHT DESCRIPTION M-6507-J302* GT-40 Aluminum HeadM-6049-Y302/Y303/X302//X303/X304/X305/X306/X307 1.940" 0.383" 5.078" 11/32" Square Cut 113.2 Premium stainless steel, swirl polished, under-cut stem. M-6507-A304* M-6049-Z304/Z304D/Z304DA 2.020" 0.290" 5.340" 11/32" Square Cut 122 Premium stainless steel and swirl polished. M-6507-D3047* M-6049-Z304DA7 2.020" 0.325" 5.34" 7 MM Bead lock 103.0 grams Premium stainless steel and swirl polished. M-6507-A351* M-6049-N351/R351 2.020" 0.250" 5.140" 11/32" Square Cut NA Premium stainless steel. M-6507-B429* 429/460 WedgeSCJ Aluminum M-6049-SCJ/SCJA/SCJB 2.200" 0.250" 5.265" 11/32" Square Cut 143.7 grams Premium stainless