S/S Exhaust Valve AFR7631-1 Product:Suit BB Chev, 1.880 Head, 5.450 OAL, 11/32" Stem Stainless Steel Billet Breather with

Stainless Steel Billet Breather with -12AN Female ThreadPolished Finish

90° Oil Block AdapterSuits GM LS Series with Front or Rear Sump

AF500-10-2MBLK

302 and 351 Windsor V8

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S/S Exhaust Valve AFR7631-1 Product:Suit BB Chev, 1.880 Head, 5.450 OAL, 11/32" Stem Stainless Steel Billet Breather withS S Exhaust ValveSuit BB Chev, 1. 880 Head, 5. 450 OAL, 11 32" Stem AFR7631 1 R7631 1 For over FORTY FIVE years Air Flow Research has been defining technological leadership in cylinder head manufacturing and flow dynamics. This complete commitment to performance has enabled Air Flow Research's cylinder heads to find themselves on the fastest race cars and the most powerful street machines in the country. As every engine builder will attest to, the