Engine - Cylinder Heads - Cylinder Head Assembly

From GM Performance - This is a cast cylinder head assembly used on 285 hp 350 engine (P/N 12353641). This complete cylinder head assembly includes 1.94 inch intake valves, 1.50 inch exhaust valves, valve springs (P/N 3901068) and valve spring caps (P/N 14003978). Technical Notes: This cylinder head has 64cc chambers. The cast number for this head is P/N 14101083 or 14096217. This cylinder head has 1987 and later inlet manifold bolt pattern. The center two bolts are at 72 degree angle.