Catalog: GM Performance Parts 2006 Catalog
Company/Brand: GM Parts Direct
y block casting numbers in GM Performance Parts 2006 Catalog by GM Parts Direct
insure a secure seal between the engine block and cylinder heads. Gasket packages ... specified. Order two per engine. Big-block cylinder head gaskets are available in ... head gasket for Mark IV 1965-1990 big-blocks with 4.440" cylinder bores. Compressed ... IV (1965-1990) engines only. 211 BIG BLOCK HEADS Part Casting Port Port Valve ... 325 Rect BBC 118 2.18 1.88 Square Std Y Screw-in Ass'd 2925's 12562925 Gen 5,6 ... 325 Rect BBC 118 2.18 1.88 Square Std Y Screw-in 7/16 accy holes 12562926 Gen 5 ... 325 Rect BBC 118 2.18 1.88 Square Std Y Screw-in 3/8 accy holes 12552888 Gen 5, ... - Round BBC 118 2.07 1.72 Square Std Y Screw-in HT 502 head 12363390 Oval Alum ...
