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Return to Parts List Category : A- Small Block "LA" : Fasteners : Cylinder Head : Studs, W5 & W7 ARP 144-4203 SB W5/W7 OR MAG OEM & ED HD STD KIT 12PT 12 PT $212.99 Fits small block LA with W5-W7 heads and 5.2L/5.9L with factory or Edelbrock Magnum heads. 12pt Nuts