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Hex Head Black Oxidefits SB Chev Vortec 305-350
Machined out of aircraft-grade billet aluminum alloy Precision-coated with black anodizing Can be used with E85 and alcohol
AF139-06-08S
83-1000BLK
5 Volts up to 2300 HP - naturally aspirated up to 1700 HP - forced air induction ORB-12 inlet port and ORB-10 outlet port For EFI applications use regulator P/N 13110
Main Bolt Kit, 2-Bolt Main Pro Series AR260-5401 Product:fits Subaru EJ20,22,25 SOHC/DOHC Crankcase Through Bolt Kit Hex Head Black Oxidefits SBSUBARU EJ20 22 25 SOHC DOHC CRANK CASE THRU BOLT KIT 2 BLT ARP 260 5401 AR260 5401 260 5401 Far superior to any other main bolt kit offered for use in competition engines, ARP main bolts are designed to meet the exacting standards and demands of professional engine builders. Forged from 8740 chrome moly, all bolts feature generous under head radius and rolled threads for the utmost reliability. The threads are rolled after heat treating, which makes
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