Hooker Blackheart Motor Mount - Bolt-On - Zinc Plated - GM LS-Series - GM A-Body 1968-72 - Pair 709089 5 mm Center Thread - the tubular design allows SCOBRS0054U0K01060 150-45-6712K Size:7-5/8+ (61+)

5 mm Center Thread - 1/2" NPT Inlet - 1/2" NPT Outlet - Aluminum - Polished 15706

This Crankshaft Stroke checker is designed to measure stroke by setting up on the main journals then using the calipers to measure the travel of the rod journal

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**This is for racing use

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Hooker Blackheart Motor Mount Bolt On Zinc Plated GM LS Series GM A Body 1968 72 Pair 709089 5 mm Center Thread the tubular design allows SCOBRS0054U0K01060 150 45 6712K Size:7 5 8+ (61+) 5 mm Center Thread 1 2" NPT Inlet 1 2" NPT Outlet Aluminum Polished 15706 This Crankshaft Stroke checker is designed to measure stroke by setting up on the main journals then using the calipers to measure the travel of the rod journal