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#1
03-14-2007, 05:49 PM
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Helicoil BBC Exhaust Manifold Smog Holes?
Good morning all,
The smog hole threads on my manifolds are shot. Otherwise the manifolds are in nice shape with the correct dates. Am I better off sourcing another set for my 1972 454 or finding someone to helicoil all eight holes? Does anyone know of a reputable mechanic to refer me to? Approximately how much should this job run me? Or perhaps someone has a set of manifolds 3989310 & 3989343 dated early 1972. Thanks for your help! Stan 1972 Chevelle SS 454 Convertible "W" code
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Stan https://www.facebook.com/pages/Dream...47310092008897 www.DreamWorksMuscleCars.US 1972 Chevelle SS454 Convertible Golden Brown (57), "W" code 1972 Olds 442 496 / M22Z Convertible Flame Orange (65) 
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