Harmonic Damper for Goodwrench 350 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

85C1500 · 02-16-2007, 02:39 AM

I am installing a new Goodwrench 350. The harmonic damper off my original 305 is galled in the sealing area so I am going to replace it. Also, the original timing marks on the 305 chain cover are in the 12:00 position which is different than the bolt on timing marks that came with the new 350.

The local NAPA store can get me a new harmonic damper that fits a 77-86 350. LMC also sells a 350 damper for 77-86. Is that the right harmonic damper? I want to make sure the TDC/timing indicator matches correctly with the damper.

02-16-2007, 02:39 AM	#1
85C1500 Registered User Join Date: Sep 2006 Location: alaska Posts: 16	Harmonic Damper for Goodwrench 350 I am installing a new Goodwrench 350. The harmonic damper off my original 305 is galled in the sealing area so I am going to replace it. Also, the original timing marks on the 305 chain cover are in the 12:00 position which is different than the bolt on timing marks that came with the new 350. The local NAPA store can get me a new harmonic damper that fits a 77-86 350. LMC also sells a 350 damper for 77-86. Is that the right harmonic damper? I want to make sure the TDC/timing indicator matches correctly with the damper.



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