327 to crate 350 damper - Team Camaro Tech
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post #1 of 2 (permalink) Old Mar 25th, 08, 10:13 AM Thread Starter
Senior Tech
Join Date: Jul 2005
Location: Southern Indiana
Posts: 292
327 to crate 350 damper

Hey guys, I think I've decided to go with a crate engine for my build. I'm going to make the crate engine look like the 327/275 L30 set up, and I've already got a bunch of the parts.

My concern is the vibration damper. I don't have one of them yet, so I'll need to get one. GM offers part #12551537 as a damper for their crate engine, and it's called a "clearance problem" damper. It is 6 3/4" diameter, 2 3/8" total "thickness" (snout and all) and the snout only is roughly 1 1/8" of it.

Does anyone have a confirmed original 327/275 damper they could look at and maybe measure, give me the part # on it, and possibly verify for me this GM damper will work as a replacement? Has anyone ever used one of these smaller GM dampers on a crate? Would I be better off trying to find an original 327/275 damper and use it?

I'm concerned about the new GM damper messing with my pulley alignment on everything else I've got for the build. Thanks in advance, Brian

'68 RS Vert
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post #2 of 2 (permalink) Old Mar 25th, 08, 11:47 AM
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Join Date: Jun 2001
Location: Rochester Mn
Posts: 7,749
Re: 327 to crate 350 damper

If you used an original 327 dampner it would most likely be for a short water-pump set up. I am not sure if they changed the thickness of them, when they went to the 8" balancer or not.

69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1
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