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Distributor hold down finish.
#3128246
03/10/23 07:53 PM
03/10/23 07:53 PM
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Joined: May 2003
Posts: 1,196 imperial mo.
stickman
OP
super stock
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OP
super stock
Joined: May 2003
Posts: 1,196
imperial mo.
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What kind of finish should be on the distributor hold down on a 1970 440. Thanks.
YOU CAN`T RUN WITH THE BIG DOGS IF YOU NEVER LEAVE THE PORCH.
EB5 70 U Code RT/SE Shaker Challenger
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Re: Distributor hold down finish.
[Re: topside]
#3128312
03/11/23 03:28 AM
03/11/23 03:28 AM
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Joined: Mar 2011
Posts: 1,661 Cut and Shoot, TX
kentj340
top fuel
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top fuel
Joined: Mar 2011
Posts: 1,661
Cut and Shoot, TX
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Just so people don't get confused, my '69 340 distributor hold down is copper plated steel with a blackened finish. Birchwood-Casey, maker of gun bluing, sells a brass blackener that also blackens copper. It's easy to plate copper with some battery current and a copper penny or Romex.
One could guess the copper plate was to make sure there's a good ground between the intake manifold and the distributor. And in addition, for good measure, the intake manifold to head bolts were zinc plated with yellow chromate, rather than phosphated, likely to make a better path to the negative battery cable attached to one of the heads. And maybe the battery negative cable was bolted to the head rather than some place else specifically to make as direct an electrical connection to the distributor as possible.
In the photo, most of the original blackening is gone due to too aggressive cleaning and scrubbing. Oops.
If you don't see two dolphins, you need a vacation.
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