Polishing Elderbrock heads

3

36 CS

Senior Member
I have some Elderbrock heads that I would like to polish. Has anyone done this , if so would you share any info, short cuts, tips a do it yourself method that worked for you. I know it would be better to let a pro do it, however since I a paraplegic I get enjoyment from doing the jobs that I feel I can physically try. Thanks for your help.
 
Well, there are no short-cuts or easy methods. I start with sandpaper and gradually change to higher numbers until I get a really nice finish with grade 1000 and then 2000. Then the buffing begins. I use white rouge before the final finish with Mothers.
 
JWL said:
Well, there are no short-cuts or easy methods. I start with sandpaper and gradually change to higher numbers until I get a really nice finish with grade 1000 and then 2000. Then the buffing begins. I use white rouge before the final finish with Mothers.
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Never thought of starting off with sandpaper. Makes sense. I always thought they hit with different grit rouge or whatever it is called.

I may try the sandpaper method and have a go at polishing myself.
 
Are they new heads or older heads. Ive found that the new heads have a real course texter all over and seem to be a harder alluminum. If they are the new heads i start with 120 grit go up to about 6-800 grit than use a Tripoli compound than a white rouge compound. Make sure u use the correct wheel with the compound you are using and dont mix compounds one the same wheel. Eastwood sells a nice starter kit with a video.

 
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Thanks guys for your help. I just need to put out some elbow grease and a lot of it. Hey I certainly have more time than money. Thanks again.
 
I am trying to polish the edges and top of fins on a set of new 8ba Offenhausers and can not believe how rough and scratched the housing is. I hope your Edelbrocks are better.
 
Guys I have done a lot of heads on the blower motors I build. I find the quick way to get the surface ready for polishing is on the outside edges of the heads to take a DA sander and put it in the lock position and use 6 inch DA paper. If they are course use 120 then 220 then 320. As the paper starts to ware it will start to polish. Do not move on with the finer paper until you have removed all of the marks and starches. When you get to the 320 as it wares it really starts to polish. You can also use this to do the tops of the fins. Down in the fins you will need to use tapered sanding rolls 1/4 inch by 1 1/2inch with a 1/8 inch mandrel hole. One place you can get these is MSC You will need the mandrel and three grits of 80, 120, 220.. The mandrel is used with a die air grinder. This saves a lot of time before you start to polish.
 
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