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Does anyone know what can be used for water jacket filler in an aluminum block? I know Hardblok says it has been sucessfully used in an aluminum block application but was wondering if anyone has used something else. This is for an all out drag motor using lots of nitrous. Just want to do a 1/2 pour to help keep things from moving around too much. Thanks
 

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Epoxy, but the block would have to be new and spotless for it to adhere. Very expensive to do when you look at the price of a capable adhesive.

Hydro Seal.
 

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Thanks

Thanks for the reply 4 Jaw. I have been told that epoxy would work but wanted some more input. Devcon was recommended to me but I am not sure which of their products would work the best. I am able to buy Devcon local.

Devcon
 
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