The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Power coating in the engine block lifter vally?

**jocko** · 10-13-2018, 10:13 PM

Glyptal is the only paint I’ve ever heard of being used in the lifter valley.
The reason has always been to increase drainage in the lifter valley.
Personally, I never really believed drainage, or speed of drainage, was anything that needed to be improved upon - especially in a street motor. If there is no paint in the lifter valley, it can never chip off and ruin your day. Or, maybe better put - if it ain’t broke, don’t fix it. I would not powder coat or paint any internal engine surface. Deburring the drainage holes and stuff like that, on the other hand, is time well spent before machining (just my opinion).

How has powder coat proven to last on engine blocks? Interesting approach (for the outside of the block anyway)

10-13-2018, 10:13 PM	#7
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 18,001	Re: Power coating in the engine block lifter vally? Glyptal is the only paint I’ve ever heard of being used in the lifter valley. The reason has always been to increase drainage in the lifter valley. Personally, I never really believed drainage, or speed of drainage, was anything that needed to be improved upon - especially in a street motor. If there is no paint in the lifter valley, it can never chip off and ruin your day. Or, maybe better put - if it ain’t broke, don’t fix it. I would not powder coat or paint any internal engine surface. Deburring the drainage holes and stuff like that, on the other hand, is time well spent before machining (just my opinion). How has powder coat proven to last on engine blocks? Interesting approach (for the outside of the block anyway)