Lifter valley paint and block paint
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That Glyptal idea was first published in "How to Hotrod Small Block Chevy's" back
in the seventies. It's hung around ever since. You don't need to go to all that trouble. Just deburr the valley with a "tootsie roll". It will work just as good without the risk of any paint coming off. Pay attention to the drain back holes.
This is something that really should have been done before machining and cleaning the block.
in the seventies. It's hung around ever since. You don't need to go to all that trouble. Just deburr the valley with a "tootsie roll". It will work just as good without the risk of any paint coming off. Pay attention to the drain back holes.
This is something that really should have been done before machining and cleaning the block.
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2,350 Posts
I say no paint inside. just another thing to worry about coming loose. If your cam bearings are removed I say go for grinding and realy get in and under those oil returns in the rear. Make sure all left over flash and casting sand is gone. If you have cam bearings installed already leave the grinder in your tool box
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9,228 Posts
As for engine paint, I've found using the same basecoat/clearcoat paint as on the car body works extremely well providing it has a good clean prep.
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10,210 Posts
It is sorta old school to paint the lifter valleys it has to be super clear or you risk big strips of paint going off and pluging a lifter gallery or pump pickup....BUT there are places that still do it...PAW for one uses Rustolum on the inside of the motors they do...
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13,245 Posts
I was sort of thinking out loud in this thread. After researching this some more and seeing your replies, I'm not going to paint the lifter valley. I'm gonna call the machine shop this morning and see if the cam bearings are in yet. If not, I'll just have them do the grinding for the oil return paths since the block is there. Shouldn't cost much at all.
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2,350 Posts
DriveWFO said:What about painting the pistons and camshaft
Smokey Yunick in his "Power Secrets" books says to paint the piston tops with VHT high temp flat white.. Ive never done it but Im sure it would have a short term effect till it went away out the exhaust valve.
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3,862 Posts
There are some high tech coatings out there for piston sidewalls and tops that are very effective. Probably overkill for this application not, to mention the costs involved.
Bruce
(keep up the 383 posts as this is my next project after the big blocks are gone)
Bruce
(keep up the 383 posts as this is my next project after the big blocks are gone)
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9,228 Posts
Coating pistons, valve springs, etc. is fairly common these days. Some coatings absorb oil, some repel, etc...just depends on what component is used for. It's not that expensive to do but their seems to be questionable paybacks for the average user.
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