[Cobracar]

I feel sure there is somebody out there that has tried this. What is your opinion and is the benefit of improve oil drain back worth the risk of contamination if the stuff comes off.

I have some of the stuff and it suggests that it be cured at a relative high temperature. If you used, it how would you get the block hot enough to cure the stuff.

[mustang66maniac]

suposedly, you really don't gain that much by painting the lifter valley. Unless you have a high rpm engine and a big oil pump, its really not going to make a difference.

[ January 22, 2003: Message edited by: mustang66maniac ]</p>

[48fordnut]

all of the high perf. engs i build and use have this treatment. first i polish the area to be painted , this includes radius the holes and smoothing any rough spots. i have not had any peeling, or the material come off in any way. of course you must prep the surface, no oil, water, or any other contaminant. it works for me. you probably could not find any improvment on the dyno.

[4 Jaw Chuck]

You should bake the block to get it clean enough, I doubt there is any good reason to paint any interior engine block parts, there is nothing to gain?

[Airport Towing]

I do this on any SBC motor I build or rebuild.
I use a heat lamp to bake the glyptol on. Usually A couple of hours will do nicely. I have yet to see any of it come off, as long as the surface is clean and free from any oil. I do it because I usually plug up the drain back holes over the cam shaft and force the oil to drain back through the front and rear openings in the lifter pan, where I put screens to catch any FOD (Foreign Object Debris). The glyptol does indeed help with drainback. It isn't about gaining horsepower as much as keeping oil from draining back onto the rotating assembly which will cost some horsepower. :-)

[Cobracar]

Thanks to all for your input!

[NAIRB]

Painting the interior of any block with Glyptol will aid in oil drainback to an extent, it makes your engine look nice for pictures, but I think the best part about the glyptol is that if applied properly, it will "seal" the porous surface of the cast iron. No matter how hard you try to clean a block there is always crap in the pores of the block. The paint seals it off. I use it mostly because it looks good to customers when they walk in.

[ January 22, 2003: Message edited by: NAIRB ]</p>