Head Gaskets
I was reading the article and why would you make the holes in the head gasket so much smaller than the passages in the block and head?
Also wouldn't make the engine run cooler with increased head gasket passages?
Wouldn't you drill them out to match the ports in the block and heads?
1995 Chevy 2500, 6.5L Diesel mostly stock 234,000 miles. Changed the water pump to HO WP, deleted the vacuum pump and added a mechanical wastegate controller made by me with info from others on the forum.