My thoughts are the bypass served two purposes, first it helps with hot spots and second it helps get the engine uniformly up to operating tempature as fast as possible, most of your wear happens when the engine is cold.

My 0.02 cents...

Mike B smile

Mike Boteler

1956 Chevy 3100 Resto Rod
1952 Willys M38 Army Jeep
1983 Jeep CJ7 Laredo
1984 Jeep CJ7
+++++
Silver Spring, MD