M38 F-Head question...

dayboy42 · Post by **dayboy42** » Mon Sep 19, 2011 7:41 pm

I was working on the cylinder head for my M38 that was delivered on 4/52. I noticed that it does not have a bypass hose outlet on the front which I believe is supposed to be on all M38 engines. It does have a water outlet on the top rear of the head that has a plug in it.

This is what is exactly on the top of the head for info.

3/12 Firing Order 1-3-4-2
800376
2 6.48 WILLYS
JEEP

Unfortantly the serial number on my block I believe has been machined off but someone stamped 19711 with a star symbol after that on the front of my head and on the block. Any ideas? I know this block has been rebuilt for sure because it has .060" pistons installed.

Just wondering if this is a rebuilt military engine off of something else like a gen set or something....

I hope to have get more info off the block when I get it out. Any info appreciated! Thanks!

Post by **wesk** » Mon Sep 19, 2011 8:21 pm

My guess would be a CJ3A engine which used the same head casting without the bypass port drilled in it.

magnum · Post by **magnum** » Tue Sep 20, 2011 3:40 pm

Wes,

What if the engine has an FA stamped at the beginning of the number above the water pump?

Thanks

Post by **wesk** » Tue Sep 20, 2011 9:48 pm