Coolant Leak

[HuD 91gt]

Looks like I have a coolant leak between the head and the block, right near the back of the engine, close to the transmission.

I'm assuming this is clearly a head gasket? Not having much luck with this car so far. The oil is still clear (Not milky).

Edit: Sorry. the photo is upside down, I can't figure out why. It's upright on my computer.

[Zed Head]

I had a similar leak, bit on the other side. After I removed the engine (put another in), I removed the head and all of the other sealing areas were fine. It only leaked from a coolant passage outward.

Rotated your picture for you.

[HuD 91gt]

Thanks for the picture rotation!

Good to know it's possible it could only be a coolant leak. I guess the only real way to check is to do a compression test?

Is there any other heads I could swap on here that won't drastically reduce my compression ratio, yet increase performance a little over my E88? I can't seem to find an engine calculator that works for the L24 block.

If a HG replacement is required, it would be nice to be able to swap on a useable/straight head right away and have the car on the road again the same day.

[Zed Head]

If a HG replacement is required, it would be nice to be able to swap on a useable/straight head right away and have the car on the road again the same day.

What engine/car are you working with?

[HuD 91gt]

1971 240z L24 w/E88 head. Stock, SU carbs