If your looking for a motor and trans for this L30/M20 combination, I may have it. I think My 69 has a donor engine tranny from a 67/68 L30/M20. It looks to be the 275hp 327 Saginaw combination. I have not checked date codes or dug into the other stampings. Engine is in good condition, but has not been run in maybe 20 years. It has been inside so it's still pretty clean. Has the oil filler tube in the manifold and the canister filter.
I would like to put a 396 in the car since it has all the SS badges, grill, hood, etc and make it a BB SS clone.
I do still have a quesiton from when I was lookign into the combinaton. Was the L30 275HP 327 available with other trannys in the Camaro? I see a ton of the 210hp 327s that have been upgaded, but not to many of the real L30s in Camaros. One article I read estimated that in 67/68, less that 15k were produced? GM didnt' track this option, so there is no way to know for sure.