Hello Ratsun.
I have for sale an L18 motor with a single weber down draft and 4 speed. I will also include a 280zx (unclear on year) 5 speed which just needs a bell housing. The L18 has petronics, new flywheel, and new clutch. I recently cleaned up the head, but didn't get to the block. There are no leaks on this motor, but it does show its 40 years of age. It was pulled from a 620 truck running strong to put in my 510. Long very relate-able story short, ran out of money and was never able to finish the project. I am selling everything, the motor and trannies for 500 firm. If you want to buy the 5 speed separate I will sell it for 200. I will also sell the weber down draft for 150 separate. Parts are located in San Ramon California.
Thank you for your time,
-Erik
510-590-8575