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Hello all....My name is Austin and I have so many questions! So, I'm sorry if some or most of this has been covered but there are 500+ pages of threads just talking about L28's and have not found what I'm looking for, so... I'm gonna had another! I recently acquired a 1973 Datsun 240z with the original L24 & 4speed. I had a stock long block rebuild of the L24 quoted by a shop near me, which came out to be roughly $5000 ($1700 in parts). Which is more than I want to pay for a stock rebuild (150hp maybe). So I have decided to entertain the possibility of an L28 build instead. But because I am so new to the Datsun universe / engine builds in general, it is becoming difficult to see the start point, let alone the end point of this project. I would very much like to see some (all inclusive) comments. Meaning, builds that people have done before and are happy with that include as much detail as possible. Sort of a one stop shop for people looking to build an L28. Keep in mind, I might not understand all of it. So in writing your comments, please keep them simple. I'd greatly appreciate it! 😊 The goal: * 250-350 HP * 11:1 CR ** A street performance car | Occasional track day car ** My Questions: 1: Has anyone bought from California Datsun ?? https://www.californiadatsun.com/long-block-short-block-engines/datsun-240z-280z-l28-n42-head-l28-flat-pistons-engine.html * I found this and thought this could be a good starting point for an L28 build. What are your thoughts? Anything I should be concerned about? 2: Build options! I know a lot of L28 builds are out there but lets assume that I begin with the engine listed above. What are the options to push that to 250-300 HP with 11:1 compression? Is adding compression from 10:1 to 11:1 something even worth worrying about? * Please include all details! Thank you all! I greatly appreciate it!