try Motorsport Auto I get all my z parts from them. they have a great catalog. I am not sure if they have the kit but they have everything else incase you need other parts. <a href="https://www.motorsportauto.com" target="_blank">https://www.motorsportauto.com</a>
Found this Q/A at the site:
I just purchased a 78 Datsun 280Z. I have been thinking about a V-8 conversion. Any info you can give me on the subject will be helpful?
First of all, we have the parts you will need to put a small block chevrolet in your 70-83 Z car. The question is whether or not it is right for you. Understand a typical 350 and 700R4 transmission add around 100-150 pounds to the front of your Z car. There are many ways to lower this of course, from aluminum parts to moving the battery, to bring the car back towards neutral. If you leave it heavier in the front, you will be trading horsepower for handling and track performance. It depends on how you envision using your Z. If you want to drag race, for instance, then the V8 swap would be tough to beat. If you would prefer a more traditional race profile for your Z, then either the straight 6 would be better, or a well done V8 setup with multiple weight lowering changes. Personally, I plan on having both a V8 Z, and one set up for track racing. Who said you can't have your cake and eat it too!
[ July 24, 2002: Message edited by: Mertz ]</p>