Here is a little quick description of each harness:
This Wiring Specialties Engine Harness is designed for a direct drop-in installation into any year DATSUN with an S14 SR20DET engine. Each Pre Made Harness is built to order and will save you time, improve engine performance, give your engine bay a factory look and comes equipped with our Turn Key Start-Up Guarantee!
Suitable for the following Datsun's: 1200, 1500, 1600, 2000, 510, 240Z, 260Z, 280Z, 280ZX
If you have any questions or comments, don't hesitate to post!
![Image](http://site.wiringspecialties.com/images/S13toDatsun/6808160409_3f756b15d3_o.jpg)
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S13 SR20:
S14 SR20: