When it comes to building and customizing our muscle cars, every little bit helps. When that little bit amounts to a bigger chunk, then it becomes even better, and MSD Performance is offering up some of those bigger chunks for seven weeks with their Lucky 7 promotion. For seven weeks, when you purchase a selected MSD product from an authorized dealer, you get a selected free part along with your purchase.

As an added bonus, by submitting your rebate to MSD you’re automatically entered to win a trip for two to the 2013 SEMA trade show in Las Vegas this fall. That gives you seven chances to enter, and the more rebates you send in, the better your chances are. But you know what they say: you can’t win if you don’t enter, and you can’t get your free parts without sending in your rebate.

This week, MSD is offering up a free set of GM LS Coil Brackets (pn 8216) with the purchase of an MSD Atomic LS Master Kit. With the cool looks of the Atomic LS, the MSD coil brackets help improve the looks over the factory coil brackets.. MSD takes care of you in that regard with the fourth week of their Lucky 7 Rebates.

With all of the LS engine swaps being done on classic musclecars these days, MSD has brought their Atomic EFI kit to the LS platform to help facilitate these swaps. The Atomic LS Master Kit includes everything needed to get your LS engine up and running, including harness, sensors and the ECM.

With cutting edge technology, the Atomic LS kit puts the digital electronics in the fuel rail, with all harness for each bank plugging directly to the fuel rail. This makes for a convenient, easy to install package that gives you all of the functionality of the Atomic EFI, but you use the existing throttlebody and fuel injectors, and replace the fuel rails with the fuel rails included in the kit.

Also included with each kid is the handheld controller, power module, wide-band O2 sensor and -6 fuel fittings and crossover hose for the fuel rails. The eliminates the need for installing the factory ECM and harness, as the complete harness and ECM are mounted directly to the engine, with the controller being hard-wired as a remote controller.

And if you’ve followed the LS swap trend, you’ve likely noticed that the factory stamped coil brackets are slightly unappealing. Function, yes, form – not so much. So MSD is proud to provide a free set of LS coil brackets with the purchase of the Atomic LS Master Kit included in this, the fourth week, of MSD’s Lucky 7 Rebate Program. But just as we mentioned in the first week’s offer from MSD, you have to send in your rebate in order to get your free LS Coil Bracket kit, and also to be automatically entered in the SEMA 2013 drawing.

Do you want to know what the Lucky 7 offer is for next week? We want to know, too, but unfortunately MSD isn’t talking. Just like us, you’ll have to wait until next week to find out, and we’ll bring it to you as soon as we find out! So check back with us each week and we’ll keep you in the loop! And check out more MSD products at their web site.