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mre ls7 lightening 1MRE is proud to announce added progress to the LS Late Model packages. We are now offering a super light LS7 Late Model engine weighing only 348 lbs! When designing an engine package, multiple criteria have to be met. The four things that stand out in our mind are: performance and driveability, reliability, cost, and of course the overall weight of the engine. Our LS7 without any work is not considered a heavy engine. Our baseline LS7 weighs 376-377 lbs.

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