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MSD Digital GM High Energy Module with Rev Limiter Part # 83647



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MSD Digital GM High Energy Module with Rev Limiter

Part # 83647

MSD 83647 HIGH PERFORMANCE HEI MODULE photo 49767858-551d-427d-b17e-344f25d7bc51.jpg

This MSD Digital GM high-energy module with a rev limiter allows you to adjust the rpm limit between 5,000 and 9,000 rpm. A true high-performance module built for HEI distributors, it produces 50 percent higher coil drive current than the stock module. This saturates the coil faster, which gives you more spark energy at top speeds. The results are increased horsepower and rpm range, and improved starting. When used with MSD's HEI coil, this plug-in module creates a potent high-energy spark to 9,000 rpm. MSD's GM HEI modules replace all 4-pin modules used in HEI distributors with a vacuum advance canister. They can be used with factory, aftermarket, or MSD HEI distributors.

Module pin quantity = 4. Wiring harness included.

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