502 540 Big Block Engine Comparison 502 Dyno Test
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On the dyno at JMS Racing Engines, we finalized the build by utilizing a Weiand intake manifold (oval port) and a Holley 950 carburetor. Our initial baseline runs netted us exactly what we had expected. Our freshened ZZ502 made 514 hp at 5,500 rpm with 579 lb-ft at 3,200 rpm. View Related Article
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