Long Block Engine GM LS 427 ci. (7.0L) ProSeries Long Block 605 HP/565 ft.lbs. TQ New Cast Iron Block New LS3 Aluminum Cylinder Heads Compression Ratio: 11:1 Does Not Include Engine Controller (ECM)
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![Blueprint Engines PSLS42730CT: PSLS42730CT GM LS 427 ci. (7.0L) ProSeries Long Block [605 HP]](/web/image/product.product/80282/image_1024/%5BMLL-PSLS42730CT%5D%20Blueprint%20Engines%20PSLS42730CT:%20PSLS42730CT%20GM%20LS%20427%20ci.%20%287.0L%29%20ProSeries%20Long%20Block%20%5B605%20HP%5D?unique=25fc039)
![Blueprint Engines PSLS42730CT: PSLS42730CT GM LS 427 ci. (7.0L) ProSeries Long Block [605 HP]](/web/image/product.product/80282/image_128/%5BMLL-PSLS42730CT%5D%20Blueprint%20Engines%20PSLS42730CT:%20PSLS42730CT%20GM%20LS%20427%20ci.%20%287.0L%29%20ProSeries%20Long%20Block%20%5B605%20HP%5D?unique=25fc039)
