Indmar Marine Boat Crate Engines: Superior Performance / Best Price: 800-942-7800. X QUALITY REMANUFACTURED CRATE ENGINES SINCE 1975 DOMESTIC FOREIGN REPLACEMENT RESTORATION CUSTOMIZATION. Great engine we bought a 5.7, the only company that has a 7 year 100,000 mile warranty. I would recommend this company to anyone that wants a top of the.. About Our Marine Base Engines. New Marine Engines 4 Less Units. Beginning in 2015, GM began to discontinue many of their marine engines. This includes the 3.0L and 4.3L in 2015, the 5.0L in 2016, and the 7.4L and 8.2L in 2022. To date (March 2023), GM only produces the Vortec 5.7L marine engine. Because of this, we began producing our own new.
5.7 GM SERVICE BASED VORTEC MARINE ENGINE. Indmar Part # 021039-1030. The Indmar 5.7L "Service Base" engine includes the following (when ordered under the above part number). Block (with all internal engine components) Water Circulating Pump Oil Pan . Harmonic Balancer Timing Chain Cover.. Indmar 5.7L MPFI Indmar Assault 325 Malibu 5.7L LCR MasterCraft 5.7L RTP-1 Indmar 5.7L HO* Indmar 5.7LAssault 340* Malibu Monsoon* MasterCraft MCX* Malibu Anniversary Edition (LS7) 6.0L Multi Port Fuel Injected MasterCraft 6.0L LY6 6.2L Multi Port Fuel Injected Malibu 383 Hammerhead* 7.4 Liter Engines Indmar 454 Carbureted 8.1L Engines Indmar 8.