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| MM-18706R5 Long Block Assembly 18706R 5 |
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Remanufactured Pro Series
GM 7.4 Litre V/8 MARK-IV Block (Left-Hand Standard Rotation)
This longblock assembly includes new pistons, rings, bearings, marine gaskets, high-volume oil pump, stainless steel valves, heavy-duty valve springs, valve-keys, hydraulic lifters, camshaft, water-pump and marine block plugs. The cylinders are freshly bored & honed. Crankshaft is ground and polished. Connecting Rods are fully re-conditioned. To save change-out time we also include the valve-covers, front timing cover, oil-pan, oil-filter, break-in oil, hot testing, factory painted, and strapped firmly in our heavy-duty returnable container, and a core-return sheet with directions for the return trip!
NOW AVAILABLE: Up to an additional two years of Major Assembly Protection (MAP) on select new or remanufactured longblock engine assemblies. MAP Coverage follows the factory provided one-year warranty period from date of purchase. |
Replaces 1977-1992 GM 7.4L sterndrive and inboard marine engines with 2-piece rear-main seal and flat-tappets. Note: Inboard installations must use an inboard designed oil pan.
[2007 - Core Deposit $ 1200, Container $ 175, Bounty: $ 400 ]
To receive $ 175 for the container and up to $ 1200 core deposit refund, simply insert a copy of the dealerships original purchase invoice and the old longblock into the container and send it back. Shipping instructions to cover the freight charges are included. |
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| MM-87992R5 Long Block Assembly 87992R 5 |
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Remanufactured Pro-Series
GM 7.4 Litre V/8 MARK-IV Block (Right-Hand Opposite Rotation)
This longblock assembly includes new pistons, rings, bearings, marine gaskets, high-volume oil pump, stainless steel valves, heavy-duty valve springs, valve-keys, hydraulic lifters, camshaft, water-pump and marine block plugs. The cylinders are freshly bored & honed. Crankshaft is ground and polished. Connecting Rods are fully re-conditioned. To save change-out time we also include the valve-covers, front timing cover, oil-pan, oil-filter, break-in oil, hot testing, factory painted, and strapped firmly in our heavy-duty returnable container, and a core-return sheet with directions for the return trip!
NOW AVAILABLE: Up to an additional two years of Major Assembly Protection (MAP) on select new or remanufactured longblock engine assemblies. MAP Coverage follows the factory provided one-year warranty period from date of purchase. |
Replaces 1977-1992 GM 7.4L sterndrive and inboard marine engines with 2-piece rear-main seal and flat-tappets.
[2007 - Core Deposit $ 1200, Container $ 175, Bounty: $ 400 ]
To receive $ 175 for the container and up to $ 1200 core deposit refund, simply insert a copy of the dealerships original purchase invoice and the old longblock into the container and send it back. Shipping instructions to cover the freight charges are included. |
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| MM-806351R5 Long Block Assembly 806351R 5 |
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Remanufactured Pro-Series
GM 7.4 Litre V/8 GEN-V Block (Left-Hand Standard Rotation)
This longblock assembly includes new pistons, rings, bearings, marine gaskets, high-volume oil pump, stainless steel valves, heavy-duty valve springs, valve-keys, hydraulic lifters, camshaft, water-pump and marine block plugs. The cylinders are freshly bored & honed. Crankshaft is ground and polished. Connecting Rods are fully re-conditioned. To save change-out time we also include the valve-covers, front timing cover, oil-pan, oil-filter, break-in oil, hot testing, factory painted, and strapped firmly in our heavy-duty returnable container, and a core-return sheet with directions for the return trip!
NOW AVAILABLE: Up to an additional two years of Major Assembly Protection (MAP) on select new or remanufactured longblock engine assemblies. MAP Coverage follows the factory provided one-year warranty period from date of purchase. |
Replaces 1992-1996 GM 7.4L sterndrive and inboard marine engines with oval ports and flat-tappets.
[2007 - Core Deposit $ 1200, Container $ 175, Bounty: $ 400 ]
To receive $ 175 for the container and up to $ 1200 core deposit refund, simply insert a copy of the dealerships original purchase invoice and the old longblock into the container and send it back. Shipping instructions to cover the freight charges are included. |
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| MM-806352R5 Long Block Assembly 806352R 5 |
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Remanufactured Pro-Series
GM 454 MAGNUM V/8 GEN-V Block (Left-Hand Standard Rotation)
This longblock assembly includes new pistons, rings, bearings, marine gaskets, high-volume oil pump, stainless steel valves, heavy-duty valve springs, valve-keys, hydraulic lifters, camshaft, water-pump and marine block plugs. The cylinders are freshly bored & honed. Crankshaft is ground and polished. Connecting Rods are fully re-conditioned. To save change-out time we also include the valve-covers, front timing cover, oil-pan, oil-filter, break-in oil, hot testing, factory painted, and strapped firmly in our heavy-duty returnable container, and a core-return sheet with directions for the return trip!
NOW AVAILABLE: Up to an additional two years of Major Assembly Protection (MAP) on select new or remanufactured longblock engine assemblies. MAP Coverage follows the factory provided one-year warranty period from date of purchase. |
Replaces 1992-1996 GM 454-MAGNUM sterndrive engines with high-flow rectangle ports and flat-tappets.
[2007 - Core Deposit $ 1200, Container $ 175, Bounty: $ 400 ]
To receive $ 175 for the container and up to $ 1200 core deposit refund, simply insert a copy of the dealerships original purchase invoice and the old longblock into the container and send it back. Shipping instructions to cover the freight charges are included. |
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| MM-807739R5 Long Block Assembly 807739R 5 |
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Part Number listed as no longer available.
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Remanufactured Pro-Series
GM 7.4 Litre V/8 GEN-VI Block (Left-Hand Standard Rotation)
This longblock assembly includes new pistons, rings, bearings, marine gaskets, high-volume oil pump, stainless steel valves, heavy-duty valve springs, valve-keys, water-pump and marine block plugs. The cylinders are freshly bored & honed. Crankshaft is ground and polished. Roller cam, roller lifters, and connecting rods are fully re-conditioned. To save change-out time we also include the valve-covers, front timing cover, oil-pan, oil-filter, break-in oil, hot testing, factory painted, and strapped firmly in our heavy-duty returnable container, and a core-return sheet with directions for the return trip!
NOW AVAILABLE: Up to an additional two years of Major Assembly Protection (MAP) on select new or remanufactured longblock engine assemblies. MAP Coverage follows the factory provided one-year warranty period from date of purchase. |
Replaces 1996-1997 GM 7.4L sterndrive and inboard marine engines with oval ports and roller-lifters.
[2007 - Core Deposit $ 1200, Container $ 175, Bounty: $ 400 ]
To receive $ 175 for the container and up to $ 1200 core deposit refund, simply insert a copy of the dealerships original purchase invoice and the old longblock into the container and send it back. Shipping instructions to cover the freight charges are included. |
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| MM-807744R5 Long Block Assembly 807744R 5 |
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Part Number listed as no longer available.
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Remanufactured Pro-Series
GM 454 MAGNUM or HORIZON V/8 GEN-VI Block (Left-Hand Standard Rotation)
This longblock assembly includes new pistons, rings, bearings, marine gaskets, high-volume oil pump, stainless steel valves, heavy-duty valve springs, valve-keys, water-pump and marine block plugs. The cylinders are freshly bored & honed. Crankshaft is ground and polished. Roller cam, roller lifters, and connecting rods are fully re-conditioned. To save change-out time we also include the valve-covers, front timing cover, oil-pan, oil-filter, break-in oil, hot testing, factory painted, and strapped firmly in our heavy-duty returnable container, and a core-return sheet with directions for the return trip!
NOW AVAILABLE: Up to an additional two years of Major Assembly Protection (MAP) on select new or remanufactured longblock engine assemblies. MAP Coverage follows the factory provided one-year warranty period from date of purchase. |
Replaces 1996 and newer GM 454-MAGNUM sterndrive and HORIZON inboard engines with high flow rectangle ports and roller-lifters.
[2007 - Core Deposit $ 1200, Container $ 175, Bounty: $ 400 ]
To receive $ 175 for the container and up to $ 1200 core deposit refund, simply insert a copy of the dealerships original purchase invoice and the old longblock into the container and send it back. Shipping instructions to cover the freight charges are included. |
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| MM-883281R5 Long Block Assembly 883281R 5 |
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Remanufactured Pro-Series
GM 7.4 Litre MPI V/8 L-29 Block (Left-Hand Standard Rotation)
This longblock assembly includes new pistons, rings, bearings, marine gaskets, high-volume oil pump, stainless steel valves, heavy-duty valve springs, valve-keys, water-pump and marine block plugs. The cylinders are freshly bored & honed. Crankshaft is ground and polished. Roller cam, roller lifters, and connecting rods are fully re-conditioned. To save change-out time we also include the valve-covers, front timing cover, oil-pan, oil-filter, break-in oil, hot testing, factory painted, and strapped firmly in our heavy-duty returnable container, and a core-return sheet with directions for the return trip!
NOW AVAILABLE: Up to an additional two years of Major Assembly Protection (MAP) on select new or remanufactured longblock engine assemblies. MAP Coverage follows the factory provided one-year warranty period from date of purchase. |
Replaces 1998 and newer GM 7.4L MPI L-29 Standard sterndrive and inboard marine engines with oval ports and roller-lifters.
[2007 - Core Deposit $ 1200, Container $ 175, Bounty: $ 400 ]
To receive $ 175 for the container and up to $ 1200 core deposit refund, simply insert a copy of the dealerships original purchase invoice and the old longblock into the container and send it back. Shipping instructions to cover the freight charges are included. |
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