GM 5.7 Marine Engines

SKU:
ATK-DM01.1
Availability:
Ship 7-10 Days
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List Price: $2,369.40
Starting At: $2,367.13
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PRODUCT DESCRIPTION

GM 5.7 Marine Engines

ATK premium quality marine engines are designed & built specifically for boating. No matter how you use your boat, ATK Marine engines will provide maximum performance & long-term durability. There are over 150 processes involved in the remanufactuing each ATK engine that are desinged to meet or exceed O.E. specifications. 

Featured procedures include

  • Engine blocks are magnafluxed, cylinders bored and precision-honed, and main saddles line-honed to exacting O.E. specifications
  • Camshaft bearings line-bored for accurate center-to-center clearance
  • Engine blocks and cylinder heads precision surfaced to insure proper sealing
  • Cylinder heads magnafluxed or dye checked and machined for three-angle valve seats
  • Crankshafts stress-relieved, precision ground and micro-polished for optimum durability and surface finish
  • Camshafts precision ground or replaced with new to maintain the O.E. profile
  • Each engine is tested for compression, oil pressure, oil leaks, unusual engine noise, and general operating condition before shipment
  • Pistons and connecting rod assemblies are balanced in sets to achieve minimum engine vibration
  • Oil pump or oil pump kit is supplied with each engine
  • Premium installation gasket set is supplied with each engine
  • All bearings are replaced with new
  • Timing belts, chains, gears are replaced with new
  • All rubber products are O.E. quality (i.e. main seals, valve stem seals, cam seals)
  • All ATK remanufacturing facilities are ISO 9001 and QS 9000 certified
  • No Core Charge
  • Free Freight to anywhere in the continental U.S

18 Month No Fault Warranty

  • Unlimited Hours
  • Includes Labor, Towing & Fluids

 Marine Application Chart Below - Call Customer Service for more details 1-877-388-2628

# Year Description Part #
1 1964-1980 GM 5.7 / 350/ 260HP 2 pc rear seal, 8.5:1 CR, 2 bolt main, port side dipstick. ATK-DM01
2 1964-1980 GM 5.7 / 350/ 270HP 2 pc rear seal, 9.0:1 CR, 2 bolt main, port side dipstick. Use DM03 for Reverse rotation. ATK-DM02
3 1964-1980 GM 5.7 / 350/ 270HP Reverse rotation, 2 pc rear seal, 9.0:1 CR, 2 bolt main, port side dipstick. Use DM02 for STD rotation ATK-DM03
4 1964-1980 GM 5.7 / 350/ 275HP 4 bolt main, 2 pc rear seal, 9.0:1 CR, 1.94 Intake valve, Flat tappet cam, port side dipstick.  ATK-DM08
5 1980-1985 GM 5.7 / 350/ 260HP STD rotation, 2 bolt main, 2 pc rear seal, starboard side dipstick. Valve cover bolts on perimeter. Use DM21 for reverse rotaion Casting number:  909, 979, 776, 777, 371, 778, 535, 551, 627, 058 ATK-DM20
6 1980-1985 GM 5.7 / 350/ 260HP Reverse rotation, 2 bolt main, 2 pc rear seal, starboard side dipstick. Valve cover bolts on perimeter. Use DM20 for standard rotaion Casting number:  909, 979, 776, 777, 371, 778, 535, 551, 627, 058 ATK-DM21
7 1986 GM 5.7 / 350/ 260HP Std rotation, 1pc rear seal, head casting 624, valve cover bolts to perimeter Casting number: 548, 526, 148, 638 ATK-DM96
8 1986-1987 GM 5.7 / 350/ 260HP Standard rotation, 4 bolt main, 1 pc rear seal, valve cover bolts on perimeter. Use DM23 for reverse rotation.  Casting number:  245, 379, 010, 014, 678, 388, 618 ATK-DM22
9 1986-1987 GM 5.7 / 350/ 275HP Standard rotation,cam upgrade,  4 bolt main, 1 pc rear seal, valve cover bolts on perimeter. Magnum option, 275hp   Casting number:  245, 379, 010, 014, 678, 388, 618 ATK-DM22CU
10 1986-1987 GM 5.7 / 350/ 260HP Reverse rotation, 4 bolt main, 1 pc rear seal, valve cover bolts on perimeter. Use DM22 for standard rotation.  Casting number:  245, 379, 010, 014, 678, 388, 618 ATK-DM23
11 1987-1995 GM 5.7 / 350/ 260HP 4 bolt main, 1 pc rear seal, flat tappet cam, valve covers bolt thru center, steel front cover. 12 bolt intake.  Casting number: 548, 526, 148, 638 ATK-DMA2
12 1987-1995 GM 5.7 / 350/ 275HP Std rotation, Cam upgrade,  4 bolt main, 1 pc rear seal, flat tappet cam, valve covers bolt thru center, steel front cover. 12 bolt intake. Magnum option, 275hp  Casting number: 548, 526, 148, 638 ATK-DMA2CU
13 1987-1995 GM 5.7 / 350/ 260HP  Complete with oil pan, front cover and valve covers installed.  4 bolt main, 1 pc rear seal, flat tappet cam, valve covers bolt thru center, steel front cover. 12 bolt intake.  Casting number: 548, 526, 148, 638 ATK-VMA2
14 1987-1995 GM 5.7 / 350/ 260HP  Reverse rotation, 4 bolt main, 1 pc rear seal, flat tappet cam, valve covers bolt thru center, steel front cover. 12 bolt intake.  Casting number: 548, 526, 148, 638 ATK-DMA3
15 1987-1995 GM 5.7 / 350/ 260HP Reverse rotation,Complete with oil pan, front cover and valve covers installed. 4 bolt main, 1 pc rear seal, flat tappet cam, valve covers bolt thru center, steel front cover. 12 bolt intake.  Casting number: 548, 526, 148, 638 ATK-VMA3
16 1996-2005 GM 5.7 / 350/ 260HP Complete with oil pan, front cover and valve covers installed.  4 bolt main, 1 pc rear seal,Roller cam, valve covers bolt thru center, plastic front cover w/ crank sensor hole. 8 bolt intake. Electric fuel pump   Casting number:  880 ATK-VMM9
17 1996-2005 GM 5.7 / 350/260HP  Complete with oil pan, front cover and valve covers installed.  4 bolt main, 1 pc rear seal,Roller cam, valve covers bolt thru center, plastic front cover w/o crank sensor hole. 8 bolt intake. Electric fuel pump   Casting number:  880 ATK-VMM9S
18 1996-2005 GM 5.7 / 350/260HP 4 bolt main, 1 pc rear seal, Roller cam, 8 bolt intake, electric fuel pump.   Casting number:  880 ATK-DMM9
19 1996-2006 GM 5.7 / 350/ 260HP Std rotation, 4 bolt main, roller cam, steel roller tip rockers, valve covers bolt thru center, plastic front cover. Head casting 906 or 062.   Casting number:  880 ATK-DMM9ST
20 1996-2005 GM 5.7 /350/ 275HP Std rotation, Cam upgrade, 4 bolt main, 1 pc rear seal, Roller cam, 8 bolt intake, electric fuel pump. Magnum option, 275hp   Casting number:  880 ATK-DMM9CU

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