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    7.4L 454CUI

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    1. 1971-1990 454 / 7.4 Liter OMC, MerCruiser, Volvo Marine MARINE ENGINE ATKDM25

      1971-1990 454 / 7.4 Liter OMC, MerCruiser, Volvo Marine MARINE ENGINE ATKDM25

      1971-1990 454 / 7.4 Liter OMC, MerCruiser, Volvo Marine MARINE ENGINE ATKDM25
      STANDARD ROTATION, BLOCK #959,286,445, 2 BOLT MAIN, HEAD #236,045,360,781,049 OVAL INTAKE PORT
      TC info: steel/tin
      Lifters : flat
      Rockers: ball
      Bolts: 10
      Notes: timing chain, flat pistons, cast crank, 1 5/8 Learn More
      $2,839.99

      Request Availability

    2. 1971-1990 454 / 7.4 Liter OMC, MerCruiser, Volvo Marine MARINE ENGINE ATKDM32

      1971-1990 454 / 7.4 Liter OMC, MerCruiser, Volvo Marine MARINE ENGINE ATKDM32

      1971-1990 454 / 7.4 Liter OMC, MerCruiser, Volvo Marine MARINE ENGINE ATKDM32
      REVERSE ROTATION, BLOCK #959,286,445, 2 BOLT MAIN, HEAD #236,045,360,781,049 OVAL INTAKE PORT
      TC info: steel/tin
      Lifters : flat
      Rockers: ball
      Bolts: 10
      Notes: timing gears, tin oil pan, cast crank, flat pistons,
      With 18 month/Unlimited Hours Warranty Learn More
      $3,209.99

    3. 1980-90 7.4 Liter 454-W /Marine(ES-1096M) Flat Tappet Camshaft Marine Longblock Engine EGM45485FOR 454 FORWARD

      1980-90 7.4 Liter 454-W /Marine(ES-1096M) Flat Tappet Camshaft Marine Longblock Engine EGM45485FOR 454 FORWARD

      Marine Engine w/ Gasket Kit and Oil Pump 80-90 7.4 Liter 454-W /Marine(ES-1096M) Flat Tappet Camshaft , W/"D" Shaped Combustion Chamber And Rectangular Exhaust Port Heads, Two Piece Rear Main Seal Block With Fuel Pump Hole , Mark IV Block. GM STANDARDROTATION

      Remanufactured in an ISO-9002 and QS-9000 Certified Facility in the USA. 3 year/100,000 mile limited warranty for most applications (see details)
      Visit http://engineguy.com for details. Tested and ready to Install Inventory updated daily. EGM45485FOR
      Added at Checkout: $0 Refundable Core Deposit: 0
      Learn More
      $2,859.99

    4. 1991-1995 454 / 7.4 Liter OMC, MerCruiser, Volvo Marine MARINE ENGINE ATKDMC5

      1991-1995 454 / 7.4 Liter OMC, MerCruiser, Volvo Marine MARINE ENGINE ATKDMC5

      1991-1995 454 / 7.4 Liter OMC, MerCruiser, Volvo Marine MARINE ENGINE ATKDMC5
      STANDARD ROTATION, 4 BOLT MAIN, BLOCK 182, 1PC REAR SEAL, HEAD #156, OVAL INTAKEPORT
      TC info: steel/tin
      Lifters : roller
      Rockers: ball
      Bolts: 10
      Notes: Gen 5, oval intake, 1 pc rear seal, 9 qt oil pan 1 5/8 Learn More
      $2,839.99

    5. 1991-1995 454 / 7.4 Liter OMC, MerCruiser, Volvo Marine MARINE ENGINE ATKDME1

      1991-1995 454 / 7.4 Liter OMC, MerCruiser, Volvo Marine MARINE ENGINE ATKDME1

      1991-1995 454 / 7.4 Liter OMC, MerCruiser, Volvo Marine MARINE ENGINE ATKDME1
      REVERSE ROTATION, 4 BOLT MAIN, BLOCK 182, 1PC REAR SEAL, HEAD #156, OVAL INTAKE PORT
      TC info: steel/tin
      Lifters : flat
      Rockers: ball
      Bolts: 10
      Notes: Gen 5, timing gears, cast crank, flat pistons, 1 pc rear seal, 1992-96
      With 18 month/Unlimited Hours Warranty Learn More
      $2,839.99

      Request Availability

    6. 1991-95 7.4 Liter 454-W/Marine (ES-1096M) Flat Tappet Camshaft Marine Longblock Engine EGM45491FDC

      1991-95 7.4 Liter 454-W/Marine (ES-1096M) Flat Tappet Camshaft Marine Longblock Engine EGM45491FDC

      Marine Engine w/ Gasket Kit and Oil Pump 91-95 7.4 Liter 454-W/Marine (ES-1096M) Flat Tappet Camshaft , W/"D" Shaped Combustion Chamber And Rectangular Exhaust Port Heads, One Piece Rear Main Seal Block W/O Fuel Pump Hole, MarkV Block. GM STANDARDROTATION

      Remanufactured in an ISO-9002 and QS-9000 Certified Facility in the USA. 3 year/100,000 mile limited warranty for most applications (see details)
      Visit http://engineguy.com for details. Tested and ready to Install Inventory updated daily. EGM45491FDC
      Added at Checkout: $0 Refundable Core Deposit: 0
      Learn More
      $2,859.99

    7. 1996-01 7.4 Liter 454-W/ Marine(12552296) RollerTappet Camshaft, W/ "D" Shaped Combustion Chamber Marine Longblock Engine EGM45496RDC

      1996-01 7.4 Liter 454-W/ Marine(12552296) RollerTappet Camshaft, W/ "D" Shaped Combustion Chamber Marine Longblock Engine EGM45496RDC

      Marine Engine w/ Gasket Kit and Oil Pump 96-01 7.4 Liter 454-W/ Marine(12552296) RollerTappet Camshaft, W/ "D" Shaped Combustion Chamber And Rectangular Exhaust Port Heads, One Piece Rear Main Seal BlockW/ Fuel Pump Hole, Mark VI Block. GMSTANDARD ROTATION

      Remanufactured in an ISO-9002 and QS-9000 Certified Facility in the USA. 3 year/100,000 mile limited warranty for most applications (see details)
      Visit http://engineguy.com for details. Tested and ready to Install Inventory updated daily. EGM45496RDC
      Added at Checkout: $0 Refundable Core Deposit: 0
      Learn More
      $3,199.99

    8. 1996-03 7.4 Liter 454-W/Marine 310HP (12552296) Roller Tappet Camshaft, Marine Longblock Engine EGM45496RHC

      1996-03 7.4 Liter 454-W/Marine 310HP (12552296) Roller Tappet Camshaft, Marine Longblock Engine EGM45496RHC

      Marine Engine w/ Gasket Kit and Oil Pump 96-03 7.4 Liter 454-W/Marine 310HP (12552296) Roller Tappet Camshaft, W/ Heart Shaped Combustion Chamber And "D" Exhaust Port Heads and Oval Port Intake, One Piece Rear Main Seal Block W/Fuel Pump Hole, Mark VI Block. GMSTANDARDROTATION

      Remanufactured in an ISO-9002 and QS-9000 Certified Facility in the USA. 3 year/100,000 mile limited warranty for most applications (see details)
      Visit http://engineguy.com for details. Tested and ready to Install Inventory updated daily. EGM45496RHC
      Added at Checkout: $0 Refundable Core Deposit: 0
      Learn More
      $3,199.99

    9. 1996-1998 454 / 7.4 Liter OMC, MerCruiser, Volvo Marine MARINE ENGINE ATKDMK1

      1996-1998 454 / 7.4 Liter OMC, MerCruiser, Volvo Marine MARINE ENGINE ATKDMK1

      1996-1998 454 / 7.4 Liter OMC, MerCruiser, Volvo Marine MARINE ENGINE ATKDMK1
      STANDARD ROTATION, 4 BOLT MAIN, CARBED, BLOCK #297 OR 313, HEAD #156, OVAL INTAKE PORT
      TC info: aluminum
      Lifters : roller
      Rockers: ball
      Bolts: 6
      Notes: Gen 6, timing gears, cast crank, flat pistons, 1 pc rear seal, 6 bolt timing cover 1-5/8 Learn More
      $3,299.99

    10. 1996-2005 454 / 7.4 Liter OMC, MerCruiser, Volvo Marine MARINE ENGINE ATKDMK2

      1996-2005 454 / 7.4 Liter OMC, MerCruiser, Volvo Marine MARINE ENGINE ATKDMK2

      1996-2005 454 / 7.4 Liter OMC, MerCruiser, Volvo Marine MARINE ENGINE ATKDMK2
      STANDARD ROTATION, 4 BOLT MAIN, F.I. VORTEC, BLOCK #297,313, HEAD #279, OVAL INTAKE PORTS, CRANK #188, ROLLER CAM, 6 BOLT TIMING COVER
      TC info: aluminum
      Lifters : roller
      Rockers: ball
      Bolts: 6
      Notes: Gen 6, timing chain, flat pistons, cast crank, tin oil pan, pcv on side of v/c, vortec heads w/ oval ports
      With 18 month/Unlimited Hours Warranty Learn More
      $3,489.99

      Request Availability

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