IMCO Marine

Pinion Seal Carrier
Your Price:
$74.99

Pinion Seal Carrier

421-01-2240

Pinion Seal Carrier

Used with XR yoke.


Pinion Seal Carrier
Your Price:
$56.99

Pinion Seal Carrier

421-01-2002

Pinion Seal Carrier


Pinion Shim
Your Price:
$30.99

Pinion Shim

421-01-2019

Pinion Shim


Pinion Shoulder Washer
Your Price:
$87.99

Pinion Shoulder Washer

421-01-2167

Pinion Shoulder Washer


Pinion Shoulder Washer
Your Price:
$108.99

Pinion Shoulder Washer

421-01-2241

Pinion Shoulder Washer


Pipe Plug - 1/8 NPT S/S
Your Price:
$3.99

Pipe Plug - 1/8 NPT S/S

421-09-2007

Pipe Plug - 1/8 NPT S/S


Polished Stringer Mount
Your Price:
$130.99

Polished Stringer Mount

421-04-1296

Polished Stringer Mount Bolts to side of Stringer.

Polished Stringer Mount Bolts to side of Stringer.

Mounts are cast A-356 aluminum heat treated to -T6 full hard for maximum strength. Stringer mounts (SOLD IN PAIRS).


Polished Water Pump Bracket
Your Price:
$185.99

Polished Water Pump Bracket

421-04-1385

Polished Water Pump BracketPolished Water Pump Bracket Fits Mercury water pumps wiht machined snout and Jabsco water pumps.

PowerFlow B/B (Black Manifolds Only)
Your Price:
$2,171.99

PowerFlow B/B (Black Manifolds Only)

421-02-1091

Black Big Block Manifolds

Black big block manifolds. (Sold in pairs)

These high performance manifolds are unique in design, that creates a high velocity airflow that increases torque, rpm, and horsepower over stock cast iron manifolds on big blocks. We have experienced 40 to 50 foot pounds of torque on big block 502, 415 horsepower motors, and 80 to 90 foot pounds of torque on engines up to 575 cubic inches.

Powerflow manifolds are water-jacketed, water surrounds each exhaust passage, including the ports to eliminate burnout. Black manifolds are hard anodized prior to powder coat, to ensure against corrosion. All manifolds are available in Recirc or standard.

The risers are highly polished stainless steel, and are designed for 4" exhaust tips. We offer a wide variety of riser pipe configurations (AS SHOWEN IN RISER PIPE SECTION), to accommodate just about every application. Custom riser pipes can also be manufactured to order, just give us a call for details.

Our Powerflow manifolds have a weight savings of 80 pounds over stock cast iron big block manifolds. It allows for twin engine mounting down to 33" centers.


PowerFlow B/B (Polished Manifolds Only)
Your Price:
$2,115.99

PowerFlow B/B (Polished Manifolds Only)

421-02-1092

Polished Big Block Manifolds

Polished big block manifolds. (Sold in pairs)

These high performance manifolds are unique in design, that creates a high velocity airflow that increases torque, rpm, and horsepower over stock cast iron manifolds on big blocks. We have experienced 40 to 50 foot pounds of torque on big block 502, 415 horsepower motors, and 80 to 90 foot pounds of torque on engines up to 575 cubic inches.

Powerflow manifolds are water-jacketed, water surrounds each exhaust passage, including the ports to eliminate burnout. Black manifolds are hard anodized prior to powder coat, to ensure against corrosion. All manifolds are available in Recirc or standard.

The risers are highly polished stainless steel, and are designed for 4" exhaust tips. We offer a wide variety of riser pipe configurations (AS SHOWEN IN RISER PIPE SECTION), to accommodate just about every application. Custom riser pipes can also be manufactured to order, just give us a call for details.

Our Powerflow manifolds have a weight savings of 80 pounds over stock cast iron big block manifolds. It allows for twin engine mounting down to 33" centers.


PowerFlow B/B Recirc (Black Manifolds Only)
Your Price:
$2,151.99

PowerFlow B/B Recirc (Black Manifolds Only)

421-02-1093

PowerFlow B/B Recirc Manifolds (Black)

These Powerflow Recirc or Preheat Manifolds are a specialized exhaust system that are one of many examples for all out powerboat racing applications. (Sold in pairs)

These are perfect for those who like to pre-heat their motors to get temperature, or for those who have closed cooling systems (early style, round hole with round water inlet replacement manifolds available).

These high performance manifolds are unique in design, that creates a high velocity airflow that increases torque, rpm, and horsepower over stock cast iron manifolds on both small block and big block. We have experienced 40 to 50 foot pounds of torque on big block 502, 415 horsepower motors, and 80 to 90 foot pounds of torque on engines up to 575 cubic inches.

Powerflow manifolds are water-jacketed, water surrounds each exhaust passage, including the ports to eliminate burnout. Black manifolds are hard anodized prior to powder coat, to ensure against corrosion. All manifolds are available in Recirc or standard.

The risers are highly polished stainless steel, and are designed for 4" exhaust tips. We offer a wide variety of riser pipe configurations (AS SHOWEN IN THE RISER PIPE SECTION), to accommodate just about every application. Custom riser pipes can also be manufactured to order, just give us a call for details.

Our Powerflow manifolds have a weight savings of 80 pounds over stock cast iron big block manifolds. It allows for twin engine mounting down to 33" centers.


PowerFlow B/B Recirc (Polished Manifolds Only)
Your Price:
$2,115.99

PowerFlow B/B Recirc (Polished Manifolds Only)

421-02-1095

Polished Big Block Recirculation Manifolds

Polished big block recirculation manifolds. (Sold in pairs)

These Powerflow Recirc or Preheat Manifolds are a specialized exhaust system that are one of many examples for all out powerboat racing applications.

These are perfect for those who like to pre-heat their motors to get temperature, or for those who have closed cooling systems (early style, round hole with round water inlet replacement manifolds available).

These high performance manifolds are unique in design, that creates a high velocity airflow that increases torque, rpm, and horsepower over stock cast iron manifolds on both small block and big block. We have experienced 40 to 50 foot pounds of torque on big block 502, 415 horsepower motors, and 80 to 90 foot pounds of torque on engines up to 575 cubic inches.

Powerflow manifolds are water-jacketed, water surrounds each exhaust passage, including the ports to eliminate burnout. Black manifolds are hard anodized prior to powder coat, to ensure against corrosion. All manifolds are available in Recirc or standard.

The risers are highly polished stainless steel, and are designed for 4" exhaust tips. We offer a wide variety of riser pipe configurations (AS SHOWEN IN THE RISER PIPE SECTION), to accommodate just about every application. Custom riser pipes can also be manufactured to order, just give us a call for details.

Our Powerflow manifolds have a weight savings of 80 pounds over stock cast iron big block manifolds. It allows for twin engine mounting down to 33" centers.


Powerflow Big Block Chevy Manifolds Only Kit - Black
Your Price:
$2,224.99

Powerflow Big Block Chevy Manifolds Only Kit - Black

421-02-8057

Powerflow Big Block Chevy Manifolds Only Kit (Pair of Manifolds)

Powerflow manifolds are manufactured using the finest materials and most advanced techniques available. The high quality aluminum manifold castings feature water jackets that surround each exhaust passage, including the port, to eliminate the possibility of burn out.

 The outside manifold surfaces are then coated with the highest quality epoxy powder coating available, creating a part that not only is highly corrosion resistant, but good looking as well. Features an external fitting to accept stock MerCruiser thermostat plumbing. Kit includes gaskets and bolts. 


Powerflow Big Block Chevy Manifolds Only Kit - Polished
Your Price:
$2,169.99

Powerflow Big Block Chevy Manifolds Only Kit - Polished

421-02-8059

Powerflow Big Block Chevy Manifolds Only Kit , Polished(Pair of Manifolds)

Powerflow manifolds are manufactured using the finest materials and most advanced techniques available. The high quality aluminum manifold castings feature water jackets that surround each exhaust passage, including the port, to eliminate the possibility of burn out.

The outside manifold surfaces are polished. Features an external fitting to accept stock MerCruiser thermostat plumbing. Kit includes gaskets and bolts. 


Powerflow Big Block Kit with Stainless Riser
Your Price:
$3,299.99

Powerflow Big Block Kit with Stainless Riser

421-PF-82AK

Powerflow Big Block Kit with Stainless Riser

This "A" pipe is used with Bravo drives or King Cobra drives. It's short design allows for thru transom exhaust tip hook-up. This system has a 10% horsepower increase and 40-50 foot pounds of torque on stock engines. All Powerflow systems are available fully polished.

Powerflow manifolds are manufactured using the finest materials and most advanced techniques available. The high quality aluminum manifold castings feature water jackets that surround each exhaust passage, including the port, to eliminate the possibility of burn out.

 The outside manifold surfaces are then coated with the highest quality epoxy powder coating available, creating a part that not only is highly corrosion resistant, but good looking as well. Features an external fitting to accept stock MerCruiser thermostat plumbing.


PowerFlow Big Block Manifold Kit Recirc Polished
Your Price:
$2,317.99

PowerFlow Big Block Manifold Kit Recirc Polished

421-02-8063

PowerFlow Big Block Manifold Kit Recirc Polished (Sold in pairs)

PowerFlow Big Block Manifold Kit Recirc Polished (Sold in pairs)

These high performance manifolds are unique in design, that creates a high velocity airflow that increases torque, rpm, and horsepower over stock cast iron manifolds on big blocks. We have experienced 40 to 50 foot pounds of torque on big block 502, 415 horsepower motors, and 80 to 90 foot pounds of torque on engines up to 575 cubic inches.

Powerflow manifolds are water-jacketed, water surrounds each exhaust passage, including the ports to eliminate burnout. Black manifolds are hard anodized prior to powder coat, to ensure against corrosion. All manifolds are available in Recirc or standard.

Our PowerFlow manifolds have a weight savings of 80 pounds over stock cast iron big block manifolds. It allows for twin engine mounting down to 33" centers.

These are perfect for those who like to pre-heat their motors to get temperature, or for those who have closed cooling systems.


Kit Includes
QTY Description P/N
2 PowerFlow Big Block Recirc Manifolds (Polished) 02-1095
2 PowerFlow Big Block Bolt Kits 02-8084
2 Big Block Manifold Gaskets 11-1008
2 Big Block Manifold Riser Gaskets 11-1004

PowerFlow Big Block Polished Manifold and "A" Riser Kit
Your Price:
$3,245.99

PowerFlow Big Block Polished Manifold and "A" Riser Kit

421-02-8318

PowerFlow Big Block Manifold Polished and "A" Riser Kit
To view and download the PDF line drawing Left Side  CLICK HERE
To view and download the PDF line drawing Right Side  CLICK HERE
To view and download the PDF water hose diagram  CLICK HERE

PowerFlow Big Block Manifold Polished and "A" Riser Kit

Shown with optional riser bung. These high performance manifolds are unique in design, that creates a high velocity airflow that increases torque, rpm, and horsepower over stock cast iron manifolds. We have experienced 40-50 foot pound of torque on big block 502, 415 horsepower motors, and 80 to 90 foot pounds of torque on engines up to 575 cubic inches.

PowerFlow manifolds are water-jacketed, water surrounds each exhaust passage, including the ports to eliminate burnout

Big Block Stainless steel "A" risers are designed for stock Mercruiser Bravo exhaust tip locations. 3/4"npt fitting is used on front of pipe for thermostat housing that have (4) 1" hoses water to go to exhaust manifolds if needed click on (ADD BUNG).

The risers are highly polished stainless steel, and are designed for 4" exhaust tips. We offer a wide variety of riser pipe configurations to accommodate just about every application. Custom riser pipes can also be manufactured to order, see "custom pipes" for details.

Shift bracket, ECM, or EFI brackets available as bolt on or welded to the risers. To order see PowerFlow accessories or click on "Related Products" on the right side of screen.


Kit Includes
QTY Description P/N
2 PowerFlow Big Block Manifolds (Polished) 02-1092
2 Standard Height "A" Risers 02-6096
2 PowerFlow Big Block Bolt Kits 02-8083
2 Big Block Manifold Gaskets 11-1008


PowerFlow Big Block Polished Manifold and "A" Riser Kit 3"
Your Price:
$3,485.99

PowerFlow Big Block Polished Manifold and "A" Riser Kit 3"

421-02-8320

PowerFlow Big Block Manifold and "A" Riser Kit 3" Taller (Sold in pairs) )
To view and download the PDF line drawing Left Side  CLICK HERE
To view and download the PDF line drawing Right Side  CLICK HERE
To view and download the PDF water hose diagram  CLICK HERE

PowerFlow Big Block Manifold and "A" Riser Kit 3" Taller

Shown with optional riser bung. These high performance manifolds are unique in design, that creates a high velocity airflow that increases torque, rpm, and horsepower over stock cast iron manifolds. We have experienced 40-50 foot pound of torque on big block 502, 415 horsepower motors, and 80 to 90 foot pounds of torque on engines up to 575 cubic inches.

PowerFlow manifolds are water-jacketed, water surrounds each exhaust passage, including the ports to eliminate burnout.

Big Block 3" Stainless steel "A" risers are designed for stock Mercruiser Bravo exhaust with 3" riser block between manifold & Riser. tip locations should be 3" higher then stock. 3/4"npt fitting is used on front of pipe for thermostat housing that have (4) 1" hoses water to go to exhaust manifolds if needed click on (ADD BUNG).

The risers are highly polished stainless steel, and are designed for 4" exhaust tips. We offer a wide variety of riser pipe configurations to accommodate just about every application. Custom riser pipes can also be manufactured to order, see "custom pipes" for details.

Shift bracket, ECM, or EFI brackets available as bolt on or welded to the risers. To order see PowerFlow accessories or click on "Related Products" on the right side of screen.


Kit Includes
QTY Description P/N
2 PowerFlow Big Block Manifolds (Polished) 02-1092
2 3" Taller "A" Risers 02-6097
2 PowerFlow Big Block Bolt Kits 02-8083
2 Big Block Manifold Gaskets 11-1008

PowerFlow Big Block Polished Manifold and "A" Riser Kit 6"
Your Price:
$3,525.99

PowerFlow Big Block Polished Manifold and "A" Riser Kit 6"

421-02-8322

PowerFlow Big Block Polished Manifold and "A" Riser Kit 6" Taller (Sold in pairs)
To view and download the PDF line drawing Left Side  CLICK HERE
To view and download the PDF line drawing Right Side  CLICK HERE
To view and download the PDF water hose diagram  CLICK HERE

PowerFlow Big Block Polished Manifold and "A" Riser Kit 6" Taller

These high performance manifolds are unique in design, that creates a high velocity airflow that increases torque, rpm, and horsepower over stock cast iron manifolds. We have experienced 40-50 foot pound of torque on bigh block 502, 415 horsepower motors, and 80 to 90 foot pounds of torque on engines up to 575 cubic inches.

PowerFlow manifolds are water-jacketed, water surrounds each exhaust passage, including the ports to eliminate burnout.

Big Block 6" Stainless steel "SA" riser pipes are designed to replace stock Mercruiser Bravo exhaust with 6" riser block between manifold & Riser. 3/4"npt fitting is used on front of pipe for thermostat housing that have (4) 1" hoses water to go to exhaust manifolds if needed click on (ADD BUNG).

The risers are highly polished stainless steel, and are designed for 4" exhaust tips. We offer a wide variety of riser pipe configurations to accommodate just about every application. Custom riser pipes can also be manufactured to order, see "custom pipes" for details.

Shift bracket, ECM, or EFI brackets available as bolt on or welded to the risers. To order see PowerFlow accessories or click on "Related Products" on the right side of screen.


Kit Includes
QTY Description P/N
2 PowerFlow Big Block Manifolds (Polished) 02-1092
2 6" Taller "A" Risers 02-6096
2 PowerFlow Big Block Bolt Kits 02-8083
2 Big Block Manifold Gaskets 11-1008

 


PowerFlow Big Block Polished Manifold and "SA" Riser Kit
Your Price:
$3,389.99

PowerFlow Big Block Polished Manifold and "SA" Riser Kit

421-02-8330

PowerFlow Big Block Polished Manifold and "SA" Riser Kit

To view and download the PDF line drawing Left Side  CLICK HERE
To view and download the PDF line drawing Right Side  CLICK HERE
To view and download the PDF water hose diagram  CLICK HERE

PowerFlow Big Block Polished Manifold and "SA" Riser Kit

Shown with optional riser bung. These high performance manifolds are unique in design, that creates a high velocity airflow that increases torque, rpm, and horsepower over stock cast iron manifolds. We have experienced 40-50 foot pound of torque on big block 502, 415 horsepower motors, and 80 to 90 foot pounds of torque on engines up to 575 cubic inches.

PowerFlow manifolds are water-jacketed, water surrounds each exhaust passage, including the ports to eliminate burnout.

SA riser pipes are designed for Mercruiser Silent Choice, Corsa Quick and Quiet, and IMCO's Sound Advantage systems. A 3/4" npt fitting is used on front of pipe for thermostat housing that have (4) 1" hoses water to go to exhaust manifolds if needed click on (ADD BUNG).

The risers are highly polished stainless steel, and are designed for 4" exhaust tips. We offer a wide variety of riser pipe configurations to accommodate just about every application. Custom riser pipes can also be manufactured to order, see "custom pipes" for details.

Shift bracket, ECM, or EFI brackets available as bolt on or welded to the risers. To order see PowerFlow accessories or click on "Related Products" on the right side of screen.


Kit Includes
QTY Description P/N
2 PowerFlow Big Block Manifolds (Polished) 02-1092
2 Standard Height "SA" Risers 02-6108
2 PowerFlow Big Block Bolt Kits 02-8083
2 Big Block Manifold Gaskets 11-1008