Hardin Marine

Exhaust Manifold Bolt Kit (per manifold) For 455 Olds Square Exhaust Manifold

Berkeley Exhaust Manifold Riser - Jet, Oldsmobile (pair)

This is the riser for the popular square Oldsmobile exhaust manifold.  Thought by many to be extinct, but we have retooled and this product is available once again.  This has been America's favorite Olds manifold for years.

Exhaust Manifold Spacers - 1/2" Big Block Chevy, Non-Coated Billet Aluminum

These spacers are the answer to those times when you just need a little more clearance for tall valve covers or to get those tips to line up correctly. Sold in pairs.

Exhaust Manifold Spacers - 1/2" Small Block Chevy,  Billet Aluminum

These spacers are the answer to those times when you just need a little more clearance for tall valve covers or to get those tips to line up correctly. Port size is 1-1/2" x 1-1/2". Sold in pairs.

Exhaust Manifold Spacers - 3/4" Big Block Chevy, Non-Coated Billet Aluminum

These spacers are the answer to those times when you just need a little more clearance for tall valve covers or to get those tips to line up correctly. Sold in pairs

Exhaust Manifold To Riser Gaskets - Barr Riser Gasket with Slots (each)

Here is just a sampling of the popular exhaust manifold gaskets that we offer.  Each gasket is designed to withstand the high temperatures of marine exhaust applications.  Gaskets are sold individually.

Length: 5-1/2"
Width: 3-3/4"

Exhaust Manifold To Riser Gaskets - BBC Indmar Riser Gasket (each)

Here is just a sampling of the popular exhaust manifold gaskets that weoffer.  Each gasket is designed to withstand the high temperatures ofmarine exhaust applications.  Gaskets are sold individually.

Exhaust Manifold To Riser Gaskets - BBC Indmar Riser Gasket with Slots (each)

Here is just a sampling of the popular exhaust manifold gaskets that weoffer.  Each gasket is designed to withstand the high temperatures ofmarine exhaust applications.  Gaskets are sold individually.

Exhaust Manifold To Riser Gaskets - SBC Indmar Riser Gasket with Slots (each)

Here is just a sampling of the popular exhaust manifold gaskets that we offer.  Each gasket is designed to withstand the high temperatures of marine exhaust applications.  Gaskets are sold individually.

Length: 5-5/8"
Width: 3-7/8"

Exhaust Manifold To Riser Gaskets - Early Kodiak Gasket (each)

Here is just a sampling of the popular exhaust manifold gaskets that weoffer.  Each gasket is designed to withstand the high temperatures ofmarine exhaust applications.  Gaskets are sold individually.

Bolt hole center to center is approx 4" x 3".

Exhaust Manifold To Riser Gaskets - Late Kodiak Gasket (each)

Here is just a sampling of the popular exhaust manifold gaskets that weoffer.  Each gasket is designed to withstand the high temperatures ofmarine exhaust applications.  Gaskets are sold individually.

Bolt hole center to center is approx 4.75" x 3".

Exhaust Manifold To Riser Gaskets - Late Kodiak Gasket (each)

Here is just a sampling of the popular exhaust manifold gaskets that we offer.  Each gasket is designed to withstand the high temperatures of marine exhaust applications.  Gaskets are sold individually.

Bolt hole center to center is approx 4.75" x 3".

Exhaust Manifold To Riser Gaskets - LS Manifolds (each)

Replacement gaskets for the 620-32950 LS manifolds. Each gasket is designed to withstand the high temperatures of marine exhaust applications.  Gaskets are sold individually.

Bolt hole center to center is approx 4.75" x 3".

Exhaust Manifold To Tailpipe O-Ring - Hardin Hurricane/Typhoon Tailpipe, 6" O-Ring (Each)

Exhaust Manifold To Tailpipe O-Ring - Hardin Hurricane/Typhoon Tailpipe, 6.5" O-Ring (Each)

External Oil Pump Relocation Bracket, fits Big Block Chevy

• Polished Cast Aluminum 
• Dual internal baffles Breather is sloped to match the styling of the valve cover 
• Base measures 3-1/4" Long X 2" Wide with 2-3/8 Bolt Center to Center 
• Breather measures 4" tall. 
• Breather opening measures 1-3/4" Long x 1-1/4 Wide

Extreme Duty Hi-Performance D Port Exhaust Manifold Gaskets - 454/502/8.2L Chevy - Sold in Pairs - Replaces OEM Mercury #27-8M0065690

These gaskets are graphite impregnated and designed to withstand the highest of temperatures on high horsepower applications. For those of you looking to do the job only once, insist on Hardin Marine Extreme Duty gaskets. Quite possibly the last gasket you'll ever need. These gaskets are designed to be used in D port Exhaust applications. Replaces stock OEM Mercury #27-8M0065690

Sold in Pairs

Extreme Duty Hi-Performance Exhaust Manifold Gaskets - 305/350 Chevy- Sold in Pairs

These gaskets are graphite impregnated and designed to withstand the highest of temperatures on high horsepower applications.  For those of you looking to do the job only once, insist on Hardin Marine Extreme Duty gaskets.  Quite possibly the last gasket you'll ever need.

Sold in Pairs

Extreme Duty Hi-Performance Exhaust Manifold Gaskets - 429-460 Ford - Sold in Pairs

These gaskets are graphite impregnated and designed to withstand the highest of temperatures on high horsepower applications. For those of you looking to do the job only once, insist on Hardin Marine Extreme Duty gaskets. Quite possibly the last gasket you'll ever need.

Sold in Pairs

Port Style:Oval

Extreme Duty Hi-Performance Exhaust Manifold Gaskets - Stock Square Port 454/502 Chevy - Sold in Pairs

These gaskets are graphite impregnated and designed to withstand the highest of temperatures on high horsepower applications. For those of you looking to do the job only once, insist on Hardin Marine Extreme Duty gaskets. Quite possibly the last gasket you'll ever need.

Sold in Pairs

Extreme Duty Hi-Performance Exhaust Manifold Gaskets - 2" Stock Round Port 454/502 Chevy- Sold in Pairs

These gaskets are graphite impregnated and designed to withstand the highest of temperatures on high horsepower applications. For those of you looking to do the job only once, insist on Hardin Marine Extreme Duty gaskets. Quite possibly the last gasket you'll ever need.

Sold in Pairs

Extreme Duty Hi-Performance Exhaust Manifold Gaskets - 455 Olds - Sold in Pairs

These gaskets are graphite impregnated and designed to withstand the highest of temperatures on high horsepower applications. For those of you looking to do the job only once, insist on Hardin Marine Extreme Duty gaskets.Quite possibly the last gasket you'll ever need.

Sold in Pairs

Extreme Duty Hi-Performance Exhaust Manifold Gaskets - Large 2-1/8" Square Port 454/502 Chevy - Sold in Pairs

These gaskets are graphite impregnated and designed to withstand the highest of temperatures on high horsepower applications. For those of you looking to do the job only once, insist on Hardin Marine Extreme Duty gaskets. Quite possibly the last gasket you'll ever need. These gaskets are large 2-1/8" square port.

Sold in Pairs

Extreme Duty Hi-Performance Seaward / Cyclone Exhaust Manifold Gaskets - Stock Square Port 454/502/525 Chevy - Sold in Pairs

These gaskets are graphite impregnated and designed to withstand the highest of temperatures on high horsepower applications. Double drilled for both standard BBC and 525 applications. These gaskets are designed to be used with Hardin Marine's Seaward / Cyclone Exhaust Manifolds. Will work on other Big Block Chevy Manifolds as well. 

Sold in Pairs

E-Z Oil Drain Drill Pump Kit

This simple drill drive pump will help in your oil change process by pumping the oil out of your dipstick.

E-Z Oil Drain Kit - Fits Oil Pan Drain Plug Holes With 1/2-20 Thread

This kit is the answer to the job we all hate - oil changes. By installing an E-Z oil drain hose into your existing drain plug hole you simply pull the other end out the drain plug hole and drain the oil from outside your boat. It doesn't get any easier than this! The hose is 44" long and has a cap. Gen 4 BBC oil pans are typically 1/2"-20 and Gen 5/6 pans are typically 12mm metric. These drains kits use 3/8" marine hose. NOTE: To pull drain hose through the external boat drain plug requires a minimum 7/8" hole.