Hardin Marine

Big Block Chevy / Small Block Chevy Generation 4 Sea Pump Pulley

All Hardin Marine sea pump pulleys for Gen 4 V-groove belts use a mandrel on the pump, then the pulley bolts to the mandrel. Some manufacturers sell you a press-on pulley, these usually work themselves off.  This needs a mandrel to mount.

Pulley diameter of 6.5".

• -10AN male flare fittings. 
• Designed for Big Block Chevy Engines.
• Constructed of Polished Stainless Steel.
• Sold in Pairs.
• Ideal for jet boats, v-drives and offshore installations using AN style fittings.

Big Block Chevy 10 qt. Stern Drive / Jet Drive Performance Oil Pan - With Pick-Up

Marine oil pans are subject to special conditions. Closed engine compartments create a lack of air flowing around the oil pan causing higher oil temperatures, which can destroy the lubricating properties of the oil in low capacity pans. The motion of the boat in the water sloshes the oil in pans that don't have correct baffling. Air is ingested through the oil pick-up resulting in momentary loss of oil pressure. The oil is tossed into the crank, which foams and aerates it. The pounding effect of oil in the pan cause fractures in pans without reinforcement.

• 1/2"-20 drain plug

The design and construction of these oil pans insures there are no problems, even in the roughest conditions. Here are just a few of the oil pan features:

• High capacity oil sumps
• 16 gauge steel construction
• Precision oil baffles
• 1/4" NPT Female Bung for Dipstick 
• Block fitted and double leak checked for a perfect fit every time
• Black finsih plated for corrosion protection
• Tig welded for maximum strength
• Oil temperature gauge bung provisions
• Precision oil pan mounted windage tray keeps rotating oil windage to a maximum for increased horsepower
• One way oil control doors ensure oil is contained at the oil pump pick-up where it needs to be

These oil pans offer a value unsurpassed in the marine industry today.

WARNING
Don't be fooled by twenty year old technology that requires you to replace engine main fasteners to install your windage tray. These oil pans use state of the art pan mounted windage tray systems offering you the future in oil control.

Big Block Chevy 10 Quart Stroker Stern Drive / Jet Drive Performance Oil Pan - will clear 4-5/8" stroke

Marine oil pans are subject to special conditions. Closed engine compartments create a lack of air flowing around the oil pan causing higher oil temperatures, which can destroy the lubricating properties of the oil in low capacity pans. The motion of the boat in the water sloshes the oil in pans that don't have correct baffling. Air is ingested through the oil pick-up resulting in momentary loss of oil pressure. The oil is tossed into the crank, which foams and aerates it. The pounding effect of oil in the pan cause fractures in pans without reinforcement.

• 1/2"-20 drain plug

The design and construction of these oil pans insures there are no problems, even in the roughest conditions. Here are just a few of the oil pans features:

• High capacity oil sumps
• 16 gauge steel construction
• Precision oil baffles
• 1/4" NPT Female Bung for Dipstick 
• Block fitted and double leak checked for a perfect fit every time
• Black finish for corrosion protection
• Tig welded for maximum strength
• Oil temperature gauge bung provisions
• Precision oil pan mounted windage tray keeps rotating oil windage to a maximum for increased horsepower
• One way oil control doors ensure oil is contained at the oil pump pick-up where it needs to be

These oil pans offer a value unsurpassed in the marine industry today.

WARNING
Don't be fooled by twenty year old technology that requires you to replace engine main fasteners to install your windage tray. These oil pans use state of the art pan mounted windage tray systems offering you the future in oil control.

• -12AN male flare fittings. 
• Designed for Big Block Chevy Engines.
• Constructed of Polished Stainless Steel.
• Sold in Pairs.
• Ideal for jet boats, v-drives and offshore installations using AN style fittings.

• -16AN male flare fittings. 
• Designed for Big Block Chevy Engines.
• Constructed of Polished Stainless Steel.
• Sold in Pairs.
• Ideal for jet boats, v-drives and offshore installations using AN style fittings.

Big Block Chevy 2-Piece Valve Covers w/Valve Spring Oilers (pair)

These valve covers are a Keith Eickert exclusive product that have been designed to solve the problem of excessive valve spring fatigue and failure caused by long duration engine operation at higher engine RPM's.  An industry standard in all forms of professional racing can now be added to your engine that will dramatically extend valve train life.  The oiling rail systems are available for both standard traditional valve covers as well as for the Keith Eickert 2-piece valve covers.  The oiling system rail measures 3/8" thick and incorporates eight precision-metered oil-spray jets that distribute additional oil towards each valve spring assembly.  Simple single oil inlets per rail provide easy plumbing.

• 2.25" thick from damper face to front of pulley
• 1st groove (alternator) 6.60" diameter
• 2nd groove (sea pump) 5.05" diameter
• 3rd groove (power steering) 6.60" diameter

Big Block Chevy Billet Small Diameter Crank Pulley - Machined from solid billets of the highest-grade aircraft aluminum for maximum durability and feature deep, precision-machined groove to ensure belt retention, even during extreme changes in engine rpm. These pulleys have a black anodized hard-coat for extended life and corrosion resistance . Diameter 5.250".

Big Block Chevy Crossover Gasket - Sold in Pairs

Whether you're building a new power plant for your boat or you're like many and are ready to step from the stone age of traditional V-Belts to the modern long lasting and quiet operation of serpentine style drive system then Hardin Marine has the ultimate solution.  Serpentine systems are available in either a crossover water inlet style or the factory circulating pump version.  The comes complete with sea pump as well as a factory style circulating water pump (if called for), a 94 amp high-output chrome alternator, specially valved power steering pump, all billet brackets and mounts as well as stunningly polished precision CNC machined drive pulleys and matching idlers.  The kit will also include the correct mounting hardware and serpentine drive belt for the smoothest of installations.  Hardin Marine is leading the way with the latest in boating technology.

If your application requires a bypass, you will have to drill and tap a hole as shown in this drawing.

Whether you're building a new power plant for your boat or you're like many and are ready to step from the stone age of traditional V-Belts to the modern long lasting and quiet operation of serpentine style drive system then Hardin Marine has the ultimate solution.  Serpentine systems are available in either a crossover water inlet style or the factory circulating pump version.  The comes complete with sea pump as well as a factory style circulating water pump (if called for), a 94 amp high-output chrome alternator, specially valved power steering pump, all billet brackets and mounts as well as stunningly polished precision CNC machined drive pulleys and matching idlers.  The kit will also include the correct mounting hardware and serpentine drive belt for the smoothest of installations.  Hardin Marine is leading the way with the latest in boating technology. These drive kits version do not include the power steering assembly.

Big Block Chevy Half System Closed Cooling Kit Up To 650HP - Copper / Bras

• Deck Height: 9.8"
• 650 hp
• Fits: 454 CID through 540 CID engines. Half Kit cools engine only.

While there are numerous universal OEM closed cooling kits, this is not one of those. This is a true custom engineered and developed closed cooling system designed around traditional Std. deck height 9.8" Big Block Chevrolet applications. The kit is perfect for the 454 CID through 540 CID engines making up to 650 horsepower. We offer the closed cooling tank in a paint-to-finish primed coated version. The kit comes with tank, brackets, hoses, and thermostat housing.This High Performance Closed Cooling kit is designed for applications with horsepower levels to 650HP.

These kits are designed to be used with the Hardin Marine serpentine drive kits, can be used with standard V-Belt pulleys if using 625-8108 power steering bracket.

Big Block Chevy Extra Thick Bolt Xtreme Marine Seal™ Valve Cover Gasket- Sold in Pairs

There is nothing more frustrating than a leaking valve cover seal, so don't settle for anything less than the best. That's why professional engine builders nationwide demand Xtreme Marine Seal valve cover gaskets. Produced from a blend of polymer and cork to provide a gasket that will last. Gaskets are .300" thick.

Sold in Pairs

Big Block Chevy Full Closed Cooling Kit Up To 650HP - Copper / Brass

• Deck Height: 9.8"
• Length: 33"
• 650 hp
• Fits: 454 CID through 540 CID engines. The 625-4580 is a full system, cooling the engine and manifolds.

While there are numerous universal OEM closed cooling kits, this is not one of those. This is a true custom engineered and developed closed cooling system designed around traditional standard deck height 9.8" Big Block Chevrolet applications. The kit is perfect for the 454 CID through 540 CID engines making up to 650 horsepower. We offer the closed cooling tank in a paint-to-finish primed coating. The kit comes with tank, brackets, hoses, and thermostat housing. This High Performance Closed Cooling kit is designed for applications with horsepower levels to 650HP.

These kits are designed to be used with the Hardin Marine serpentine drive kits, can be used with standard V-Belt pulleys if using 625-8108 power steering bracket.

Big Block Chevy Gen 4 "XS" Series Offshore Oil Pan - (Pan, oil pick-up & windage tray only)

The "XS" Xtreme Series 4-5/8" stroker oil pans are competition tested and race proven. They out perform all other pans available. Each pan starts out jig formed and precision TIG welded, then an exclusive race proven windage tray is added which prevents oil foaming and crankshaft windage, which helps to build more horsepower. Next a high volume oil pump pick-up with a support bracket is added. The entire pan is coated with a hardened aerospace epoxy to resist stains and corrosion. Designed to clear most front style engine mounts including MerCruiser. A simple comparison of available marine oil pans clearly points out Hardin Marine oil pans are boat lengths ahead of all other oil pans. Run what leading racers worldwide already use - the Hardin Marine "XS" Xtreme Series offshore oil pan. 1/4" NPT Female Bung for Dipstick 

• Extra Large 10 qt. (8.9" Deep) & 12 qt. (10" deep) pans.
• Pan rear support spacers provided added clearance to mounting fasteners.
• 1/4" NPT threaded flexible dipstick provides a leak proof seal between dipstick and pan.
• Heavy duty pan rails are notched to allow 4-5/8" stroke rotating assemblies.
• "T" bottom style offers additional oil capacity storage for constant supply to the engine oil pickup.
• Zinc plated one-piece windage tray and crank scraper prevents oil foaming, building more power than other brands.
• Highly flexible dipstick allows accessibility around engine mounts and exhaust systems.
• Oil relief in kick out allows added room for long filters and sandwich adapters.
• Fully gusseted high-flow oil pick-up included.
• Includes mounting bolt kit.
• Welded for durability.
• 1/2"-20 drain plug.

Big Block Chevy Gen 4 & 5 Timing Cover Gasket- Sold Each

These Hardin Marine Sea timing/front cover gaskets are designed to exceed all original equipment specifications. Each gasket is precision die-cut for a perfect fit every time.

Sold Each

Stainless Steel Bolt Kits - B/B Chevy Gen 4 Oil Pan Bolt Kit
We offer a full selection of manifold bolt kits to fit most popular marine engines.  These kits come complete with the correct number of

Big Block Chevy Gen 4, 2-piece Rear Main Seal- Sold Each

These excellent rear main seals are designed to replace worn, deteriorated original equipment seals and provide years of trouble free service

Sold Each

Big Block Chevy Gen 4, 5 & 6 Front Seal- Sold Each

These excellent front timing cover seals are designed to replace worn, deteriorated original equipment seals and provide years of trouble free service

Sold Each

Stainless Steel Bolt Kits - B/B Chevy Gen 4/5 Timing Cover Bolt Kit
We offer a full selection of manifold bolt kits to fit most popular marine engines.  These kits come complete with the correct num

Big Block Chevy Gen 5 & 6 1-piece Rear Main Seal- Sold Each

These excellent rear main seals are designed to replace worn, deteriorated original equipment seals and provide years of trouble free service

Sold Each

Big Block Chevy Gen 5/6 "XS" Series Offshore Oil Pan - (Pan, oil pick-up & windage tray only)

The "XS" Xtreme Series 4-5/8" stroker oil pans are competition tested and race proven. They out perform all other pans available. Each pan starts out jig formed and precision TIG welded, then an exclusive race proven windage tray is added which prevents oil foaming and crankshaft windage, which helps to build more horsepower. Next a high volume oil pump pick-up with a support bracket is added. The entire pan is coated with a hardened aerospace epoxy to resist stains and corrosion. Designed to clear most front style engine mounts including MerCruiser. A simple comparison of available marine oil pans clearly points out Hardin Marine oil pans are boat lengths ahead of all other oil pans. Run what leading racers worldwide already use - the Hardin Marine "XS" Xtreme Series offshore oil pan. 1/4" NPT Female Bung for Dipstick