Crossover Systems - Small Block Chevy

LS Crossover and Thermostat
Your Price:
$399.99

GM LS1 - LS3 Thermostatic Control Crossover Cooling System for Non-Circulating Pump Applications

625-4535

GM LS1 - LS3 Thermostatic Control Crossover Cooling System for Non-Circulating Pump Applications

AT last a cooling system solution for adapting the popular GM LS engine into any Jet Boat or application with an external water pump source. This system allows removal of the Automotive engine mounted water circulation pump and provides both water inlet/outlet and temperature control through the integrated thermostat assembly. Clean, simple, and reliable the perfect solution for retrofitting the LS modern engine into a jet boat or any boat not utilizing the OEM circulating pump.


LS Crossover and Thermostat
Your Price:
$389.99

GM LS1 - LS3 Thermostatic Cooling System for Freshwater Sterndrive Applications

625-4530

GM LS1 - LS3 Thermostatic Cooling System for Freshwater Sterndrive Applications

As Hardin Marine continues the quest towards new product development they have designed an easy to install thermostatic cooling system for freshwater raw water cooled engine applications. This system allows use of an OEM circulating style water pump and multiple accessory drive kits to to be used while providing the necessary thermostat assembly for temperature control. This is perfect for retrofitting a GM LS based engine into most popular sterndrive engine applications using a sea water pump assembly. Precision CNC machined and anodized satin finish make for an attractive compact fitment. Each unit features a 160 degree thermostat while other heat range thermostats and a bypass hose assembly is sold separately.


Standard 1-1/4" Slip-On Port Entry Stainless Steel Water Inlet Crossover
Your Price:
$179.99

SBC Standard 1-1/4" Slip-On Port Entry Water Inlet Crossover

410-1509

  • Made from 316L Stainless Steel.
  • Standard 1-1/4" Slip-On Port Entry Stainless Steel Water Inlet Crossover.
  • Precisely machined inlet plates welded to a large diameter crossover tube to provide equal water distribution.
  • Uses a standard 1-1/4" slip-on inlet connection.
  • Port inlet configuration, (check before ordering) for Small Block Chevy engines only.

Standard 1-1/4" Slip-On Starboard Entry Water Inlet Crossover
Your Price:
$235.99

SBC Standard 1-1/4" Slip-On Starboard Entry Water Inlet Crossover

410-1510

  • Constructed of 316L Stainless Steel.
  • Standard 1-1/4" Slip-On Starboard Entry Stainless Steel Water Inlet Crossover.
  • Precisely machined inlet plates welded to a large diameter crossover tube to provide equal water distribution.
  • Uses a standard 1-1/4" slip-on inlet connection.
  • Available in port and starboard inlet configuration, (check before ordering) for Small Block Chevy engines only.

Small Block Chevy Port Inlet without Bypass
Your Price:
$349.99

Small Block Chevy Port Inlet without Bypass

520-350WOP

  • Remove you circulating pump and Experience horsepower gains of up to 15 horsepower while increasing water circulation.
  • Kits come complete with all necessary bolts, gaskets, and hardware.
  • Bypass systems use a thermostat while non-bypass doesn't.
  • Stainless Steel Construction.

Small Block Chevy Starboard Inlet without Bypass
Your Price:
$349.99

Small Block Chevy Starboard Inlet without Bypass

520-350WOS

 

  • Remove you circulating pump and Experience horsepower gains of up to 15 horsepower while increasing water circulation.
  • Kits come complete with all necessary bolts, gaskets, and hardware.
  • Bypass systems use a thermostat while non-bypass doesn't.
  • Stainless Steel Construction.

 


Small Block Chevy Port Inlet with Bypass
Your Price:
$410.99

Small Block Chevy Port Inlet with Bypass

520-350WP

  • Remove you circulating pump and Experience horsepower gains of up to 15 horsepower while increasing water circulation.
  • Kits come complete with all necessary bolts, gaskets, and hardware.
  • Bypass systems use a thermostat while non-bypass doesn't.
  • Stainless Steel Construction.

Small Block Chevy Starboard Inlet with Bypass
Your Price:
$410.99

Small Block Chevy Starboard Inlet with Bypass

520-350WS

  • Remove you circulating pump and Experience horsepower gains of up to 15 horsepower while increasing water circulation.
  • Kits come complete with all necessary bolts, gaskets, and hardware.
  • Bypass systems use a thermostat while non-bypass doesn't.
  • Stainless Steel Construction.