Overview MFH-4949 Standard Mercruiser Big Block V8 Block Only
Days to Ship: 7 days
Note:If it says “Ships Today” Orders placed M-F before 4pm Eastern Time will ship the same day. Orders placed after 4pm and on weekends will ship out the next business day.
Chevy based big block V8 engines 454-502 CID both sterndrive, inboard and V-drive.
This kit will not fit the Big Block MPI Engines. The water outlet hits the plenum.
Especially designed for the low capacity raw water pumps used on sterndrive engines.
Will NOT fit most engines with high mounted alternators such as late model OMC engines. Separate kits are available for those engines. Some engines have fuel line routing and fuel filter location that must be changed slightly. Heat exchanger is 4 1/8" x 22.5" long and fits within overall length, width, and height of most engine conversions. Heat exchanger extends from the inside of the starboard exhaust manifold towards port side clearing most high mounted power steering pumps if any. See above illustration. Plastic expansion tank mounts either on front of heat exchanger or if space is limited on vertical surface next to engine. Kit includes heat exchanger, heavy duty translucent plastic expansion tank plus all other components necessary to complete conversion. Some components from engine are reused.
Heat Exchanger and Brackets are finished in black. Hose clamps are all stainless steel. Will maintain engine temperature in the 160-170? F range using 160? F thermostat, included in kit. System has capacity safety margin higher than industry standards. Very easy installation of approximately one hour assuming new engine and normal accessibility. Allow additional time for filling and testing. Installation skills are not beyond those of most do-it-yourself boat owners. Complete illustrated installation instructions are included in kit. Ordinary hand tools used.Two year warranty. For complete details see Limited Warranty for Fresh Water Cooling Kits document enclosed with your kit and located on policies page of our website.
This is Not an Original Equipment Manufacturer (OEM) Part.