High Capacity "1/2" System - Early Model GM 4.3L/5.7L V6/V8 w/ V-Belt (#MFH-5229-gm)
Part #: MFH-5229-gm
This product is no longer available.
NOTE: If your engne is equipped with fuel line as shown in the following pictures, it is required to install a flexible fuel line to allow clearance around the thermostat housing included in this FWC kit.... Fuel Line 1....Fuel Line 2...
The following links are for pictures of a typical early model marinized General Motors small V8, such as this system is intended to fit. Select the following links to see if this is representative of your particular engine. Image 1.... Image 2.... Image 3....
NOTE: Please be aware of the following issues when installing this kit on a Volvo Penta engine
- • Volvo-Penta uses a 1" Dia hose from the circ pump to the heat exchanger. This kit is set up for 1-/14 dia hose connections
- • Volvo-Penta uses ?" Dia exhaust manifold hose connections. This kit is set up for 1" dia hose connections
- • The temperature sending units and switch located on the thermostat housing are 3/8 NPT thread which will have to be accommodated for Volvo Penta applications suign the smaller dia thread.
Specifications: Chevy based small block V6/V8 engines 262-305-350 CID both sterndrive and inboard. 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 and/or v-drives, or engines with a serpentine belt. 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 23.5" long and fits within overall length, width, and height of most engine conversions. Heat exchanger extends from extreme starboard side of a normal 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. Block only. Engine block on fresh water system. Exhaust manifolds remain on raw water system. 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 painted black. Brackets and other components painted black or zinc plated. Hose clamps all stainless construction. Shell and tube type. Special new high capacity design. All copper alloy construction made to the highest industry standards. Heavy-duty dual demountable clean out end covers. Zinc anode protection. Will maintain engine temperature in the 160-170 F range using a 160?F thermostat, included in kit. System has capacity safety margin higher than industry standards. Heaters such as galley water heaters and cabin heaters are easily connected to the system by utilizing the cooling system bypass connections. 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.
MFH-5229-gm System Specifications
MFH-5229-gm Kit Installation Instructions
Two year warranty on complete kit.