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Sierra Marine Parts Catalog: High Performance Products

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18-8114
18-8115
18-7866
FUEL LINE HOSE
FUEL LINE HOSE
FUEL FILTER
For fuel pump to carburetor connection. Replaces
For fuel pump to carburetor connection. Replaces
Replaces: Yamaha MAR-FUELF-IL-TR
copper or steel tubing 3/8" X 31" PTFE composite
copper or steel tubing 3/8" X 25" PTFE composite
High Capacity - 6"
hose with 5/8"-18 male inverted flare straight one
hose with 5/8"-18 male inverted flare straight one
10 Micron
end, 5/8"-18 90 one end. SAE J1527 type A1
end, 5/8"-18 90 one end. SAE J1527 type A1
18-7628
18-7332
INTAKE MANIFOLD
ELECTRIC FUEL PUMP
18-7627
Small-block GM with vortec cylinder heads
Includes bracket and mounting hardware
INTAKE MANIFOLD
Brass lined water jackets for salt water
43 GPH 7 PSI Max. 1/4 NPSF for 3/8 hose
applications
Small-block GM with vortec cylinder heads
operates with both gasoline and diesel fuel - 24 Volt only
18-7489
18-1989
WEBER 750 CARBURETOR
THERMOSTAT HOUSING
Universal square flange mounting pattern
Replaces: 87290A4, 861006A1
High-luster polished exterior
18-1989K
Stainless Steel
Electric choke
THERMOSTAT SERvICE KIT
Calibrated and flow-tested for mid to high range performance improvement
Use 18-1989K Thermostat Service Kit
Service Kit for 18-1989 Thermostat Housing
for replacement parts
and throttle response.
CYLINDER HEADS
High Performance
Up to 60 HP increase over OE cylinder heads
185cc intake runner/ 62cc exhaust runner
72cc combustion chambers
2.02 intake/1.60 exhaust stainless steel valves
5 angle valve seat cut
18-4502
18-4503
Double drilled intake mounting for either standard 12 bolt
Aluminum cylinder heads sold in pairs only
Cast Iron cylinder heads sold in pairs only
GM intake or late-model 8 bolt Vortec intake.
Custom engraved with Sierra High-Performance logo
OE look
Accepts both perimeter or center bolt valve covers
Lightweight aluminum suitable for freshwater or closed
Corrosion resistance heavy-duty cast iron castings
566
cooling applications
suitable for saltwater usage
Fits 5.7 & 6.2L small block GM V-8 applications.