View Full Version : General Q & A
- 525 sc valve cover gromets
- Does anybody run twin EFi engines with multiple fuel tanks?
- I need to paint a couple of aluminum pieces. What is the best spray paint? thanks
- used pro chargers in classifieds?
- Pyro's and O2 sensors
- If you ever cut open a PCV valve
- Verados and DTS
- Manifolds hit headbolts.
- Cockpit Communication Radios
- 950hp n/a twins...
- Exhaust riser adapter / spacer question
- which head gasket Mark IV - cast iron heads
- Question on GIL exhaust/turbulator
- Trim Tab re-install
- Cam selection
- modified 502mpi intake on 502 dyno session at my shop
- mpi and efi intakes?
- Head Gaskets
- Q
- HVAC question
- 1 inch longer head blots for darts
- Thru hull fitting for trim cables.
- wanted Diacom record file of stock Merc496ho idle to WOT
- Boat city prop??
- Iron VS Aluminum heads
- #3 drives on TRS BOAT IS IT WORTH IT???????????????
- Camshaft for Mercruiser Cyclone 440hp
- 454 mag piston dome cc's
- Gen v fuel pump
- GGB muffled exhaust tips?
- AN fitting size
- Builder used different cam than specified.
- K-Plane 280 plug
- Mercruiser 377 Blues
- Dart big m sportsman head gaskets
- 460 Commanders to a Bravo drive?
- Question on fuel lines/hoses - non coast guard approved
- TBS 871 to BDS 1471 questions?
- 1997 7.4 bbc
- Marine Lubrication Update Thread
- LeakProof
- imco extension box question
- Effects on cam advance/retard
- cutting runner length of 502mpiMag
- 6.2 mpi
- 42 Tiger adventure begins!
- Ge wiz. What am I going to do with all this lottery money. I'm going to win.
- why stainless steel rocker arms?
- Transom water pickup any advice ?
- Diesel offshore racing boat
- Input on which roller rockers - BBC
- 1990 Guest 2540A charger documentation
- 454 Build Help Please
- Outdrive repaint what putty can be used ?
- Solid roller lifters with bushing wheels whos running them in a high lift cam .750+
- Where to buy Transom HD Assemblies? A business is jerking me around!
- Mercury 700 SCI & Whipple Upgrades
- Merc engine start/control help
- SBC cam spec help!!??
- For the LS engine lovers
- Stock Oil system routing. 420, 450, 500, 525sc.
- Will the bi-directional circulating pumps work the same?????
- bolster seats
- Which carb adapter plate? Merc 454
- CFM on the 500 EFI Heads?
- average price on removing and reinstalling twin 502s?
- Impacts of hitting rev limiter?
- Spark Plug Recommendarions
- 525sc
- Distrance Between Transom and Stringer Mount Bravo
- 06 496 Mag exhaust, stock or not??
- Best 33c cable?
- 93 scarab sprint 18 with a 3.0 lx and alpha1 gen 2
- Scat stroker kit quality question
- 502 MAG EFI MEFI 3 wire harness
- Mercruiser 454 serial number info
- Exhaust systems
- 350 mag exhaust issue
- 525efi - mechanical fuel pump oil change
- Clean up engine wire harness
- Are Strykers any good??
- Change oil and takes longggg time to build pressure
- ehuast tips
- 2.25 valves too big for 454
- 500 efi ecu upgrades what did you gain?
- Boat detailer recommendations in North Dallas
- HP525 ECM Question
- Roller Cam Bearings?
- Looking For Advice On Hydraulic Steering!
- What's out there for big sea strainers?
- Bulldog cam problem
- building 375-400hp 383 stroker
- K-planes travel question ( angle )
- Gen VI oil valve question
- Drive height question/Prop Slippage
- Read this before posting in this section!!!!!!
- 496ho exhaust
- Soot on transom after fuel filter change
- Battery explodes! Why?
- O2 sensor question?
- hylift johnson lifters.
- Texas Winterization
- Need electrical diagram help 03 496 MAG alternator wiring
- Liberator 241 engine options
- 502 mag high pressure line
- Piston dome cc
- UPDATE! Water driplets and stains inside SS Exhaust riser
- LED Transom Lights
- Drives..turn IN or OUT??
- Converting an old school Gale Banks Twin Turbo system to modern technology
- Need some gimbal parts before installation advice please
- need a little 496 winterization help. kinda, and another question.
- 500efi power steering
- 500 efi engine badges
- Milling of an intake
- Most hrs on a Gen 1 verado 225, 250, 275 motor
- Piston pic.
- switchable exhaust tips vs silent choice
- Oil Pressure Question... Nothing broken but chasing an oddity
- Teach me about Exhaust riser angle Please.
- Engine/Outdrive Swapout
- 1989 23 nova xl wellcraft side engine vent inserts????
- Rods
- Need 525 EFI Flush Kits
- What's this ?????????
- Widebands
- Bravo Bellhousing to Inner Transom Plate
- File fit rings
- Head gaskets
- Log to Centerise Exhaust Manifolds
- Manley Nextek springs? Anyone?
- Procharger boost 91 octane
- What type EGT probes
- Merc 420 to 525sc in a Formula 242.
- Pulling a motor from the flange of a 177 wieand
- fountain 33 vs 29
- Exhaust issues Gil/bulldog 500 bbc stainless risers
- intake suggestions for 365 mag build into 420/450hp
- Cross over kit
- impulse II cam thread
- Milling heads for compression
- installing gil manifolds
- Torque #'s
- pump gas 540...
- Cam choice
- What do you think about this engine in the calasifieds 1209HP
- Dash redo, gauge less options.
- Single engine in a Four winns liberator 261?
- Getting water to a motor with no outdrive on it??
- Melling 10778 oil pump question
- Cam question
- 525sc cam info?
- Ok, we need a new thread: quench
- Looking for best Bilge Paint. Can you recommend?
- gen 6 555 ci oil pans
- Starting motors that havent ran since 2007...
- 7.4L MPI Won't Start
- Go To Bilge Pump and Float Switch?
- Anybody running Gen 1 verado's?
- 500efi thermostat replacement kit
- Jandsafegard Interceptor Knock Controller - Anyone Using This Product?
- Ignition dead on 525sc
- Dead ignition on hp500efi
- Are HP500 intakes brass lined?
- 310 cc heads
- Is filling fuel tank really necessary when winterizing?
- 6.2 whipple stage 1 ecm reflash
- Need A Part #
- Detonation Issues - "Why is the Gen 7 496 such a bad platform to build"
- cast aluminum merc 8 quart pan oil pick up part #
- Water Flow - flush kit vs. lake
- 575sci running rough
- Will low oil hurt 500efi?
- Saginaw to Brazilian actuator question.
- 500EFI Intake modification/adaptation to Pro Flo EFI
- Water driplets and stains inside SS Exhaust riser
- Tuningparts for newer 8.2 Engines from Merc available?
- Will a plugged exhaust cause an engine misfire?
- 377 Blue Scorpions
- Compression test readings
- Shifter plate question
- 500 EFI fuel pump oil?
- Inconel exhaust valves, when do you need them?
- Aluminum head corrosion
- Procharger fuel system
- Do the headers on 2001 500EFI have ports for oxygen sensors?
- Spark plug gap with MSD
- Carb guys and/or fuel issue
- Pulling an engine TRS SETUP
- deciphiring Crane gold rockers
- -2 Outdrive performance gains
- Fountain 29
- X-Power Drive
- KE lightning top end kits
- Noisy clanking exhaust tips.
- Power steering pump delete kit
- Cooling system
- 525 coolant recirculation pump
- New to forum. Need help
- Merc 8.2 HO Flame Arrestor Flange Diameter?
- Boat Lift Question
- Power Steering pump delete kit. Gen 6 motor with serp belt.
- Locate a PROPSHAFT DYNO in Midwest???
- Reality check for repair quote
- fuel injector cleaning&testing
- rebuild time
- Clogged block drains
- 500efi
- 42 fountain staggered conversion: need exhaust help
- WHat ECU to use, Megasquirt 2, Microsquirt, Accel 7 or other?
- How many hours on bigger power stuff?
- E10 or E15 ethanol blended fuel and aeroquip/earls stainless fuel line problems
- Anyone have personal experience with the Professional Products/ Pro-Comp intakes?
- Engine alarm Help
- 454 making 525-550hp
- Lighting Header repairs?
- Full Hydraulic Steering
- Offshore style engine mount
- NLA mercruiser exhaust valve seals
- surface drive on a pontoon?
- MEFI 3 (16237009) vs MEFI 3 (16236999) help needed
- Procharged outlaw 25, no getting power to prop
- problem with aftermarket cylinder heads.
- 502 pistons
- Top end work on blown 540s - what eats exhaust valves?
- Inteior Vinyl Surface Mildew Remover
- PSE superchargers
- Differences between Gil exhaust manifolds and 496 exhaust manifolds?
- Electric fuel pump question
- Engine builder/ Machine shop in michigan???
- Livorsi Control Problem
- 496 Stroker...irratic rpm..stalling
- Looking at a used boat purchase?
- Feedback on Arizona Speed and Marine 575SCi calibration
- Crossover pipe (coolant) question.
- Out of the box heads?
- Price to have motors pulled?
- Whippled 500efi refresh
- Mercruiser 496 Starter issue
- 540 engine vacuum question
- What do these bearings tell you?
- Sea strainers and blockage ?
- 100LL aviation fuel in a Mercury 300x
- Rusty bilge water.
- Cam Suggestions for a 540
- gpm of water to run a mercruiser on hose
- How do you test/diagnose fuel injectors ?
- Prop Shaft seal in a SXC 4
- Engine rebuilders in the Chesapeake region.
- 502 efi heads