- #7 cylinder 0 compression
- Holley 2 circuit or 3 circuit for marine application
- Where to plumb this small fitting on Hardin/Gil 9" Riser?
- Mefi-3
- are these 454=440 cyclones
- exhaust
- HP500 carb onn a 489?
- head choice
- Oil Extractor
- Bravo XR, LH or RH failure rate
- dry joint exhaust ???
- SUPERCHARGED 588CI 1050 or 1150
- Merc exhaust elbows - stainless vs iron
- Opinion needed on a 496 cam
- Should I Be Worried??
- Crankcase Breather for Merc 490HO Oil Fill Tube?
- Thunderbolt V
- Analog Tach reading off
- repower a baja
- Two Stupid Questions...
- Rockford Fosgate Marine Speakers???
- Baja V8 swap
- HP 600SC. What am I buying?
- hp500 cap and rotor
- guesses on power?
- Engine Hours
- Adjusting Idle on a 600SC
- hp500 oil and filter change
- Bravo 1 to XR shorty
- stainless cable 33c k-plane cable covers??
- Promax 300's snapping alternators off..
- 525 one side hot
- Pachanga distributer and coil
- Kicker Marine
- gen V gen vi block swap
- Clicking,tapping noise after shutdown
- 94, Merc 454 Mag water pump.
- Issues with 496 CMI Sport tubes??
- Stereo amps in bilge
- powerquest 380 bow lift
- Valve covers and roller rockers
- Power Steering issue....
- Best oil pan gasket??
- Wet Sounds equalizer and IR repeater????
- how much of a cam with 496 manifolds
- New install of sea strainer?
- where to buy a simple snap / strap
- Help finding a thru Transom Water Dump..
- gen IV 454
- speed and custom marine
- hvh carb spacer?
- Annodes
- Control Panel Upgrade: Fuse holders or Breakers
- Trim tab switch upgrade wiring help
- vovlo penta to merc??
- hydraulic steering install
- mercury trim and tab indicater
- Oil Filter Housing Gil Marine Gaskets
- Fuel system
- 598 CI AFR 385CC CNC BBC Heads!!
- 502efi's oil temp senders
- Crane Hi-6m Manual
- gill hp 500 exhuast
- Question for the cam guys
- 741 cam specs.
- 2V vs 5V stereo amp output leads
- Mirage Plus prop fit an Alpha drive??
- Silent Choice - is reversion more likely at idle or at cruising speed?
- 1/2" fuel tank inlet
- Blower Motor Exhaust Manifolds
- 496 Fresh Water Pump Assembly
- fuel filters/screens on 454 mag mpi's (where)
- 500 EFI - vapor lock??
- K-Plane Indicator Cable
- Oil restrictors or plugs?
- Hydrolocked 420
- Stock Gen VI valve covers versus HP 500 covers
- 496HO Fuel Injectors
- Line up Drives.
- Will new emissions laws effect custom boat builds?
- Strange Engine Noise
- K Plane Indicator Cable Bellows?
- Will a Merc outboard prop go on an Alpha?
- Need Help pls--Reversion!
- 525 Efi Spark Plugs
- High water pressure
- Trim pump set up . .questions
- Chrome Air Intake Scoop ?????
- 5.7 sbc exhaust manifold
- Fuel Tank Placement
- help full tip
- What octane fuel for 420's?
- 454 mag water hoses? where to get affordably!
- 2x18 combo oil cooler
- 500 EFI Fuel Pumps - Formula
- exhaust manifold block off kit
- GPS Speedometer
- Ateco 500efi upgrade
- Oil Pressure Gauge Pinned
- 588 CI BBC 14-71 littlefield/intercooled
- Remote oil filter
- old transducer - new depth gauge
- Jet change needed?
- spark plugs
- Exhaust tips with internal flappers
- just for fun: cheapest way to make 800hp????
- Would this work?
- Through Hull Exaust trim
- gen II to bravo one
- reversion questions with a 741 cam
- outboard installs
- V-bottom vs CAT
- GT Performance Engineers Upland Ca...any bad dealings?
- Looking for Dana Headers...
- Think I need a different prop?
- Buying Motor from GT Performance Engineering. Have Tech Q's
- Valve Spring Spec for 500 EFI
- fuel/water seperator w/drain
- nose cone epoxy
- what % of h.p lost between crank, and prop.
- Hinge pin removal. Drill?? Any tips welcomed
- adding a portable get to a fountain
- Anybody running Lightnings with Silent Choice or Corsa?
- 500EFI Valve Spring help.....
- Gasket ?
- 30 motion
- Mirrored Plexiglass
- Mercruiser Parts Webite???
- Carpet adhesive
- Boat Covers
- Boat Covers
- approximate horsepower!
- HP-500 what RPM max.
- Wet Dream II
- zero balance BB flywheel
- External steering with Hynautic helm
- wipple?
- Need advice/opinions please on buying this boat.
- Boat ladder
- Mercury Racing 700's Very Hard to Re-start
- 525's & Northstar 550
- Rigging Question
- NEED HELP! - Bravo Engine Mounting Question
- oil cooler install question!
- Bravo Transom Assembly Re-Installation
- Gen5 or Gen6 differnece
- Engine Coupler Issue?
- Water pickups
- Need Quick Answer Before buying this boat??
- merc smart craft
- Which valve springs?
- Latham rams on imco extension box arms?
- Priming Engine with Oil
- extended runner mod for Holley Strip Dominator?
- How to tell what gen big block you have?
- Bravo Upper Drive trim guide crack repair
- South Florida Dyno?
- Aluminum on transom?
- how much can you drop comp with a head gasket??
- Trailer fenders
- scarrab HELP
- Prop help
- Through hull water pick up epoxy
- New Motors: 540 carb Natural asp. or 454 blown?
- Decisions, decisions... square or oval port for 489?
- msd. vs. delco dist
- crossover cooling systems
- Carburetor recommendation
- Full closed cooling system.
- Small rocks in oil filler tube???
- Wanted BigBlock Chevy Marine Performance by Denni Moore
- Cam limit before reversion occurs
- Anyone know the factory torque spec for a 500 EFI rod bearing?
- What valves are used in the stock HP500 heads? 1999
- Trans fluid?
- Merc/CMI service bulletin
- Cam Choice
- 496/525 top end
- These gaskets don't look correct
- Race Fairing
- 500 Efi Drain plug locations
- drive yoke
- Crack in 454 Alpha, your thoughts please
- Exhaust Dyno Charts
- Making Power with engine temp?
- Exhaust manifold Merc BBC stainless bolts from ARP
- OMC to Mercruiser swap question...
- computer reprogram 454
- mercruiser Denso Harness info needed
- Water circulation issues
- Refresh on HP500, which gaskets and what oil pump?
- camshaft id
- HP500 Heads and goofy rocker...???
- 500 EFI alignment
- 42'sonic trailer
- Sony Subwoofer Installation
- 454 to 496 Dart p-1s what cam?
- bbc 1.7 rocker arms
- intakes?
- 225 Merc Opti max question
- Engine not level?
- K Planes on Formula 242
- Eickert Tail Extention
- 502 MAG compaired to the 454 mag
- BBC alternator brackets
- No swim ladder, OK to step up on K-planes?
- Blue Motors
- Mercruiser Stainless Risers
- need help with a wiring schematic
- dry exhaust questions
- rpm airgap
- Raw Water Pumps
- bb chevy tapered exhaust manifold spacer
- Bravo shift cable bellow
- SBC with AFR 180cc
- Serp. belt conversions really worth it?
- Fuel Lines Fittings
- Will stock Merc/GM windage tray clear stroker crank?
- Polished Stainless
- MSD Ignition
- Help - looking for water 525sc water pump part
- Gimbal Housing?
- Braided Line / Fuel Permeation
- Jetting my 250 B&M and 1050 Carb...
- 502 mpi procharger fuel system questions
- Indmar Aluminum exhaust manifolds and risers for 454
- Recommended 496 pistons and rods?
- SBC Carburetor Upgrade
- Help identifying these parts!?
- Marine Machine
- no spark (msd ign)
- bowtie block
- Calling Oil Expert
- hypereutectic pistons
- what thermostat
- Pulleys for 454 mags?
- Want to put my boat in a slip..... How to keep green buildup off it?
- Props on #6 Drives
- Best Oil for Merc 700's
- whats a good flat tappet cam for a Gen IV 454 MAG?
- Raw Water Pump Mercruiser vs. Sierra
- Will this prop fit a Bravo 1 drive?
- Gas stains on the side of my boat ?
- Rebuilding Gen V / VI BBC book finally reissued
- bezel
- Formula 242 vs 252
- AquaCraft V24 Gas Vee conversion
- Leak down test, what are good numbers?
- Clearancing rockers for valve covers
- boarding ladder who makes it
- Switching Exhaust Tips
- Trim guage
- What fuel:oil ratio after removing oil injection?
- Pressure testing and repair of headers
- Raised x
- Gen VI BBC Merc 454 MPI questions
- Big M Dart block..is it ok for marine use??
- aluminum swim platform
- Amsoil SVG Sever Lube Water Tolerance?
- Need to know correct head gasket to run Mk IV head on Gen VI 454, please
- Best Closed loop kits for 502mpi motors?
- I won't know unless I ask...valve springs on 088 vs hp500 head
- What fuel pump for 1400 hp
- Need advice on what GPS to get
- warlock running video.
- Mefi Tuning Software
- Best Prices for OEM manifolds
- hynautic steering question
- props in or out 40 fountain non step
- 525SC Carb jetting
- keith eickert valve covers will they fit ???
- where is a good place to sell 502mag motors
- External steering rams?
- Smartcraft and Garmin GPS
- New Guy old question: What flat tappet cam in a GEn5 MPI?
- fuel pumps
- water temp and tach problem????
- Good cam upgrade on my 502
- gaffrig gauges
- Classic 18 or U-19, which should I buy?
- my winter project dyno sheet
- dock / mooring lines
- McLeod Bolster Switches - Where to buy?
- Cam size with stock rockers
- Rebuilding 1982 Wellcraft nova II
- need mufflers
- Pro Charger cog belts
- Who to have re-powdercoat a swim platform??
- Stereo headunits, preout turn off/on option
- steering issues
- Warlock exhaust finished!
- A/N Fitting
- What octane for stock 7.4 MPI
- Sea water pump conversion
- Oil coolers
- Oil Filter Questions
- Pretech 33c control cables
- Solid Motor Mount Setup?
- Need help with throttle cable linkage on new carb
- unknown source of shake
- exhaust temperature in water jacketed headers
- Best 500 efi air cleaner?
- Bravo Bellows
- Buying a 22' boat, Survey? Leak down? What should be done?
- Ext hydraulic steering on 38 fever
- What fuel pump to use
- B&M 250 thermostat housing
- Sea Water Pump KIT
- Installing GPS/Depth Finder
- Cabin fans and lights?
- E-Top Plumbing
- Help??
- XR Drive Stickers
- Bearing clearance spec question...
- Explain This
- Leather Dresses
- Stock spring replacement for 502MPI
- Where is the 90amp fuse on Mercruiser
- Best prop for a Bravo 1 drive.
- Where to install water pressure sender
- Where to install EP-60R Fuel Senders?
- Merc Y-Pipes old vs new style
- Which of these two gauges would you install if room is limited?
- Pressure Test Headers
- steering
- need some help
- Exhaust for Whippled 540
- Lighted Bev Holders ?
- Removing Apoxied Hatch Latches
- weiand 177 for bbc question
- 200 rpm
- Advice Needed - Converting 3 to 2 motors
- Deck height
- switchable exhaust upgrade?
- What drive is this?
- your thoughts on these heads!
- Oil filter housings
- Sea Water Pumps
- 454/502 MPI MAG injector orings
- cam help
- Flagship 572 Marine details & prices?
- Seals for dry throught transom exhaust
- Older 5.7 HI-Perf EFI Horsepower
- switchable exaust
- 32 dominator port engine
- 350 upgrade question
- Cylinder bore job
- Cryo-Treatment
- Cmi Sport Tubes Or Gen X
- engine rotation 502mag single motor???
- Another Blower motor combo question
- 500 EFI lifters?
- Drive shower recommendations
- tall deck 454
- Procharged 540 Build And Fuel.
- spark plug Q
- Silent Choice Solenoids? swap them???
- baffels
- 600HP LS Marine Engine
- 454/502 MPI MAG crossover?
- TRS Engine Harness bracket and wireing
- Carb Jetting - 350 magnums
- K Plane trim switch - any ideas where I can source one?
- K-Plane lines
- Possible Upgrades for a 7.4 Merc
- new stainless marine tips installed
- Mark IV oil relief
- hydraulic steering helm-char lynn #?
- Good offshore magazine
- Steel or aluminum
- My Winter Project Is Done
- What is this??
- 2000 thunderbolt timing module wiring???
- Gen VI oil filter relief valves
- Helm ???
- graffig gauge
- A/F ratio and 10% Ethanol
- merc.,it's free again program
- Outdrive wont stay up
- shore power
- Gorilla Hose by Goodyear
- bolts
- Cleaning Carbon deposits from Valves?
- Huber fluid levl?
- actuator covers...
- Who's running stainless marine manifolds w/standard risers
- 454 Mag
- Sea pump assembly lube?
- Stellings VS CMI
- Thank You Mercury Racing
- Removing oil cooler lines from cooler
- 525 headers
- Compression of 525 EFI's
- A/F ratio
- Camshaft Dimension (length)
- Balance and blueprint worth it?
- blocking off water pickup for speed gain
- 454 questions
- 502 MPI upgrade
- Should I Get my 502 Supercharged?
- Should I Get y 502 Supercharged?
- alternator upgrade 55 AMP vs ?
- Epirb
- new shifter came today and got a little more done on my upgrades
- Closed Cooling
- Decal Partnumbers Bravo Drive
- HP 500 cam upgrade
- Mercruiser 600 SCI Headers
- transom water pick up
- 500 HP Lifters
- Flat Panel TV mount
- 502 carb needed
- 502 mag mpi
- Progress report
- 502 EFI/MPI Injector Q
- Water in oil...
- 502efi upgrades
- New engine rod knock...........
- Throttle body gasket change?
- Source for HP500 EFI rings?
- 502 mag wont idle
- Dyno report question regarding Fuel-A
- Is it possible to shorten SS risers for switchable exhaust?
- 496HO swap to 525EFI
- hp6 filters??????
- Velvet drive reversal?
- Bringing Back a Gel Coat Finish
- Winterization 496 Mag HO
- 502 casting
- Bell housing drive coupler???
- HP 500 carb circ pump?
- 496 mag ho water pressure
- Plunbing procharger intercooler
- looking for suggestions
- HELP! Dead Battery, Can't Open Engine Hatch
- Props for Sunsation32
- Props for Sunsation32
- hydro hoist users
- Flame arrestor mesh
- Helm steering for #6 drives
- Hull bottom
- 496 sea pump impeller
- Quick question on exhaust
- Deck/Building software
- Supercharging a 496...
- vero Beach, Fla??
- 781 or merlin heads wanted
- 454
- 1986 stinger 312
- Any ideas on props?
- NEED some exhaust Help Pls (496Mag)
- Prop size vs pitch question
- SS fittings
- Another Oil related article
- building a sbc motor
- Bell housing measurement
- Good blower test results here
- help finding Mercruiser HP parts
- 525 Efi Harness
- cross overs /thermostats why?
- sea pump
- MSD on 502 Mag MPI
- 502mag cam change or hp upgrade questions
- 502mag cam change or hp upgrade questions
- holley carb guru
- B1 coupler?
- K-Plane Installation
- whats so bad about leaving yor boat in full throttle when u go over a big wave
- What is this frankenstein engine???
- covering wire holes
- cracked head??
- Power valve and jets
- External power steering cylinder failsafe
- 454 Mags Need help
- 502 MPI Cams
- Quick drain air fitting question
- Rusty water when I drained the cooling system
- puke tank.
- help choosing crossover
- EMI Exhaust conversion to dry
- Selecting a power inverter.
- PCM 555 Service manual and the 525efi
- 454 vs 7.4
- What is this?
- Borla Mufflers
- Will Merc 10-qt oil pan work with offshore mounts?
- Need opinions on mild 489 build
- 93-97 99-02 454mag where is 98?
- Whipple 454mpi mag
- 496 HO forged internals?
- Scorpion 377 flame arrestor questions
- Cutting your skegs off???? MPH gain vs handling loss????
- 3 Bladed Speedmaster Propellers
- motor is almost back together finally!
- 454 Magnum questions...
- Dyno- Ethanol Fuel vs. Non-Ethanol Fuel
- zz502 vs. merc 502mag
- Exhaust condensation. How much is normal?
- Manifolds EMI or GIL
- 454 procharger compression ratio