- Help if you can
- Are all brovo gimble rings and helmets the same???
- Re-program ECU's
- GPS Spedo Question ?
- lean at high rpm??
- Trim Tab gauge
- what is the difference
- Trim Tab Question
- 454 Heads Needed ASAP!!
- Engine Stands / Shipping Crates?
- Is relocating the oil filter on a 496 possible?
- fuel system help
- holley 800 carb rejetting ???
- Mercruiser 502 Mpi Starter Problems
- Vacuuflush/head question
- iac valve issues
- Best place oil temp sender
- T-bolts for exhaust clamps
- Ignition breaker size
- HP 500 Service manual
- Need a special bravo shift cable
- Help with hatches not going up.
- oil type
- Leakdown?
- water on spark plug
- Corsa Quick And Quiet
- Need Best price on set of Lightning Headers
- Stainless Marine Exhaust SBC
- Rocker Arm Studs
- Oil Cooler Fittings
- Battery issue - or?
- Danna Exhaust or Lightning Headers
- Fastest boat on OSO
- upholstry cleaner
- HP500 power steering pump
- exhaust gaskets
- Dyno results - Nice Job Eddie!
- Throttle Adjustment
- Engine Install?
- 454 Mag MPI
- Oil Change Pump???
- Low Idle in neutral/ 525SC
- Obsolete TRS part, now what
- 502 efi No Power
- BBC Valve Issue
- engine to cold !
- Toe in or Toe out
- 502 Issues
- Help with a 72C Rebuild
- hyd. steering ?s
- 454 MAG Carb to EFI Conversion
- Silent Choice With Stellings Boxes?
- help me find a 454 block
- Rebuilding top end of 2000 7.4 MPI - a little help please
- Rebuilt Gen 6 shortblock--What's it worth??
- Head Gasket Question
- Need opinion please - and tech'y advice if you know
- Water Pressure Issue
- Holley question
- K Plane installation
- HELP 496 coolant resivior is filling up.........
- New Oils analyzed
- Hat section for hatch without scoop?
- Questions about re-power (7.4 to 502)
- corsa switchable sticks
- 496 HO Temperature sender
- Fueling issue: Need opinions/ideas where to start troubleshooting
- Longer hose needed after intake swap
- hp 500 efi no start
- bottom staining
- 525 help with water in oil
- How far can I push a set of 7.4 heads???
- my flex line is siezed into the trim cylinder....
- 575sci blower oil leak
- Water pressure
- recommend me a camshaft...
- Where to dump water?
- Water in Oil
- Cross over(water pump delete) On fuel injection
- Lenco trim tabs
- oil pan
- Exhaust Temp.
- Steering problem after Arneson convertion
- Whipple Aux computer issue
- Oval intake square port head confusion
- Flexability of Trident 202v 4" Exhaust Hose
- My 496 luck is running out, any thoughts?
- Oil Filter Change Tricks
- Max RPM on a 330 merc?
- burned ground wire
- Low oil pressure.
- Update on Gear Drive Lube Analysis Findings
- water supply hose
- Plug gap?
- Stored with throttle forward
- 454 Magnum fuel pump replacment?
- 525SC Power Steering Belt
- Head mount for remote oil filter
- 600 SCI Upgrade to 700 HP now available
- Anybody know these rockers?
- oil filter mounting.
- Play in out drive
- TRS oil line flow direction...
- 496 (supercharged) spark plugs
- Anyone have a EFI wiring diagram for 502 efi ??
- looking for a 502 gen 6 ready to run short block or long block
- best place to buy control cables
- E-85??
- pcv valve
- Trailer bunk length vs boat length
- Superchiller water pressure???
- Crankcase vapor explosion!
- Help id-ing mercury prop
- How To Increase Water Pressure/Flow?
- Prop spin?
- Alarm on 496HO'S
- What are these manifolds worth ?
- HP500 Carb Lifespan
- thunderbolt ignition timing
- Quiet
- 496 MAG HO Smartcraft Fault
- Livorsi GPS Speedo Problem
- 496HO, where to get valve spring
- Merc 180 4 cylin trouble
- Stock 502 Exhaust leaking
- setting total timing ???
- Throttle Only Button Stuck
- Water in Cylinders....HELP
- where to find 1.50:1 lower gears
- 496 leaking water pump from pulley
- CMI Hot Spot
- Ect & Mefi
- Suggestions for removing rusted exhuast manifold bolts???
- Looking for full Specs on stock 425hp 496HO cam
- 496 mag HO high water pressure... Help!!!
- 502 Mpi, Stutters At 3800rpm
- King Cobra part number
- need manuals 1996 cigarette cafe
- Supper Charger Question?
- Non-stainless head gaskets - needed for a FWC eingine?
- Drive Question. Please Help
- 502efi
- 94 350 Efi
- gear drive
- Rubber boot for ignition key.
- FLAME ARRESTOR ASSEMBLY $1,086.16 ?? for 525
- oil temp
- '06 850 SCI's Knock Sensor concern
- Any good luck with a Dana marine exhaust system
- Anyone Ever Buy Boat Long Distance
- 496 HO PCM reprogramming issues
- Fuel fill cap locks
- 572 jets
- 2006 Baja 242 Islander electric plug
- 496 height plus EFI considerations
- old B&M 250 blowers
- oil weight
- Mystery part
- Alpha One Gimbal Bearing Install Help
- Trailer bearing Question
- Spark Plugs
- Ok to leave onboard charger plugged in for extended periods?
- water pressure relief valve??
- vortech SC on a 500 EFI
- 8-71 blowers
- I need to test my CMI for my 525
- Blower Upgrade
- Edelbrock Head gaskets???
- Need spark plug and prop reccomendation, 28 pantera T-EFI502
- please help omc king cobra repair
- online water impeller tutorial?
- Kind of bad luck to day, or maybe not??
- installed valve spring height on a 454 mag
- SBC Roller rockers that fit under stock SBC valvecovers
- Stainless Marine and O2 sensors
- Moroso Omni filter
- The Perfect Lifter....
- after the sale?
- 98 525 S.C. Question
- power steering pump - broken stud
- does anyone know who raises th rev limiter on a 525?
- advice on non performance boat
- AV gas. Anyone running it in their boat?
- Exhaust system for 500hp max BBC
- Bravo 1 ???
- 575sci Lower End...What RPM?
- Blow Me ?
- Starters
- Code 73 w/pcm 555 496HO
- Lifter Problem
- emi exhuast install question.
- Powder Coating
- Help!!!
- DIY GEN III Cool Fuel
- EMI Thunder Exhaust....
- EMI Thunder oil filter relocator kit?
- 540ci to muff or not to muff
- Fly wheel, balancing ?
- Does this look like a problem to you??????
- Gimbal lube
- Runner Sizing
- carb question
- Need 525 Roller Rockers
- Revolution Drive res bottles
- buffing wax brands and buffer style
- blow or not to blow?
- block drain plug stripped
- distributors,502mpi
- Valve Cover Emblems
- Circ Pump Pulley?
- Whipple Help!
- I need drive education
- Cams
- Gen 6 HP500
- Can any one get me some info?
- blowers
- Imco Water pickup
- looking for 496 engine cover
- Water Pressure Gauges - Where to tap into system?
- Drive alignment on triples
- water in oil.. (milkshake)
- Hydraulic hosee
- Help With Prop/bow Lift?!?!?!?!
- Checking for reversion and manifold riser Q's
- Trim pump / Tab not working ? ?
- Oil temp. sending unit.
- Capping TRS gimble exhaust hole
- what cam is right
- Gil exaust
- Anybody know who has a Crane 168741 Cam
- check valve/anti-siphon
- Calling ROOKIE
- Full Time Fuel Pressure Sender Merc 496HO
- 496HO - Ran her Dry
- Shift In Polar Axis ??? Wtf Is Goin On
- blower motor cooling system
- Merc X-haust noise reducer
- 496 throttle sound
- ASR Silencer Tips
- Installing a Navman 660 with Smartcraft...HELP!
- Wiring up 6x9 speakers.
- HP 500 EFI Intake & ECM
- NGK iridium spark plugs?
- NGK spark plug heat range question
- another member with a milkshake
- New Alum. heads...port height with CMI headers? (Pic)
- Can I convert back of switches to blade connectors?
- Source to purchase A/C
- 525hp marine 496 from GM
- OMC drive fluid
- Should he??
- 7.4 Injectors
- Can anyone shed some light, 496Ho
- Help - Need high temp exhaust hose - Where can I get this?
- M-1 15W-50 Red Cap is back!
- Baja 242 Islander 496 mag,porpoise
- need help with 177 blower for 525sc
- rocker arm stud installation
- 24 Aero ?
- head gaskets
- Prop what pitch
- head gasket
- Storage compartments?
- Just dropped in a 600hp"need prop"
- Engine parts help
- Has anyone used/tried this??????
- Plate in riser of 496 manifolds...
- No Spark.
- What is this cable on the bow called?
- 600sci's and octane boost
- Checkmate Convincor Transom Angle?
- Help with indicator light problem
- napa 1060 oil filter
- 454 MAG Progharger Build
- Carb Jets On 454
- Electronic ignition cutouts
- Oil Capacity in Hawk 525
- 2006 496 mag,whers water pressure switch
- water routing
- 496 mag, alternator ,kicking out
- 2006 496mag 3500rpm beep beep Why
- Stereo options
- How many hours are "normal" ??
- Oil temp thermosat
- Prop pitch .VS. outdrive gearing questions
- Plug Gap NGK
- Max HP a 496 Gen I Cool Fuel system can support
- Fast idle on start!
- Plug Wires?
- How much Horsepower?
- TRS tranmission rebuild or not...
- Transom oil drain plugs?
- water pressure hook up
- Head confusion
- How many rpms?
- How Many Hrs From A 225 Promax
- Thunderbolt V total timing
- Any advice about hydraulic steering
- oil pressure erratic- any ideas?
- Sea water pump upgrade
- ABYC color codes
- Aluminum Oval Port heads
- Max Fuel Pressure Capability of Merc 496 Gen I Cool Fuel
- SBC Vortec heads - 062 or 906??
- 575sci rocker arms???
- 496 impeller housing
- reprogram MEFI 3
- 250 Blower linkage
- Motor Replacment??????????
- battery switch cabinet/rear bench
- I read my codes - Now what do they mean?
- IMCO Marine dealers?
- Tab Indicator fitting
- water pressure too high??
- Merc fuel pump that is mounted on sea water pump - PLEASE READ
- trim pump help
- Fountain Fuel Tank
- Seawater Impellors
- Anybody running a crane 741 cam w/ Lightning headers
- Hydraulic Steering Bleeding
- Carb Question????
- To use or not to use
- Identify what type of MEFI you have
- Clyinder Heads???????
- Fuel water filters/flow direction
- Imco or Merc HD Gimbal and Helmet
- Smart Craft System View 5000 to VesselView conversion
- Ring Seal Recovery
- 502 mag dies at idle
- Pistons for 502
- Has anyone seen this EMI risers?
- Installing rub rail insert, any tricks?
- Torque specs for rocker studs aluminum heads
- Indicator Cable Trouble
- Engine Dynos
- Dyno BSFC question
- Virgin Oil Analysis
- Oil Cooler passages
- gaffrig tach needle
- F/A ratio gauge VS reading the plugs??
- Short Sportmasters on 35 Lightnings???
- fuel injection
- Optimax fouling plugs
- Wrecked Fountains
- Raw Water pump flow rate
- pressure test gill exaust
- Fountain Parts
- High water pressure 535's
- checking coolant temp sensor
- 850's setting off knock sensor @ 3200 RPM
- Windshield Fabrication New Jersey
- Trim problem..drive stuck "up"
- Crane Box Question
- 1050 Dominator Questions
- Carbon in water passages?
- Gaffrig muffler air pump?????
- dock construction
- water temp 502mag
- Car question, Had a head gasket blow, fixed, now trying to clean oil out of radiator
- 1987 454 Mag Carbed Alpha 1 cooling question
- Clean sheet of paper, what would you build?
- Tips on video set up....
- Not Boat related--Welding copper to Aluminum?
- marinizing holley - grooving throttle shafts?? help!!!
- Bleeding hydro steering?
- anothere dump question, no water
- tune up on 500 hps
- Oil splash guard under intake
- Major Problems !!! Merc 525 Internal Flappers
- Transom mount water pick up
- Rings for a 540
- bravo one vs bravo one X or XR
- is There Anyway To Get More Power/speed?
- Do Ext. Boxes Work On Force Offshore Cats
- Side to side at idle?
- engine running rough?
- Eratic Gauges
- Seawater/Fuel pump
- K planes on a 233
- K Plane thru hull hydraulic stud thread size?
- 454 mag efi cam
- 496 mag no oil pressure
- CMI Header question
- Mesa Racing Engines Small Block Blower motor
- Steering wing plate
- GGB turn down
- Air Dock
- Pulling drives
- AlphaOne Gen II - oil out water drain hole
- alternator sizes
- Coolant in bilge???
- Lets talk props
- help looking for
- pop out of gear? wtf
- Is it possible, Im stumped
- I'm lost HELP!
- Trim Pump Hoses - Where?
- High Performance Power Boat Rental
- Two great oils and excellent prices!!!
- engine coupler
- power trim / tilt wire.
- remote oil filter / by-pass
- InGenius or MSD
- XR alignment
- oil l-29 454
- Help Replacing Indicator cable
- head upgrade for 7.4l
- Drive toe 86 Baja 320
- MC 6,2 320PS Alarm
- How reliable are aluminum engines?
- pachanga mods
- Need some help guys
- Mobil 1 V-twin Still Available?
- 40 fountain in classifieds
- ARrrgh DANA
- coast guard approved fuel line?
- Best wireless broadband?
- Ecm
- Rinda Scan Tool
- Rinda Scan Tool or Diacom software?
- 1999 Supercharged 454 problems
- supercharger blueprint schematics wanted
- Livorsi GPS speedo problem
- Run Dry Impeller
- Homebrew Tools!
- 1998 7.4 efi no start
- Need labor time estimate: upper swivel shaft
- used gil exhuast
- New cam install & break-in
- Would I gain anything porting intake to match cylinder heads?
- hp500 502 piston rings
- Source for trim tab indicator cables?
- Merc 500 EFI valve covers
- Rinda Merc scan tool
- Rectangle Port Dual-plane Intake's??
- Cupra Nickel intercooler?
- Sea strainers?
- Revolution Marine Drive Resevoirs
- OSO T-Shirts?
- Closed cooling?
- Merc 1075's
- Where to mount?
- sea pump disassembly?
- 454/420 with 496 manifolds????
- Which boat would you choose?
- rocker / lifter noise???
- Hatch cover..lighter?
- Inconel Exhaust Valves
- Anyone know what the lowest profile manifold/header is
- Splash guard??
- Broken Gimbal, can we weld it together?
- Intake Manifolds
- Water pressure
- dept sender
- Float bowl threads stripped. Helicoil?
- Thunderbolt IV & Crane Box question
- Water injection and wide band O2
- cool fuel system and oil cooler questions
- Best oil for 177 blowers?
- EMI Threads
- Oil Inside Distributor
- Windscreen
- Bomar Hatch
- Mesa Racing Engines SBFord build up
- Gibson Turndown pipes
- Kill Switch Wiring Question
- Chrysler 300 outdrive....
- Timing on a Vortec 350
- Question from a newbie.
- Naturally Aspirated Power!!
- Oil Changes
- Oil Pump Prep
- Intake manifold water line
- Thanks DMPE
- Water in exhaust
- Oil filter gasket...cannot find it...
- Water in exhaust
- leak down test on 500hp
- Bumping up my MEFI 3 rev limit?
- Fuel Pump Return Line
- merc 502 mag mpi overheating
- Keith Eickert Manifold Fittings
- New heads on stock 502 Mag
- 32 Fountain 502 props
- 454 mag cam options
- RE: me rookie ...need some ..advise
- Bravo drive coupler/Big power
- Thankyou RM Builder
- carb engine fuel line size
- Accent lighting
- Appliance repair
- Trailer Brake Problems
- 1999 30' baja sst sea water pump impellers
- 496 HO Impeller Change
- 575 Thermostat Housing
- 3 sub's vs. 2 sub's...pros and cons????
- RACEPUMPS.COM (fuel pump) anyone tried one? Repost
- Fuel Pressure Gauges
- Holley Blue pump
- 7.4LX MPI to Carb, what cam to use