View Full Version : General Q & A
- 454 Stroker Crank
- Standard v Aero style v hard line Engine Plumbing
- carb hp500 heads
- Rear Mount Counter Clockwise Starters
- Intake manifold on 525's
- Question for the guys running twins:
- Scat cast cranks
- 555 pcm fault codes
- Towing with Props On
- Used valvetrain components: Hours vs RPM?
- Help with RPMs
- Inter Cooler Horsepower increase
- Whipples on HP500 - Need Temperture!
- Water in 502 Mag mpi oil
- Is Melling 10777 Oil Pump still available
- epoxy for transducers?
- what is to many hr on a set of hp500
- SCX Right Side Cavitation Plate Pitting WHY!
- Getting hours off of 500EFI while out of boat??
- Should I paint aluminum intake?
- Fountain fever windsheild replacement
- procharger ?
- NXT Transmission Fluid Change
- Drive shower
- What's the latest info on Mobile V-Twin 20-50?
- Who Makes theses Turbo Shields in California?
- Gen V 502 MAG EFI head removal & rebuild . Any tips, tricks, hints, ect.
- Alarm and engine stall at idle
- precision efi 496 ho ecu reflash
- dyno question, engine question
- Losing coolant over 4000 rpms
- fuel capacity
- Deck Temp Vs Deck Color
- Best Roller Cam for a 1000hp Blower set up?? With good idle??
- Mercury 525efi fuel filter
- 383 stroker stalling coming off plane
- GM Pushrod Length ?
- HARDIN MARINE CYCLONE EXHAUST input?
- Weight of shortblock ??
- 600 sci fuel pumps
- Engine Dyno Prop Shaft
- Raylar 496 kit
- Super Chiller Performance
- Tach not working after new DUI dis
- what starter for larger cubic inch?
- big cam won't work with silent choice?
- How do you bypass the VP 4 digit startup code?
- How do you initially time a BB before startup?
- V belt squeal
- 33 oulaw 502 distributor question
- transmission question
- 2002 Merc 350 Mag EFI
- carb base plate for Gaffrig flame arrestor help
- Hyd. steering very twicthy feels terrible ?
- Valve set for 500 EFI ?
- 96 Rinker 232 Engine Swap
- 496 Mag HO Late PCM
- Pics of transom mounted pickups?
- Different G.P.S. accuracy from devices?
- out drive protection ?
- oil pump help
- Small block Chevy cylinder head ID
- Crower s-steel rockers help!!!
- Shift cable adjustment.
- 496 ho mechanic in central nj
- 502 mag mpi water in oil continued
- 525 head bolts torque?
- Cooling water is slow to flow, should I fit a balance pipe?
- Summit Twist-tite hoes failed
- BBC Guys, please read
- Gen V Merc 502 build advice
- Using 4 blade SSM III or IV props on a SSM II
- HUGE favor… What is this CC 245 Limited Worth??? New Guy! Video included!
- Don't know jack about a BBC, please help
- What size blower do I have?? littlefield 10-71 or 12-71??
- Hering Props
- CMI gaskets
- Is anyone using an anti-cavitation Oil Pump?
- 496 Ho Cranks but doesn't like to start
- 525 sc blower belt
- Stiff / Hard Steering
- how much? pair of 525 xr drives,its props 55 hours
- Dana Marine exhaust on Volvo Penta 8.1Gi
- Drive trim pumps for 6 drives
- Cylinder ingesting water
- Using Marine exhaust on an Engine dyno?
- 525 fuel pump relay? Please Please help!
- KE fuel pump upgrade concerns
- looking for exhaust for 454 mag
- 575 and 850 Bottom end
- head gaskets sbc vortec?
- 525 head gasket?
- GPS in a 2000 Formula 382 stepped dash
- Where can I get this kill switch key?
- Nose cones slowed me
- Very strange trim problem.
- stuck valve
- Are vortecs sufficient for a 383?
- Gaffrig Tach Reads High - 496HO
- Dry exhaust mufflers
- wellcraft with arnesons
- 496 HO Cranks but wont Start
- 02 496 mag ho power and speed loss
- engine spitting milky oil
- Electrical issues: voltage drops when electric motors turn on
- 7.4 mpi
- Iron Man boat...LOTO
- Merc 1075&1200
- water dump in tail pipes
- If I were a 1986 Merc resistor wire where would I be???
- My Gen 5 454 has gone down 4 times in 3 months
- neautral safety switch in controls?
- Trailer Winch - Need info
- 496 HO with CMI Sport Tube Headers
- Old school Thunderbolt question...420HP
- Really confused about bearing tolerances...
- If sand passes through sea strainer will it pass through closed cooling components?
- I need Seal Kit for Marine Machine Steering Ram
- Where to buy OEM BBC parts??
- 502 Mag Mpi water in oil......
- Question on my Winterization methods.... 502MPI
- pro systems carb
- Volt gauge issue
- Painting Gil exhaust
- 5" clamp on mufflers and suggestions?
- trying to get 700hp from a talldeck 540
- Ls1 upgrade questions
- LOTS of prop slip
- starboard motor will not start
- Velvet Drive 72 LHP Transmission
- Need a good carb guy near Sacramento to help tune motor
- swim platrorm
- Raylar Engine?
- Down on power, speed?
- Oil cooler too big?
- Help, crank to block distance, BBC
- Favorite Bilge Pump
- Y pipe flappers
- Hull gasket
- Closed Cooling System Mystery- Need Help
- Cmi horsepower gains over Gil's?
- High Oil Pressure from Mercury 377 Scorpion Engines
- ad 47195 inf on 2005 legacy triple 525
- Possible Broken Outdrive
- 454 - BW trans. - SSM 3 drive - please help!!!!
- Dry Exhaust
- Propeller polishing
- stock mercruiser oil cooler...directional?
- Exhaust valve seals
- sbc vortec head gaskets
- engine synchronizer gauges
- gil riser material??
- exhaust for 5.7 MPI
- Too hot? 454/Bravo running over 240F
- 502 circulation pump sparks
- Easy way to find the C.G on boat
- Starboard prop not keeping "traction"
- Norris Lake
- Mercruiser 454 - Intermittent Break Up at High RPMs
- Bo0rke down just in time for Labor day...
- 260 mercruiser starting issue
- Motor oil for a full roller motor??
- Mercury Controls Direct Replacement
- Boat Surveyor in Illinois??
- Stainless Mercruiser Risers 816900-c, good?
- Fuel swirl pot
- EMI Exhaust Performance Gains?
- Seller Rating on OSO? Im new but want to buy and dont want to get screwed!
- fountain audio/visual alarm confusion
- Who's running dual power valves?
- big chuby
- Help! I broke it!
- Cam question: More or less LSA for low compression engine?
- B&M 144 or 177 on a stock 454
- RPM difference between engines
- High idle after running? Secondaries sticking?
- Carb jetting ??
- 454 king cobra
- corsa mufflers power loss?
- 496 HO Makes Fairly Loud Tapping and Occasional Back/Mis Fire
- are parts supposed to be this expensive?!
- american offshore problem..
- How much water in your bilge?
- 454mag/wieand177 oil level going up
- Whippled 6.2 need help
- fuel sender
- 454 CI Mark IV cam Flat tappet VS> roller Question
- Vortec intake gaskets
- Cyl wall scuffing
- Fuel Pump Kill
- 1990 Nordic Venture
- Help please bravo 3 no shift
- Tether Kill switch wiring
- Engine not firing
- Water leak...exhaust boot ?
- Anyone use Lightning High Performance Ant-Reversion Cams?
- hynautic manual steering hose operating pressure?
- Anyone have a scan tool around Kalamazoo area.
- Need cam help
- mercury 525sc burning oil
- Would this oil pan and pump combo work?
- anyone know someone with a 22 icc daytona?
- bravo x u joint part#
- Carpet Adhesive/Glue Removal
- carb to efi wiring question
- Draining your oil
- Dart short block, or rebuild with what I have?
- Will a 500 EFI intake work on a 502, plug n play?
- Exhaust Gaskets, Restricted vs. Open?
- holley intake
- Milky discharge and oil mess and grinding noise
- Blown starter fuse...part number?
- dart eagle irons on 502 mpi intake
- Fountain hatch trouble
- Merc 350 crank rotation?
- Is this an iconel valve?
- Any guess on $$ for 454mag mpi's
- What is the optimal rpm for a 500hp (carb 1998)
- 700 No Start
- Can I use these heads?
- WTH is this sound coming from 502 mag mpi
- VP 8.1 trouble solved
- 350 MAG MPI...LOW IDLE @500....and RICH..HELP!
- what should my engine temps be?
- Where to get a grip mat for my swim step?
- Vibration while under way
- comp cam in a small block
- Cause of Bravo One Clutch Locked Up
- Switched to Amsoil now this happened
- bbc 460/b&m 250 single carb swap to dual carb
- Transmission Levers Hard to Shift
- Dead Gaffrig GPS Speedometer
- Shifting a BW transmission above 1000 RPM
- 454 build help appreciated
- Need wiring diagram HP 500
- Anyone tried the Garelick Active Seat Shocks?
- Changing windshield to fiberglass
- How to change a rev limiter on 454 mercruiser.
- Installing an Air-Fuel Sensor
- MerCruiser 8.1L 375HP - SELF STARTS
- changing exhaust, what shifter bracket is needed?
- To much water pressure????????
- 25 Sunsation Aggressor
- sbc cams
- Best Marine Stereo head
- Drive Trim Balance
- Please Help
- Prop question
- Mefi 5 (555 merc) software FINALLY available!!!
- where to find the hardin marine ss 496 water pump