View Full Version : General Q & A
- Best oil for 454 mag mpi in Arizona heat!!
- 500efi - injector tick
- 575sci issues
- Battery switch problem
- Mercury SAE 85W-90 Racing Gear Lube vs Amsoil SEVERE GEAR 75W-110
- 393 reversion
- Trailer bunks repair
- 502 MPI Intake and Injector Question
- 496 mercruiser wont crank over
- Custom stencil maker
- Four Winns Liberator Gas Springs for bilge lid
- Reliability issues? counter leg on twin alpha gen1 - & worth it?
- Normal Manifold Air Temp readings
- bravo 3 prop question
- 496 Raw water cooling?
- Milodon oil pans
- New transom assembly for an early Bravo Non-oiler, which one to buy?
- Oil Filters
- Bravo One water impeller
- Plug wires
- Good marina/engine shop Long Island NY
- 575sci Intake Manifold Question
- Hydraulic Engine Hatch Cylinder Leaking
- 350 MPI Horizon Base Timing
- Looking for 575sci tensioner pulley
- Steering pump failure
- Alternatives to running or flushing 496 on hose "ear muff"?
- GPS tracker
- Low idle vac for GM 14097395 cam in a new built 383 efi
- Oil pan baffle
- Vacuum pump and maximum "safe" vacuum
- Bravo 3 leak at top cap
- Newer Full hydraulic steering upgrade
- Recommendation for Fuel Pressure Gauge Kit
- Mercruiser Alternator upgrade question
- Hydraulic steering turn radius?
- Exhaust Cooling
- Mercruiser MCM 260 350 CID water in oil
- ZZ502 valve train question
- Swain Coatings
- Bbc 509cid fuel line?
- TBS 250 EFI Conversion One TB or 2?
- Crane 741 cam timing
- Stock 8.1 496 rebuild, balance rotating assembly?
- V-drive steering
- Plumbing Electric Fuel pump for Fuel injection
- KN 3002 filter
- Lovette 900 bilge pump
- 10 pin cannon plug
- 496 Oil Filter
- 502 Chief
- Bell Housing
- M1 oil filter question
- Engine Seals HP500's
- 502 Mag MPI Vortec Heads Swap?
- Indicator for Mercury racing Kplanes
- Bravo One in gear out of the water on hose.?
- Best 33c Cables these days??
- 700 sci top end help
- Crane roller rockers
- Hp525. What would u do
- 500 EFI No beep/fuel pressure
- Manifolds for a 900-1000hp Build
- Cooling system
- 502 Full Cooling System
- Proper "ear muff" engine flush ?
- E 15 going on sell this summer
- Break in oil suggestions
- CMI split tube clamps.
- Outdrive Fluid Leak/Expansion
- 41 Apache Props
- Oil change and engine warm up
- Running 496 Mag on water hose?
- Electric Power Steering Pump
- 1/2" fuel tank pick up tube
- Mercury cleaver prop covers
- Bravo 1 - weak links
- Houston-SA-Aus area engine shop?
- 502 mpi calibration
- Offset lifter bores in roller blocks?
- 350 small block heads
- Vapor Lock Quetion: Hooking up Gauges on the Rail
- water Pressure
- 2007 Mercury Verado 250 FSM casing over pressurized and burst!!
- 502 496 500hp 525 540 most reliable power
- Short deck intake on tall deck engines?
- Mercruiser 454 Mag EFI Performance Chip
- Looking for a tuner in Florida
- New intake from Holley.
- Service Manual
- 575sci backfire and stalling intermittently
- Dry tails
- mercury 525EFI backfiring loss of power
- Getting ready to rig my Boat, any pro tips on getting everything sealed properly?
- 502 Mag plug reading
- Cam Upgrade
- Restore old mercruiser 454 mag carb (Italy)
- 1998 502 Mag Wont Start
- Bravo 1 coupler
- Timing marks ?
- Volvo Penta 5.7 spark issue
- Mercruiser VS GM 502 flywheel
- Exhaust Risers
- How good are 3rd party water pressure sensors
- steering fluid coolers
- T-stat oil coolers
- Donzi hornet3 repower to 502 questions
- Header bolts /Correct anti seize
- 3 Blown powerheads in 5 years
- Ecm
- DIACOM Codes - Need help
- Reviews or opinions on hardin cyclone headers
- Sniper for 540
- Trailer bunks and keel rollers
- Power trim toggle switch replacement, what amperage is needed?
- 2005 496 mag crank no start
- BOOSTane ??
- Cool Fuel plumbing question
- MEFI Programming
- Header block and blower cooling plumbing
- The Right Prop
- oil pan drain plug thread size - '98 502 MAG MPI?
- Stelling questions
- 565 EFI intake on a 500 EFI?
- Dry joint to wet joint conversion?
- 496 HO value
- To Raylar or not to Raylar?
- Searching for 27 Excalibur (nap)
- 8.2 mag ho time for headers and tune?
- Sea Foam yes or no?
- 454 TBI Motor needs a top end
- Mercruiser 350 cam selection
- Engine angle
- First post: 2021 Monterey M65/ 400 Verado
- Supper charging 377 scorpions
- Merc 520/ 540 / 565 General Info and Power numbers
- Electronic battery switch?
- Good compression on 8, High leakdown on 1 cyl
- Is anybody using turbos in their stern drive boats?
- Plug wire crimper???
- Who wants to dyno LS motors
- 1.6 or 1.7 rocker question
- Radio communication
- 10 meter turbo restoration
- Dana 1000 cylinders leaking
- Mark IV 496 blower motor build
- Crower shaft rockers?
- 12 v cooler box VS dc fridge
- What would be the best cam?
- Donzi 21 hornet trim tab placement.
- Heads / int cc’s? Vs flow Vs cross section Vs air speed
- Just need general info on a motor and boat set up I'm building
- Tennessee Real Estate ???
- Going from 350 carbed to 383 MPI performance questions
- Stereo head unit
- X Dimension Fountain 29 sportfish
- Dana exhaust
- v8 quad cam vs v10 quad cam?
- GM really screwed the pooch on this one.
- What have I got? Haha
- Stainless gen 3 dimensions
- ENGINES HEIGHT + X DIMENSIONS (With pictures)
- Ducati Connecting Rod Metal Identification Help
- Zz572 camshaft in a 502?
- Drilling out Arctic Cat helix bolts Help
- Possible to run Driver and Passenger throttles simultaneous?
- 1/2 latham steering system
- stupid intake question
- Dart Big M Block Questions
- Anyone have a mefiburn file for a 502mpi with 741 crane?
- Comp Cams LTS cams
- Running a Blackhawk drive
- Heating the cabin over winter
- Roller Lifters
- 1986 JOHNSON GT 3.6 outboard.
- BAJA 220 Sport, with Johnson 3.6 V8 Outboard Propping.
- Mercury 383 mag stroker cooling system and RPM range
- Hard starting 2017 traverse
- 27' fountain trim cables
- Hydro 5 Blade
- V-Berth Cushion Material Ideas?
- Gimble ring replacement access panel
- Winter Fuel storing questions ?
- Am I Missing Something?
- 34 in center what exhaust??
- 2012 Baja outlaw 26’
- Mercruiser alpha template
- New horn, harness relay & button No beep
- Recommended grease for Suzuki driveshaft splines?
- Flywheel replacement
- Flywheel replacement
- 700 SCI Stainless Marine manifolds
- 8.2 Base Mag ECT (380hp) DTS Throttle Body
- Am i doing it right ? Idle mixtire
- Cam change
- heavy oil spill from front crank seal
- Tunell raaammm!!!!
- Isky vs. 731 Cam?
- Chevy LS or newer LT?
- oil line from filter housing to cooler
- Winterize
- 1989 mercruiser 454 magnum
- Engine oil
- Marinediesel/BUKH VGT450 with MSA 300sxr drive
- Whipple Side Mount for 502 MAG fitment on 496 MAG HO
- Oil filter question
- XD short travel lifter update
- mercury 525efi exhaust
- Exterior engine saltwater protection
- Mercruiser 5.7 EFI Injectors not firing
- Promaxx heads and Valako
- 502 timing
- Throttle Body Advice
- HP 575 sci Intercooler in 29' Fountain.
- Needle and Seat too big?
- 380 carbon fiber tabs
- Blown 555 bbc upgrades
- 454mpi/502 stock .bin file
- B&M 420 refresh
- Carb HP500
- Cost to freshen 496HO ?
- Fel Pro Valve Cover Gaskets
- Pin cleats
- 575sci Wont return to idle
- Yes “ another junk azz msd dist”
- Thermostat Placement/Change
- XR lowers
- port motor won't start until starboard motor runs for awhile
- System fault
- Bmax Outdrive questions
- 588 Blower Motors Cam Choice
- SBF 6-71 Intake
- Self adhesive plastic
- 2005 Mercury Racing 525 efi power steering grinding noise
- Engine Break in mystery
- Volvo 7.4
- 7.4 MPI, MEFI 3 odd timing problem
- 2001 22ZX Scorpion
- Gas Hydro Locked?
- Livorsi Control Issues
- 2300 Whipple gasket
- ProCharger on the new engines with CAT converters?
- Alternative to Holley Screens
- Oil Drain kit, what thread is a 1998 HP500 Carb oil pan??
- Gen VI 500HP
- Corsa exhaust diverter not staying shut - Capt Call/Silent Choice
- Crank-mounted water pump?
- 500HP's Identification
- Innovative DLG-1
- Well, that's disappointing