View Full Version : General Q & A




  1. 500efi serial number location help
  2. BEST fuild to run in BORG W
  3. need new motor...compatibility vortec question
  4. Rev limiter?
  5. water pick up
  6. What are the right head bolts for my set up?
  7. polishing lower unit
  8. mpi to carb conversion
  9. epoxy, gel, fiberglass removel from old tabs?
  10. Differences between a 350 mag MPI motor and a GM 350 HO Ram Jet engine
  11. Boat Bottom Hook
  12. BBC Gen 6 manifold gaskets ?
  13. Trim rings.......
  14. boat covers
  15. Lowrance HDS 7
  16. fuel pump problem
  17. AN fitting and routing help...
  18. portable a/c
  19. Need some Help on Sluggish boat Please!!
  20. 6.2 / 377 merc
  21. Battery Help
  22. Moisture
  23. Tuning software??
  24. Gen IV 454 Cam Retainer Plate?
  25. Water Pickups
  26. 525 water temp
  27. 496 oil filter
  28. CMI rope seals dripping water????
  29. Getting really frustrated!
  30. 89 292 Deck Graphics Opinion.
  31. GPS/ chartplotter NEED HELP!
  32. Testing an ECT sensor
  33. Water in Engine oil Please help
  34. Motors are back in!
  35. Livorsi DATA TACH
  36. Four stroke outboard question
  37. Whipple Intercooler water PSI
  38. Oil Change-- Dumb Question???
  39. Clarion CMV1 - Anyone have one?
  40. Weind 177 - Merc 525... 80 W 90 ?
  41. thunder v ignition
  42. Any Mac tool dealers on here?
  43. cold water cold air cold motor
  44. fuel additive
  45. Need a little more POWER!! Help!
  46. 502 re-power options
  47. Compression test results and Gen V 454 Mag / HP425 Differences
  48. suggestions on pwer ugrade wanted
  49. Twin Drive alignment
  50. Gold Digger
  51. valvetrain geometry check - do I need shorter pushrods?
  52. Donzi 38ZX Electrical Questions.....
  53. 2 BOATS, same price, different years, 525sc or 500efi need input
  54. gfs 10
  55. 330 Hp to 400 HP
  56. How to check fluid levels??
  57. New Boat trying to guess HP
  58. Help With Engine Id.
  59. Westerbeke Genset
  60. 350 Mag cutting out at WOT
  61. oil lines
  62. 525 oil change frequency
  63. Amsoil 5-30?
  64. Who makes the best labbed prop???
  65. emi vs stainlessmarine exhaust
  66. thermostat housing change
  67. K-plane pump switch wiring
  68. Whipple vs. Procharger
  69. Buying boat, need to confirm engine hours on "fresh" engine
  70. Stereo
  71. vortec head valve covers
  72. Thanks OSO
  73. Gauge Issues
  74. Which heads are better
  75. Back flow valve for innercooler
  76. 330 hp Stock Exhaust Manifold Swap
  77. merc engine wiring diagram
  78. Lake's near Dayton Ohio for test ride??
  79. Alternator Size?
  80. 454 build horsepower?
  81. fuel pump vacuum
  82. Opinion needed.
  83. Motor Rebuild ?
  84. Is this what I need
  85. 400' X 60 ' pole barn ?s
  86. Port side outdirve & K Plane pump, No Power!
  87. Removing scratches from my windshield
  88. hub kit
  89. Reassembly: 454 Mag Mpi
  90. Carb Spacers
  91. 500hp efi fuel psi
  92. Steering Centerline/ Crank Centerline
  93. Scorpion rocker clatter
  94. Alignment tool fo Imco box
  95. Mounting a Thru hull transducer 88 Baja
  96. Steering wheels
  97. Easy way to identifiy a 351 vs 302?
  98. imco lower
  99. Moisture In Oil
  100. Another one for ya
  101. Opening engine compartment w/ no battery!
  102. steering hub adapter??? Help
  103. got ripped off on some parts and machine work, need advice..
  104. Holley Carb choice ?
  105. gear lube reservoir alarm not working
  106. OSO timing out quickly
  107. 1.8 roller rockers
  108. Non skid
  109. My Header dilema continues
  110. Alpha rear engine mount bolts
  111. transom mounted water pick-ups
  112. Closed Cooling Heating Question
  113. Big Block Oiling Question / by-pass valves
  114. 489 with only 14 hrs compression #s
  115. McLeod Design?
  116. Mechanical speedo
  117. Looking for Bravo One X Decals
  118. Subwoofer box Dynamat lining
  119. Bolt removal - bellhousing to transom
  120. Propane Powered
  121. Someone Please explain this to me...
  122. need help 90 31' scarab excel stringer bad
  123. Any stereo/audio wizards out there...?
  124. boosted tuneups
  125. Muffler removal help, and NEWBIE to site
  126. 2 Warning Beeps on 496ho???
  127. Lenco's vs. K-Planes
  128. Race Pump fuel pumps
  129. Sea Strainers , Brass, Bronze or SS ????
  130. Fuel Flow Meter - HELP
  131. 292 Formula Fastech 400 + HP
  132. paging Fogducker..
  133. gps antenna
  134. Holley help/ twin 750s/5psi boost/roots
  135. Does anyone know where I can get two of these (pic)
  136. Put-In-Bay info
  137. manual fuel pump
  138. Solid Model of a Top Gun
  139. Single or twin fuel usage?
  140. Do Corsa mufflers cause any RPM loss?
  141. Stereo popping with trim adjustment
  142. Saginaw P/S pump GPM Flow rating?
  143. More prop testing and results...need advice
  144. Sea Mounted Fuel Pump Block Off
  145. Holley 800 vs 830 for 489
  146. High fuel pressure.
  147. CD Player remote question
  148. White chalky residue on exhaust manifold/riser
  149. Compression Ratio w/ 4lbs boost at elevation?
  150. Mobil 15W-50
  151. where to buy marine carpet
  152. Good place for rear seat/sunpad within 150m of Austin?
  153. Block casting number
  154. Water to whipple Chargers
  155. Scoop location?
  156. Old Volvo fuel pump
  157. Weird oil leak?
  158. 38 Fountain Port no power
  159. Water pressure sender
  160. PSI Blower Carbs
  161. 496 sea water pump question
  162. fuel in seawater fuel pump housings?
  163. 1999 HP500, MLS without surfacing?
  164. Engine shipping crates?
  165. Break in limiter - Verado 350 sci
  166. Low oil psi 454 500HP
  167. Need help with drive height
  168. Oval exhaust tubing
  169. Tapping/ticking noise
  170. Engine ticking
  171. supercharer compatibility????
  172. warning alarm
  173. help needed: 502BBC engine problem
  174. Mercury Racing Oil Filter Cross Reference
  175. Interior cleaning products??
  176. What oil should I run?
  177. GPS/Depth Finder Combo Question
  178. Teague VS Imco
  179. Correct blower size for Gen VI 540?????????
  180. engine mods to a 502 BBC expected H.P gains?
  181. 1.8 rocker on 500hp
  182. hydraulic steering valve question
  183. 188 or 088 heads
  184. 502/450 hp gm blocks whats the mystery ?
  185. Are these heads to big for my combo, Merlin iron 345 CC runners
  186. Trouble aligning engine (350 sbc)
  187. Transom bearing and starter.
  188. best price for anodes?
  189. Fountain fresh water tank pump
  190. carb for 502
  191. HP500 Buildup questions
  192. 502 mag 450hrs on a boat i may buy
  193. Rub rail screws
  194. Scarab 22 Gas Tank Fitting
  195. First Poker Run
  196. Nordskog
  197. best oil for 525sc?
  198. STEREO Advice
  199. 3rd tank for boat lift location
  200. Hydrualic steering cap
  201. Polished Stainless Steel Bolts For Exhaust Tips
  202. Boat radio circuit amperage
  203. ESC Module availability
  204. lightning headers
  205. Cam and ignition question
  206. prop for a 24x7 hull
  207. Any good mefi tuners around LOTO?
  208. need help
  209. 502 EFI System Problem
  210. I need to replace a window on my boat, where do i begin to look?
  211. Gas questions
  212. Rotella 15W40
  213. How much boost would you run??
  214. Another K-Plane ?
  215. Blower Size on Mercury 900 SC's??
  216. Decent OTC head cam combo
  217. Part number for GEN VI timing cover gasket?
  218. Buying used headers
  219. powdercoated out drives?
  220. Remote Reservoir On Hydraulic Steering
  221. 500HP how can you tell it is a real one vs. a 454 painted blue?
  222. GIL or CMI Headers for 500HP??
  223. Get roller cam or Alum heads?
  224. new radio an amp
  225. Kill Switch
  226. Morel lifter noise
  227. Silicon on bravo transoms or not
  228. Belts for HP 500?
  229. Mallory cross reference
  230. cam card
  231. HP 500 EFI (in 20.5 cougar sport skier)
  232. Anybody with Lincoln Welder Resources?
  233. Switching to captain's choice / call from the corsa quick and quiet 50/50 muff system
  234. 10778C oil pump, which pressure spring?
  235. adding shoot through depth transducer???? where to place it?
  236. K-Plane Pin!!! Stuck!!
  237. #7 cylinder 0 compression
  238. Holley 2 circuit or 3 circuit for marine application
  239. Where to plumb this small fitting on Hardin/Gil 9" Riser?
  240. Mefi-3
  241. are these 454=440 cyclones
  242. exhaust
  243. HP500 carb onn a 489?
  244. head choice
  245. Oil Extractor
  246. Bravo XR, LH or RH failure rate
  247. dry joint exhaust ???
  248. SUPERCHARGED 588CI 1050 or 1150
  249. Merc exhaust elbows - stainless vs iron
  250. Opinion needed on a 496 cam
  251. Should I Be Worried??
  252. Crankcase Breather for Merc 490HO Oil Fill Tube?
  253. Thunderbolt V
  254. Analog Tach reading off
  255. repower a baja
  256. Two Stupid Questions...
  257. Rockford Fosgate Marine Speakers???
  258. Baja V8 swap
  259. HP 600SC. What am I buying?
  260. hp500 cap and rotor
  261. guesses on power?
  262. Engine Hours
  263. Adjusting Idle on a 600SC
  264. hp500 oil and filter change
  265. Bravo 1 to XR shorty
  266. stainless cable 33c k-plane cable covers??
  267. Promax 300's snapping alternators off..
  268. 525 one side hot
  269. Pachanga distributer and coil
  270. Kicker Marine
  271. gen V gen vi block swap
  272. Clicking,tapping noise after shutdown
  273. 94, Merc 454 Mag water pump.
  274. Issues with 496 CMI Sport tubes??
  275. Stereo amps in bilge
  276. powerquest 380 bow lift
  277. Valve covers and roller rockers
  278. Power Steering issue....
  279. Best oil pan gasket??
  280. Wet Sounds equalizer and IR repeater????
  281. how much of a cam with 496 manifolds
  282. New install of sea strainer?
  283. where to buy a simple snap / strap
  284. Help finding a thru Transom Water Dump..
  285. gen IV 454
  286. speed and custom marine
  287. hvh carb spacer?
  288. Annodes
  289. Control Panel Upgrade: Fuse holders or Breakers
  290. Trim tab switch upgrade wiring help
  291. vovlo penta to merc??
  292. hydraulic steering install
  293. mercury trim and tab indicater
  294. Oil Filter Housing Gil Marine Gaskets
  295. Fuel system
  296. 598 CI AFR 385CC CNC BBC Heads!!
  297. 502efi's oil temp senders
  298. Crane Hi-6m Manual
  299. gill hp 500 exhuast
  300. Question for the cam guys
  301. 741 cam specs.
  302. 2V vs 5V stereo amp output leads
  303. Mirage Plus prop fit an Alpha drive??
  304. Silent Choice - is reversion more likely at idle or at cruising speed?
  305. 1/2" fuel tank inlet
  306. Blower Motor Exhaust Manifolds
  307. 496 Fresh Water Pump Assembly
  308. fuel filters/screens on 454 mag mpi's (where)
  309. 500 EFI - vapor lock??
  310. K-Plane Indicator Cable
  311. Oil restrictors or plugs?
  312. Hydrolocked 420
  313. Stock Gen VI valve covers versus HP 500 covers
  314. 496HO Fuel Injectors
  315. Line up Drives.
  316. Will new emissions laws effect custom boat builds?
  317. Strange Engine Noise
  318. Will a Merc outboard prop go on an Alpha?
  319. Need Help pls--Reversion!
  320. 525 Efi Spark Plugs
  321. High water pressure
  322. Trim pump set up . .questions
  323. Chrome Air Intake Scoop ?????
  324. 5.7 sbc exhaust manifold
  325. Fuel Tank Placement
  326. help full tip
  327. What octane fuel for 420's?
  328. 454 mag water hoses? where to get affordably!
  329. 2x18 combo oil cooler
  330. 500 EFI Fuel Pumps - Formula
  331. exhaust manifold block off kit
  332. GPS Speedometer
  333. Ateco 500efi upgrade
  334. Oil Pressure Gauge Pinned
  335. 588 CI BBC 14-71 littlefield/intercooled
  336. Remote oil filter
  337. old transducer - new depth gauge
  338. Jet change needed?
  339. spark plugs
  340. Exhaust tips with internal flappers
  341. just for fun: cheapest way to make 800hp????
  342. Would this work?
  343. Through Hull Exaust trim
  344. gen II to bravo one
  345. reversion questions with a 741 cam
  346. outboard installs
  347. V-bottom vs CAT
  348. GT Performance Engineers Upland Ca...any bad dealings?
  349. Looking for Dana Headers...
  350. Think I need a different prop?
  351. Buying Motor from GT Performance Engineering. Have Tech Q's
  352. Valve Spring Spec for 500 EFI
  353. fuel/water seperator w/drain
  354. nose cone epoxy
  355. what % of h.p lost between crank, and prop.
  356. Hinge pin removal. Drill?? Any tips welcomed
  357. adding a portable get to a fountain
  358. Anybody running Lightnings with Silent Choice or Corsa?
  359. 500EFI Valve Spring help.....
  360. Gasket ?
  361. 30 motion
  362. Mirrored Plexiglass
  363. Mercruiser Parts Webite???
  364. Carpet adhesive
  365. Boat Covers
  366. Boat Covers
  367. approximate horsepower!
  368. HP-500 what RPM max.
  369. Wet Dream II
  370. zero balance BB flywheel
  371. External steering with Hynautic helm
  372. wipple?
  373. Need advice/opinions please on buying this boat.
  374. Boat ladder
  375. Mercury Racing 700's Very Hard to Re-start
  376. Rigging Question
  377. NEED HELP! - Bravo Engine Mounting Question
  378. oil cooler install question!
  379. Bravo Transom Assembly Re-Installation
  380. Gen5 or Gen6 differnece
  381. Engine Coupler Issue?
  382. Water pickups
  383. Need Quick Answer Before buying this boat??
  384. merc smart craft
  385. Which valve springs?
  386. Latham rams on imco extension box arms?
  387. Priming Engine with Oil
  388. extended runner mod for Holley Strip Dominator?
  389. How to tell what gen big block you have?
  390. Bravo Upper Drive trim guide crack repair
  391. South Florida Dyno?
  392. Aluminum on transom?
  393. how much can you drop comp with a head gasket??
  394. Trailer fenders
  395. scarrab HELP
  396. Prop help
  397. Through hull water pick up epoxy
  398. New Motors: 540 carb Natural asp. or 454 blown?
  399. Decisions, decisions... square or oval port for 489?
  400. msd. vs. delco dist
  401. crossover cooling systems
  402. Carburetor recommendation
  403. Full closed cooling system.
  404. Small rocks in oil filler tube???
  405. Wanted BigBlock Chevy Marine Performance by Denni Moore
  406. Cam limit before reversion occurs
  407. Anyone know the factory torque spec for a 500 EFI rod bearing?
  408. What valves are used in the stock HP500 heads? 1999
  409. Trans fluid?
  410. Merc/CMI service bulletin
  411. Cam Choice
  412. 496/525 top end
  413. These gaskets don't look correct
  414. Race Fairing
  415. 500 Efi Drain plug locations
  416. drive yoke
  417. Crack in 454 Alpha, your thoughts please
  418. Exhaust Dyno Charts
  419. Making Power with engine temp?
  420. Exhaust manifold Merc BBC stainless bolts from ARP
  421. OMC to Mercruiser swap question...
  422. computer reprogram 454
  423. mercruiser Denso Harness info needed
  424. Water circulation issues
  425. Refresh on HP500, which gaskets and what oil pump?
  426. camshaft id
  427. HP500 Heads and goofy rocker...???
  428. 500 EFI alignment
  429. 42'sonic trailer
  430. Sony Subwoofer Installation
  431. 454 to 496 Dart p-1s what cam?
  432. bbc 1.7 rocker arms
  433. intakes?
  434. 225 Merc Opti max question
  435. Engine not level?
  436. K Planes on Formula 242
  437. Eickert Tail Extention
  438. 502 MAG compaired to the 454 mag
  439. BBC alternator brackets
  440. No swim ladder, OK to step up on K-planes?
  441. Blue Motors
  442. Mercruiser Stainless Risers
  443. need help with a wiring schematic
  444. dry exhaust questions
  445. rpm airgap
  446. Raw Water Pumps
  447. bb chevy tapered exhaust manifold spacer
  448. Bravo shift cable bellow
  449. SBC with AFR 180cc
  450. Serp. belt conversions really worth it?
  451. Fuel Lines Fittings
  452. Will stock Merc/GM windage tray clear stroker crank?
  453. Polished Stainless
  454. MSD Ignition
  455. Help - looking for water 525sc water pump part
  456. Gimbal Housing?
  457. Braided Line / Fuel Permeation
  458. Jetting my 250 B&M and 1050 Carb...
  459. 502 mpi procharger fuel system questions
  460. Indmar Aluminum exhaust manifolds and risers for 454
  461. Recommended 496 pistons and rods?
  462. SBC Carburetor Upgrade
  463. Help identifying these parts!?
  464. Marine Machine
  465. no spark (msd ign)
  466. bowtie block
  467. Calling Oil Expert
  468. hypereutectic pistons
  469. what thermostat
  470. Pulleys for 454 mags?
  471. Want to put my boat in a slip..... How to keep green buildup off it?
  472. Props on #6 Drives
  473. Best Oil for Merc 700's
  474. whats a good flat tappet cam for a Gen IV 454 MAG?
  475. Raw Water Pump Mercruiser vs. Sierra
  476. Will this prop fit a Bravo 1 drive?
  477. Gas stains on the side of my boat ?
  478. Rebuilding Gen V / VI BBC book finally reissued
  479. bezel
  480. Formula 242 vs 252
  481. AquaCraft V24 Gas Vee conversion
  482. Leak down test, what are good numbers?
  483. Clearancing rockers for valve covers
  484. boarding ladder who makes it
  485. Switching Exhaust Tips
  486. Trim guage
  487. What fuel:oil ratio after removing oil injection?
  488. Pressure testing and repair of headers
  489. Raised x
  490. Gen VI BBC Merc 454 MPI questions
  491. Big M Dart block..is it ok for marine use??
  492. aluminum swim platform
  493. Amsoil SVG Sever Lube Water Tolerance?
  494. Need to know correct head gasket to run Mk IV head on Gen VI 454, please
  495. Best Closed loop kits for 502mpi motors?
  496. I won't know unless I ask...valve springs on 088 vs hp500 head
  497. What fuel pump for 1400 hp
  498. Need advice on what GPS to get
  499. warlock running video.
  500. Mefi Tuning Software