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  1. Parts Manufacture Identification
  2. 6.2 MX MPI Build
  3. 350 MAG MPI runs, for the most part. Need a little help
  4. Merc horsepower ratings
  5. Need help with excessive oil getting into cylinders on new build
  6. 4.3 mpfi
  7. K-Plane restoration
  8. Will this scan tool work?
  9. HP 500efi What's the Map & Iac Sensor aftermarket part #'s
  10. Gil exhaust part number for TRS wet riser
  11. Stainless marine exhaust pipe plugs
  12. Gil exhaust leak
  13. oil temp question
  14. Marine power 502 pfi. Looking for injectors.
  15. Twin trs Saginaw power steering help
  16. What foam to use for seats? Need a softer ride
  17. What foam to use for seats? Need a softer ride
  18. What is the difference in these two engines?
  19. Cast vs. forged crank differences on a Gen V 454
  20. Tips for removing bravo transom assembly that does not want to come off
  21. 502 Mag MPI fuel leak cool fuel setup
  22. carbon spark plugs
  23. Cam button clearance
  24. Flush Kit
  25. Replacement exhaust manifolds
  26. Gimbal pins
  27. Fuel Gauge Sending Unit
  28. Stellings extension box questions
  29. 496 build thoughts
  30. Evidence of water in 7 and 8 exhaust ports - both engines. Why?
  31. 8.3l Whipple vs. 10-71
  32. Stock oil/steering cooler upgrade
  33. Mercury 700 Redline / RPM Issue
  34. Wideband location in Eickert Headers?
  35. 500efi tps
  36. 350 MAG Carb to 350 MAG MPI
  37. 500efi dropping cylinders!!!!!!
  38. Has anyone adapted a bravo to a OMC 460 ford?
  39. Steering whine when cold
  40. How do I fix trailer?
  41. Herring prop, broke or hit something?
  42. Question on 500HP engine serial number
  43. Thunderbolt iv ignition sensor ground wire connection point.
  44. Two beeps when starting Mercruiser 4.3 v6 TBI
  45. Calling all 496 gurus. alarms after cranking,
  46. 2006 496 Mag HO engine runs sluggish and runs rough when engine is cold
  47. 454L mpi / 454 mag mpi
  48. vortec head fuel map
  49. Closed cooling for engines over1000hp
  50. 454 MPI intake
  51. Turbochargers
  52. Engine hatch won't open
  53. Bravo I W/2 speed prop vs Bravo III
  54. apache
  55. Rod bolt torque after inspection
  56. 502 Mag MPI whipple, procharger or built motor top speed
  57. Trouble shooting 502
  58. merc 500/525/575 valve cover oil cap
  59. Oil Temps for boosted motors over 1000hp
  60. More Torque out of a 496?
  61. Please help with my setup. 16ft superboat with 12” JP w/120 Johnson. Only 40mph?
  62. Mystery oil leak. 502 mag MPI. PICS
  63. Mobil 1 Oil filter number for 496HO
  64. 496 Mag belt skips grooves on idler pulley
  65. B&M 420 Mega Blower
  66. Hull performance
  67. Weiand 177 on 489 - Carb Help
  68. Hull performance
  69. 502 Balancers
  70. Dana Exhaust Temp Sensor Bushing 496
  71. Oil pressure loss
  72. Where to Buy Outboard
  73. 700 SCI Refresh
  74. Swim Step Height (w\ Bravo)
  75. Perfect Seal for Head Gaslets?
  76. Full hydraulic steering recommendation
  77. Engine upgrade advice - 500HP / 525EFI
  78. Mercruiser 525 won't start intermittently
  79. Gil Exhaust Manifold replacements
  80. Washers on starter bolts? Is this OK?
  81. TBI and MPI fuel tables
  82. 500 EFI Transom soot
  83. Holley EFI Timing tables. Can anyone share what they run
  84. 1996 Powerquest 340 hatch actuator
  85. Starter Issues
  86. 1979 Martini cigarette
  87. 500 EFI Fuel Pump Question
  88. Lifting points on 454 mag mpi
  89. Electrical testing gauges
  90. Low voltage on merc 4 strokes
  91. Power steering pump went grenade.
  92. Hydraulic Steering Issues
  93. Fuel Injection/System Maintenance
  94. 2005 cigarette top gun merc525
  95. ethanol vs non-ethanol performance?
  96. Windshield Glazing/Spline/weatherstrip
  97. NXT/#6 dry sump filling
  98. Ignition
  99. Not another Cam Thread....
  100. 525 shutdown issues
  101. 454 MPI advance timing issue
  102. Exhaust Tips
  103. 700SCi defueling/guardian mode problem
  104. 2016 Poker Runs America
  105. AFR heads on Gen VI block
  106. 496 mag IAC valve came apart
  107. 575sci alternator upgrade
  108. Cam
  109. 468 engine build cam option
  110. Replacement Heads for 454 Mag
  111. MPI Fuel Pumps - Carbed
  112. Winter projects
  113. Flange /yoke PTO?
  114. Internal exhaust flaps
  115. Spark Plugs and Gap?
  116. 500 EFI Fuel Pump
  117. 502 With side whipple help
  118. Anyone ever run this cam in a NA 540 plus build
  119. Small 4 stroke sound question
  120. Mercruiser 8.2 mag HO cam specs
  121. Water in oil after rebuild
  122. 496 mag oil leak
  123. Hesitates around 2000-2500 rpm
  124. Drive ratio
  125. GM 454 to 502 Upgrade (Gen 4)
  126. SBC Intake testing
  127. 10 qt hardin oil pan
  128. 525 EFI not starting gramlin
  129. Exhaust tip sound question
  130. Any Experience with HCX mufflers
  131. Corsa exhaust baffles
  132. Electric fuel shut off
  133. 496 HO Overheat - How to check manifolds
  134. Fluctuating water pressure
  135. Fuel Pump Recommendation
  136. 2000 7.4MPI injector pulse time 2x longer than spec'd
  137. 500 EFI Loss of Power and Backfiring
  138. 454 MPI rpm issue
  139. 500EFI Thermostat to Headers plugged
  140. Instatrim boat leveler - Leaking from pump
  141. Had a Rocker Fail
  142. Holley intake efi 502
  143. 500 EFI valve springs
  144. Fuel supply
  145. Mercury 500 efi oil filter housing bracket
  146. new Johnson lifter
  147. what type of prop
  148. Component/camshaft choice
  149. Iso 454 mag injector
  150. Low hour Bravo XR blows after on propshaft dyno
  151. 525EFI with AMSOIL Dominator 15w50
  152. Power trim issue
  153. Idle Map STR fault
  154. Best Inconel Valves
  155. 496 HO - Overheat and High water PSI
  156. Top Engine Rebuilders
  157. Motors
  158. Whippled 509 quits over 1000 rpm
  159. 454 mag mpi issues at wot
  160. ,etal fell in, 502 low oil pressure switch help!!!
  161. Closed cooling question
  162. 540s heads and cams
  163. twin engines
  164. Hard Storage for the engine compartment
  165. fuel pump fuse location???
  166. Water Line Routing for Eickert Headers
  167. Setting idle/air screw
  168. Hp 525 EFI Reluctor info
  169. Confusing engine specs
  170. Loss of power and sputtering
  171. Loss of power and sputtering
  172. Agitator 38 ft scarab restoration
  173. Removing transom assembly
  174. 01 fountain 35’ lightning help!!!
  175. theorys and discussion of dbl fire swap cams, carb spacers dual plane vs dyno results
  176. Procharger issue
  177. Alarm Issues on 2001, 35 Fountain Lightning w/ twin 500's
  178. Volvo Penta 4.3 TBI
  179. Bennett trim tabs
  180. Transom thickness anyone have an idea?
  181. Merctrans II
  182. 5.7 Alpha 1 thunderbolt 4, randomly shut off at cruise
  183. Yes another lifter thread
  184. 2 stroke compression question
  185. Verado Tuning
  186. Sbc engine identification
  187. 2000 502 MAG MPI Surging HELP!!!!
  188. Looking for help. Mechanical drive and tab indicator installation needed
  189. 540 BBC-what spark plugs
  190. 1997 7.4 keeps backfiring
  191. 502 mag mpi rough idle after one dual battery clamp snapped putting hole in it
  192. Sticking exhaust valve - #7 - Gen VI 088
  193. main trim line
  194. 2013 verado 300hp boost control valve fault
  195. Trim Limit and Trim Sender labaling.
  196. Sundancer pump ID
  197. Is the cruiser life for me?
  198. 496HO random issue vapor lock or ???
  199. Base timing 4.3?
  200. Fuel Injectors, replace, clean at home, clean at shop?
  201. Crower solid roller lifter Q
  202. who makes a better inline fuel pump ,for OMC
  203. spark plug gap
  204. 1997 7.4. Turns over won't start
  205. Thermostat crossover
  206. New Gen VI 454 Boat needs intake
  207. Trying to identify ignition system
  208. Merc 496 water drain delete
  209. Aluminum swim platform coating
  210. Donzi 21 Hornet 1986 rigging help
  211. Whipplecharged Mercruiser 502 mpi Operating Temp
  212. Oil pressure gauge seems to read backwards
  213. Blue Mercury plug wires
  214. HP500 alternator over charging
  215. Am I leaving HP on the table??
  216. 1998 502 MEFI 1 Cool Fuel II low fuel pressure
  217. Throttle linkage / geometry
  218. fuel pressure issue, dies at idle, needs re-priming to start
  219. For old school Foutain owners prop size.
  220. New steering head needed when switching to dual cylinders?
  221. SBC dry exhaust
  222. Is it possible NO Schrader Valve on an MPI engine?
  223. BBC Spark plug help. Not MR43t
  224. What RPM should I be at WOT?
  225. Hp500efi rebuild
  226. My 1st boat won’t start - 1996 Maxum 1700sr
  227. Trim cylinders or trim pump testing
  228. 1990 dynasty 190 grand sport
  229. Simple/Weird gauge question....
  230. Any 29 sunsation ccx for sale out there?
  231. Outboard Merc Verado tech in LOTO
  232. Aluminum manifolds and risers for 5.7L 350?
  233. Cliffs High Performance Quadrajet Rebuild
  234. identify this part
  235. Trim Position Sensor
  236. 13 baja
  237. And an engine question.
  238. Merc motor plates... hose routing.
  239. HELP! Outdrivie trimming up on its own
  240. Can I convert 496 ho mercruiser to manual controls?
  241. 500 efi secondary fuel pump requirements
  242. 502 mag mpi no start
  243. Do Perko battery selector switches go bad?
  244. Carb Spacer, idle, cam questions, Sniper
  245. Cool Fuel 3 Reliability
  246. Impco Steering assist
  247. Impco Steering assist
  248. Volvo DPS-A Lower
  249. Twin Bravo Steering Question
  250. Low water pressure