View Full Version : General Q & A




  1. Good cam upgrade on my 502
  2. gaffrig gauges
  3. Classic 18 or U-19, which should I buy?
  4. my winter project dyno sheet
  5. dock / mooring lines
  6. McLeod Bolster Switches - Where to buy?
  7. Cam size with stock rockers
  8. Rebuilding 1982 Wellcraft nova II
  9. need mufflers
  10. Pro Charger cog belts
  11. Who to have re-powdercoat a swim platform??
  12. Stereo headunits, preout turn off/on option
  13. steering issues
  14. Warlock exhaust finished!
  15. A/N Fitting
  16. What octane for stock 7.4 MPI
  17. Sea water pump conversion
  18. Oil coolers
  19. Oil Filter Questions
  20. Pretech 33c control cables
  21. Solid Motor Mount Setup?
  22. Need help with throttle cable linkage on new carb
  23. unknown source of shake
  24. exhaust temperature in water jacketed headers
  25. Best 500 efi air cleaner?
  26. Bravo Bellows
  27. Buying a 22' boat, Survey? Leak down? What should be done?
  28. Ext hydraulic steering on 38 fever
  29. What fuel pump to use
  30. B&M 250 thermostat housing
  31. Sea Water Pump KIT
  32. Installing GPS/Depth Finder
  33. Cabin fans and lights?
  34. E-Top Plumbing
  35. Help??
  36. XR Drive Stickers
  37. Bearing clearance spec question...
  38. Explain This
  39. Leather Dresses
  40. Stock spring replacement for 502MPI
  41. Where is the 90amp fuse on Mercruiser
  42. Best prop for a Bravo 1 drive.
  43. Where to install water pressure sender
  44. Where to install EP-60R Fuel Senders?
  45. Merc Y-Pipes old vs new style
  46. Which of these two gauges would you install if room is limited?
  47. Pressure Test Headers
  48. steering
  49. need some help
  50. Exhaust for Whippled 540
  51. Lighted Bev Holders ?
  52. Removing Apoxied Hatch Latches
  53. weiand 177 for bbc question
  54. 200 rpm
  55. Advice Needed - Converting 3 to 2 motors
  56. Deck height
  57. switchable exhaust upgrade?
  58. What drive is this?
  59. your thoughts on these heads!
  60. Oil filter housings
  61. Sea Water Pumps
  62. 454/502 MPI MAG injector orings
  63. cam help
  64. Flagship 572 Marine details & prices?
  65. Seals for dry throught transom exhaust
  66. Older 5.7 HI-Perf EFI Horsepower
  67. switchable exaust
  68. 32 dominator port engine
  69. 350 upgrade question
  70. Cylinder bore job
  71. Cryo-Treatment
  72. Cmi Sport Tubes Or Gen X
  73. engine rotation 502mag single motor???
  74. Another Blower motor combo question
  75. 500 EFI lifters?
  76. Drive shower recommendations
  77. tall deck 454
  78. Procharged 540 Build And Fuel.
  79. spark plug Q
  80. Silent Choice Solenoids? swap them???
  81. baffels
  82. 600HP LS Marine Engine
  83. 454/502 MPI MAG crossover?
  84. TRS Engine Harness bracket and wireing
  85. Carb Jetting - 350 magnums
  86. K Plane trim switch - any ideas where I can source one?
  87. K-Plane lines
  88. Possible Upgrades for a 7.4 Merc
  89. new stainless marine tips installed
  90. Mark IV oil relief
  91. hydraulic steering helm-char lynn #?
  92. Good offshore magazine
  93. Steel or aluminum
  94. My Winter Project Is Done
  95. What is this??
  96. 2000 thunderbolt timing module wiring???
  97. Gen VI oil filter relief valves
  98. Helm ???
  99. graffig gauge
  100. A/F ratio and 10% Ethanol
  101. merc.,it's free again program
  102. Outdrive wont stay up
  103. shore power
  104. Gorilla Hose by Goodyear
  105. bolts
  106. Cleaning Carbon deposits from Valves?
  107. Huber fluid levl?
  108. actuator covers...
  109. Who's running stainless marine manifolds w/standard risers
  110. 454 Mag
  111. Sea pump assembly lube?
  112. Stellings VS CMI
  113. Thank You Mercury Racing
  114. Removing oil cooler lines from cooler
  115. 525 headers
  116. Compression of 525 EFI's
  117. A/F ratio
  118. Camshaft Dimension (length)
  119. Balance and blueprint worth it?
  120. blocking off water pickup for speed gain
  121. 454 questions
  122. 502 MPI upgrade
  123. Should I Get my 502 Supercharged?
  124. Should I Get y 502 Supercharged?
  125. alternator upgrade 55 AMP vs ?
  126. Epirb
  127. new shifter came today and got a little more done on my upgrades
  128. Closed Cooling
  129. Decal Partnumbers Bravo Drive
  130. HP 500 cam upgrade
  131. Mercruiser 600 SCI Headers
  132. transom water pick up
  133. 500 HP Lifters
  134. Flat Panel TV mount
  135. 502 carb needed
  136. 502 mag mpi
  137. Progress report
  138. 502 EFI/MPI Injector Q
  139. Water in oil...
  140. 502efi upgrades
  141. New engine rod knock...........
  142. Throttle body gasket change?
  143. Source for HP500 EFI rings?
  144. 502 mag wont idle
  145. Dyno report question regarding Fuel-A
  146. Is it possible to shorten SS risers for switchable exhaust?
  147. 496HO swap to 525EFI
  148. hp6 filters??????
  149. Velvet drive reversal?
  150. Bringing Back a Gel Coat Finish
  151. Winterization 496 Mag HO
  152. 502 casting
  153. Bell housing drive coupler???
  154. HP 500 carb circ pump?
  155. 496 mag ho water pressure
  156. Plunbing procharger intercooler
  157. looking for suggestions
  158. HELP! Dead Battery, Can't Open Engine Hatch
  159. Props for Sunsation32
  160. Props for Sunsation32
  161. hydro hoist users
  162. Flame arrestor mesh
  163. Helm steering for #6 drives
  164. Hull bottom
  165. 496 sea pump impeller
  166. Quick question on exhaust
  167. Deck/Building software
  168. Supercharging a 496...
  169. vero Beach, Fla??
  170. 781 or merlin heads wanted
  171. 454
  172. 1986 stinger 312
  173. Any ideas on props?
  174. NEED some exhaust Help Pls (496Mag)
  175. Prop size vs pitch question
  176. SS fittings
  177. Another Oil related article
  178. building a sbc motor
  179. Bell housing measurement
  180. Good blower test results here
  181. help finding Mercruiser HP parts
  182. 525 Efi Harness
  183. cross overs /thermostats why?
  184. sea pump
  185. MSD on 502 Mag MPI
  186. 502mag cam change or hp upgrade questions
  187. 502mag cam change or hp upgrade questions
  188. holley carb guru
  189. B1 coupler?
  190. K-Plane Installation
  191. whats so bad about leaving yor boat in full throttle when u go over a big wave
  192. What is this frankenstein engine???
  193. covering wire holes
  194. cracked head??
  195. Power valve and jets
  196. External power steering cylinder failsafe
  197. 454 Mags Need help
  198. 502 MPI Cams
  199. Quick drain air fitting question
  200. Rusty water when I drained the cooling system
  201. puke tank.
  202. help choosing crossover
  203. EMI Exhaust conversion to dry
  204. Selecting a power inverter.
  205. PCM 555 Service manual and the 525efi
  206. 454 vs 7.4
  207. What is this?
  208. Borla Mufflers
  209. Will Merc 10-qt oil pan work with offshore mounts?
  210. Need opinions on mild 489 build
  211. 93-97 99-02 454mag where is 98?
  212. Whipple 454mpi mag
  213. 496 HO forged internals?
  214. Scorpion 377 flame arrestor questions
  215. Cutting your skegs off???? MPH gain vs handling loss????
  216. 3 Bladed Speedmaster Propellers
  217. motor is almost back together finally!
  218. 454 Magnum questions...
  219. Dyno- Ethanol Fuel vs. Non-Ethanol Fuel
  220. zz502 vs. merc 502mag
  221. Exhaust condensation. How much is normal?
  222. Manifolds EMI or GIL
  223. 454 procharger compression ratio
  224. E85??
  225. fuel inj. cleaning and service
  226. HIN Scandia or Venture
  227. AN fuel lines (thread seal or not)
  228. I'm stumped?
  229. HP 500 efi valve springs
  230. 454 heads
  231. audio warning buzzer
  232. Update On Oil Lubrication
  233. intake manafold
  234. RHRs PITSTOP CORNER FILLING STATION ...
  235. lowering compression on 502?
  236. AN Sealing on pipe thread adapters
  237. Carb Engine Guru's
  238. REED cam??
  239. Bravo Drives
  240. Mercury Racing flame arrestor
  241. Oil Drain plug size on 99 HP500 Carb
  242. 8.1 HO repower help
  243. Forward ballast tank........
  244. aftermarket drive oil monitor
  245. help this prop
  246. mercruiser thunderbolt distributor
  247. Stepped hull alum tank install.
  248. Eddie marine Kplane help
  249. All of a sudden 3/4 throttle and hitting rev limiter.
  250. Merc impeller part number
  251. Hooking up a bow tank
  252. z010 camshaft...what is it??????
  253. 454 mpi 385 horse how much horsepower can one make
  254. Dry Exhausts with mufflers
  255. Looking for 871 setup
  256. Gil VS HP
  257. need help on a helm/orbital valve i.d.
  258. Building some 502's
  259. sea pump ?
  260. Yellowed seats
  261. cleaning out the shed whats left
  262. baffels
  263. Dart eagle irons on 502 build questions.
  264. Engine alarm wiring, and rewiring. Help.
  265. Ziegler Helm Posts
  266. Gas tank question?
  267. Crane Golg Roller rockers...2 sets...really different
  268. Mercruiser 454 Magnum Cylinder Heads
  269. ARP rod bolt ?
  270. Battery Chargers
  271. Diesel Engines
  272. Edelbrock carb
  273. best place to buy longblocks?
  274. Battery Switch 101
  275. poss. reversion and exhaust heat problem...please help!
  276. sea strainer plumbing
  277. Mefi-4b Ecu why so hard to find?
  278. Speedometer diameter
  279. Comp Roller Cam identification help....
  280. Sea Water Pump
  281. Sea Water Pump
  282. 2000 - 454 / 7.4 Mpi
  283. Steering Cable Baja OL24
  284. Max Speed 29 Scarab
  285. B&M 250 blower
  286. Gauges
  287. 10:1 compression
  288. 96' 454 Mag
  289. Merc 540 575hp build. heads, cam, ect..
  290. Help, exhaust manifold hits valve covers?
  291. ok I want to build a gm big block
  292. SBC Oil Pan?
  293. zero effort throttles and shifters
  294. holley carb spacer
  295. Engine Oil
  296. Transmissions
  297. 525'a RPM at idle?
  298. Who has the best price on Imco steering??
  299. Cant find info on my boat. 87 Nova spyder
  300. oil cooler lines
  301. Need Part Numbers...
  302. gen 5
  303. Trim rams
  304. k-plane cylinder rebuild kits???
  305. Steering helm going out...replace or go hydraulic?
  306. 502 MPI vs 502 EFI
  307. trim on throttle question
  308. internal flappers
  309. Log Stlye Manifolds - 3 Inch
  310. belt size for 525SC
  311. 572 hp/tq
  312. Whats the reason for a remote oil filter???
  313. 604 CI Build sheet
  314. 700HP Blower vs. NA
  315. Which heads will work?
  316. 500EFI Cam Specs
  317. Dyno-Flo 572 shortblock
  318. blower carb on a blowershop 250
  319. qustion on latham/hydro steering wingplate
  320. Which risers ?
  321. Rex Marine Drive Showers...Any Good?
  322. Engine mounts???
  323. Considering K Planes on 255 Formula Liberator
  324. Broken whipple
  325. batterys
  326. donzi zr
  327. water dumps
  328. sea strainer question
  329. 525
  330. Baffled Fuel Tank
  331. BBC head question
  332. Sell or part out 1,100 HP Motors
  333. Oil thermostat, sandwich type?
  334. 454 Manifold sprung a leak
  335. trim switch
  336. 950hp Drive Suggestions??
  337. Drive suggestions!
  338. Mercury Carbon Fiber Reeds
  339. Building a 604CI Motor
  340. Newbie intro and question
  341. blower rebuild
  342. Crossovers ?
  343. Procharger Install/Owners manual
  344. Trim tab and outdrive fluid change
  345. the best flame arrestor
  346. Dart 8.1 Gen 7 Iron Heads
  347. Hard Coat Anodizing
  348. Mercruiser 165 Water Flow
  349. Has anyone ever tried solar panels to keep batteries topped off?
  350. The Mercathode Question...
  351. Brodix heads 3XX
  352. Freeze plugs
  353. Transmission support
  354. 454 winter upgrades-update
  355. fuel line size
  356. 1 battery, 2 motors
  357. Tach questions
  358. Dart Big M Block
  359. Best Blow Thru Carb Who
  360. Cmi headers
  361. Pro charger M3 on hp 500 EFI?
  362. single 454 to twin 454
  363. Blower carbs, single or dual and where from?
  364. OSO CMI Header Education
  365. IMCO Power Flow or CMI Sport Tube
  366. Which exhaust system?
  367. Wtb: Hyd steering for trs
  368. need a part number ....any help??
  369. Injectors
  370. Which props 21's or 23's
  371. 454 Gen VI, (L-29) EFI Build
  372. Classifieds Question
  373. Cheap 496 mag upgrades (375hp)
  374. Volvo DPX A lower unit
  375. need opinion on gauges-carbon or platnum?
  376. Drive Pumps on Trim Tabs
  377. BBC crossover - w or w/o T-stat???
  378. B-Max lower Bravo Upper?
  379. shaft rockers
  380. Best heads for Gen VI 540's???
  381. K-Plane Bushing Question
  382. Midnight Express
  383. 550 stroker gen question
  384. injector cleaning
  385. Single carb sideways mounting
  386. 540 piston rings, gapless or standard ?????
  387. 47ft fountain parts needed
  388. 468/496 stroker or 8.1 vortec
  389. Replacement injectors for 861260T (502MPI Whipple)
  390. Mcleod electric Bolsters
  391. Continuous Solenoid
  392. B&M Blower service and Holley carb refinish
  393. 330hp 454 Exhaust Barr/GLM vs Mercruiser
  394. Imco -2" Lower
  395. Water in fuel?
  396. Is it worth it?
  397. Holley TBI kit, vers pro charger?
  398. where to order OEM crank and rod bearings, '90 454 MAG?
  399. Motorhome Covers
  400. 525 efi intake O rings
  401. Replacment rings 502 JE pistons?
  402. B/W Velvet Drive trans leak from breather
  403. K-Plane Pump(s)
  404. Rods
  405. Patriot performance heads ?
  406. On for the cab gurus
  407. Shorty Sportmaster lowers
  408. 454 mag mpi rebuilds or pro chargers?
  409. Drive trim not equal??
  410. Red transom lights:
  411. GPS speedo stuck
  412. thinking of buying a merc 420/425
  413. Sand Treatment
  414. anybody have gasket part #'s for bottom end?
  415. LED light strips: any actually made in the USA?
  416. maching vortec heads
  417. Tuning help pls
  418. single ram to dual ram steering
  419. Pro Comp heads & Dana exhaust ?
  420. Northstar M84.....
  421. merry Xmass
  422. merry xmas to all
  423. Latham Filter
  424. Stock or Upgrades?
  425. stock audio equipment Formula Fasttech 382
  426. Carb help pls
  427. Lower Unit heights
  428. fitting to run trim indicator cable thru tab plate??
  429. best price on stainless marine manifolds
  430. Crane Hydraulic Roller #169651
  431. 454 rebuild - ugrade help
  432. 29 fountian whats it worth
  433. #6 Drive Cable indication
  434. meth injection
  435. intake torque spec, and procedure
  436. Bravo to SSM IV converions trim issues
  437. How to seal through transom exhaust?
  438. 454 gen 5?
  439. Throttle Position Sensor Adjustment ?
  440. Ignition key alarm
  441. repairing imco hyd. steering hoses?
  442. how do i identify a HP500 cam?
  443. Merc aftermarket wiring harness
  444. Procharger Oil Plumbing
  445. Ignition Wiring
  446. Cylinder head upgrade
  447. throttles
  448. Cleaning Mercury Oil Cooler
  449. Engine driven air conditioning
  450. 502 MAG Cam Upgrades?
  451. Cylinder bore honing.
  452. bbc heads question
  453. AN hose sizes for cooling.
  454. Chris Craft to Formula
  455. 1st winter casuality? pickup leaking
  456. 502 with M1sc
  457. need to know
  458. What do you guys put in the gas tank to keep the fuel from gunking up?
  459. Gen V dipstick
  460. Performance Distributors
  461. Latham Drive Shower
  462. 502 mag mpi questions
  463. HP 500 Clone What water temp?
  464. cigarette topgun drive hight
  465. Sea strainers with blower motors
  466. 454 engine modifications
  467. #6 wet sump LH lower gears
  468. Please, I Need Help 454 Mag Identification
  469. Need and Engine Expert
  470. anyone make a mpi for use with a whipple charger
  471. Need Props cleaned
  472. Pros & Cons bunk slides or carpet .....
  473. what rpms should i run??? 540ci NA.....
  474. Smartcraft MercMonitor Questions
  475. Oil Cooler Lines?
  476. Hp500 clone with 3-4lbs non intercooled boost , want to keep it under 600hp?
  477. 502 EFI setup whats it worth ?
  478. CMI Repairs by Ken K?
  479. noobster
  480. Trim Tab Help
  481. Bottom Paint Removal
  482. "Tractor" style headers -
  483. Battery chargers
  484. Harmonic Balancers
  485. What fuel pump for a GenV
  486. 26 sonic vs 25 active thunder
  487. How much is my Whipple 496 ho worth??
  488. BOAT wont start
  489. hp500 gen 5 or gen 6 block
  490. Kenwood & Alpine Marine Audio
  491. revolution performance marine
  492. New Intercoolers for big power
  493. Exhaust
  494. tall deck vs. short deck exhaust holes in transom
  495. 525 EFI Valve Springs
  496. XR Damage
  497. Can you ID this exhaust and offer your opinion??
  498. Labor Cost on Changing Valve Springs
  499. MSD Box ?'s Anyone running a Digital-6???
  500. What is you RPM at WOT on a SBC?