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  1. Scott Danforth

    What´s the best replacement for AQ271C (or 570) 5.7 GM engine, ideally stroker?

    carb or EFI, the base engine is the base engine and not a byproduct of the induction system. its the foundation. EFI has different requirements for cams than carb. and you still have to worry about rocker arm ratios, lift, lobe separation, etc. yes, you can drop in any GM motor with a 153...
  2. Scott Danforth

    Transporting a 20' boat on a flatbed.

    buy trailer. put boat on trailer. put boat and trailer on flat bed or build cradle and secure it to flatbed, use travelift to load boat onto cradle that is secured to flatbed, use travelift to unload flatbed. I wouldnt just put a boat on a flatbed unless its a junk boat.
  3. Scott Danforth

    Replacing Gas engine with electric motor

    The new all electric boats have a range of about 30 to 40 miles an need a recharge
  4. Scott Danforth

    Engine Flush

    Super Flush SF400
  5. Scott Danforth

    Oil pump

    how to make a pump primer take a piece of 3/8" diameter rod, grab a grinder and make a tang on the end. then tack weld a washer and a piece of 1/2" EMT conduit. chuck it up in your 1/2" drill and spin it. I make my priming tools out of what is handy. the last one was a bad 4.3 distributor...
  6. Scott Danforth

    Log splitter. Bushings versus bearings

    What Matt said.....verbatum
  7. Scott Danforth

    New Boat , Jackplate , Warranty

    ask your dealer
  8. Scott Danforth

    4.3 volvo penta flywheel problems

    you swapped rotating assemblies from one block to another? pistons cant just be pulled from one bore and shoved in another unless they are virgin bore new motors at a minimum, you need to bore and hone the block and get new pistons and rings.
  9. Scott Danforth

    Bad starter?

    but did you clean the connections, including the starter mounting pad to the block?
  10. Scott Danforth

    Wiring diagram for 5.7 GSi PEFS? Or AQ271C? Ideally both?

    carb engines are simple and with little maintenance effort will last many many many decades injected engines are great for a few years, then with a moderate amount of effort can last a few decades it all depends if you understand the Otto cycle and the inner working of the internal combustion...
  11. Scott Danforth

    Next project. Free boat.

    You know that free boats cost most to restore. Good luck
  12. Scott Danforth

    Bad starter?

    And clean all connections from the battery to the block to the starter
  13. Scott Danforth

    4.3 volvo penta flywheel problems

    What year VP motor? what year truck motor? Did you mix parts from a balance shaft motor and a non balance shaft motor?
  14. Scott Danforth

    Oil pressure sending unit upgrade

    Is there something wrong with the sender, if not, spend your money on things that need replacing
  15. Scott Danforth

    Sole

    decks on many boats are balsa. however 60 years ago, they could have used cork.
  16. Scott Danforth

    How to Switch to Antifreeze Cooled Engine

    4150 is also a square bore. VP used many 4150 carbs and a few 4175 and even a 4160 over the years. My 1988 Volvo Penta 271C ( 275hp ) had a 715 CFM 4150 vac secondary on it from the factory and I used the same carb when I went to a hotter cam and vortec heads. the same carb was on the 310A...
  17. Scott Danforth

    outdrive gear case flushing?

    Why would you need to flush the drive unless you have contamination. Then the drive must come apart
  18. Scott Danforth

    How to Switch to Antifreeze Cooled Engine

    I recommend 650 cfm
  19. Scott Danforth

    Push rod cover gasket replacement and distributor

    Most likely front timing cover has a rust hole
  20. Scott Danforth

    How to Switch to Antifreeze Cooled Engine

    Why do you think you need EFI? There is no additional power or economy
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