Thoughts on New VP V8 350.

whitesharkseeker

Petty Officer 3rd Class
Joined
Nov 8, 2010
Messages
95
Going to re-power. VP 5.7Gi has 4,100 hours. Stuff starting to go bad and tired of constant, costly repairs. Does anybody have input on the new VP V8? I'm hesitant with the aluminum block in salt water. How's that engine performing? I have a 22' Davis boat (Radon). Thank you.

-Eric Mailander
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,260
I'm hesitant with the aluminum block in salt water.

Ayuh,..... It comes as closed coolin' only don't it,..??..??
 

alldodge

Moderator
Staff member
Joined
Mar 8, 2009
Messages
43,072
With closed cooling I wouldn't worry a lot about salt water, other then if exterior paint comes off
 

muc

"Retired" Association of Marine Technicians...
Joined
Jul 7, 2004
Messages
2,215
You will be surprised at the increase in mid-range power. And save a few gallons at the pump.
This upgrade could open up some nice extra options depending on how you use your boat.
Make sure you deal with someone who is knowledgeable about this repower because there are somethings that must be ordered with the engine. Way to expensive or impossible to do after the engine has been ordered.
Seeing very few breakdowns with this new generation Volvo.
I'm in Minnesota, so have no idea about saltwater. All new Volvo's have freshwater cooling for the engine block. But I don't think any of them have freshwater cooled exhaust manifolds. Something to check on.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
50,969
nope, VP doesnt fresh water cool the exhaust
 

whitesharkseeker

Petty Officer 3rd Class
Joined
Nov 8, 2010
Messages
95
Awesome, thanks for the comments. Problem with Volvo Penta, too expensive to repair and parts/special tools will make-up for any fuel savings with new engine. I'm now looking at Mercruiser but appreciate the thoughts.

Cheers, Eric
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
50,969
Awesome, thanks for the comments. Problem with Volvo Penta, too expensive to repair and parts/special tools will make-up for any fuel savings with new engine. I'm now looking at Mercruiser but appreciate the thoughts.

Cheers, Eric

are you sure about that. for the past few years, the volvo parts have been significantly cheaper than anything from Mercruiser for the equivalent part. and they all require special tools.

plus, unless you are changing the drive, you cant use mercruiser anyway in a volvo installation.
 

muc

"Retired" Association of Marine Technicians...
Joined
Jul 7, 2004
Messages
2,215
nope, VP doesnt fresh water cool the exhaust

Ya, didn't think so. But I keep hoping they will start. They did with the 6.0L a few years ago. But —- as near as I can tell —- neither Merc or Volvo offer closed cooling on their catalyst manifolds.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
50,969
Ya, didn't think so. But I keep hoping they will start. They did with the 6.0L a few years ago. But —- as near as I can tell —- neither Merc or Volvo offer closed cooling on their catalyst manifolds.

I talked to the former Chief Engineer at VP a while back (he moved over to the big trucks). he stated the customer base didnt like the extra expense, as the HX literally needs to be 2X the size for a full system.

need the buying folk to understand the extra expense of a full system vs a half system and the total cost of ownership.
 

muc

"Retired" Association of Marine Technicians...
Joined
Jul 7, 2004
Messages
2,215
are you sure about that. for the past few years, the volvo parts have been significantly cheaper than anything from Mercruiser for the equivalent part. and they all require special tools.

plus, unless you are changing the drive, you cant use mercruiser anyway in a volvo installation.

I agree with the parts prices. Especially with parts that are exactly the same (like gimbal bearings) in both products. Volvo is almost always cheaper. Unless you’re looking to buy cheap knockoff parts and tools, then MerCruiser is cheaper in most markets.

Not sure about the aluminum block engines. But I do know that with the cast iron blocks, you could swap both directions. Volvo even included shift interrupt programming (something that was never used with a Volvo drive) in their ECM. They both wanted to make sure that they didn’t miss out a repower sale.

They both make make a good product. Both have strengths and weaknesses. The most important part of this decision is where you live and boat. Repowering is like buying a new boat —- the quality of the dealer is more important than what brand you buy.

Having worked many years for dealers that sold and serviced both. I think Volvo is slightly better.
 

muc

"Retired" Association of Marine Technicians...
Joined
Jul 7, 2004
Messages
2,215
Scott Danforth;n10882597 need the buying folk to understand the extra expense of a full system vs a half system and the total cost of ownership.[/QUOTE said:
So very true, especially in saltwater.

But i understand the lure of cheap. I’ve fallen for it and regretted it too many times. And I’m someone who has seen the results countless times with customers. Makes it hard to fault other people when they fall for it.
 
Top