Volvo Penta Cylinder Heads

[skydrol]

Does anyone know of a trusted source for remanufactured Volvo cylinder heads. I have a 2002 5.0 GXI-B engine. Today I decided to track down an annoying exhaust leak and found some corrosion in the riser exhaust port and the valve appears to have some corrosion on it. A quick look with a borescope through the spark plug hole didn't reveal anything of concern inside the cylinder but it looks as if part of the valve guide has been eaten away.

Also is this year intake known as a Vortec style head? I'm trying to weigh out my options on what different years I may be able to use as suitable replacements.

Thanks in advance for any recommendations.

 

[Bluestream]

Re: Volvo Penta Cylinder Heads

Why not take your heads to a machine shop and have them repaired?

 

[Bifflefan]

Re: Volvo Penta Cylinder Heads

I agree with the above post, pull the head off and have a new guide installed. Probably be less than a 100.00 dollars.

 

[redjmp]

Re: Volvo Penta Cylinder Heads

http://cgi.ebay.com/ebaymotors/GM-C...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

The 059 castings have the hardened exhaust seat more suitable for stock marine applications.

The 520 just has normal exhaust seat but flows better for more hp applications.

 

[skydrol]

Re: Volvo Penta Cylinder Heads

I agree with having a local machine shop do the work, but I guess my concern is the integrity of the guide boss as it appears to be missing some material probably from water seeping in over time. This engine is operated in salt water.

Anybody have some first hand knowledge of this type of repair?

 

[GLENN M]

Re: Volvo Penta Cylinder Heads

all unleaded fuel heads have hardened exhaust seats, chev guides are integral so repairing is only as good as machine shop.personally i would throw them away,go to chev and get direct replacement.

 

[Bifflefan]

Re: Volvo Penta Cylinder Heads

my concern is the integrity of the guide boss as it appears to be missing some material

Doesnt matter, when they repair it they drill out the old guide and install a new one.

 

[Bifflefan]

Re: Volvo Penta Cylinder Heads

all unleaded fuel heads have hardened exhaust seats, chev guides are integral so repairing is only as good as machine shop.personally i would throw them away,go to chev and get direct replacement.

Clearly you have never built an engine.

 

[Bondo]

Re: Volvo Penta Cylinder Heads

Does anyone know of a trusted source for remanufactured Volvo cylinder heads.

Ayuh,... They just standard Chevy 305 heads.... Nothin' Volvo about 'em...

 

[TilliamWe]

Re: Volvo Penta Cylinder Heads

My local machine shop reconned my one 5.7 head for $160. The other was cracked and they sold me a reconned head for $179 + tax. This was in 2005.
As Bond-o says, they are just run of the mill Chevy Vortec heads, nothing Volvo about them. (Nor Mercruiser or Crusader, or Indmar...)