Mechanically they're the same. Use the sensors and other bits from the 05 though, to make sure the 05 computer still talks to it.

 

only thing that is not same is the compressor housing on the turbo...

also what is wrong with the orginal engine if u dont mind...

 

Really? I thought the turbo changed around a bit on the 06-07 models.

 

It depends whether you're talking US Model Years, or the 'real' years. For example: Volvo built the P2 R from 2003-2006, but they were sold in the U.S. as MY's 2004-2007. So, when you have someone from the UK (or really, anywhere but Stateside) say they have an '03 R, that translates to an '04 R for us. So, yes, you're both right. 05 R's (build year; '06 R by U.S. MY) changed the compressor housing on the K24.

-Steve

 

only thing diff on the turbo compressor housing is that 03-mid 05 the k24 had a v band clamp connection at compressor outlet and mid-05 and up cars have regular hoseclamp connection.

 

Ah. I've got one of the earlier ones then. The thing is a bag of dicks to deal with, when removing the piping.

 

Welcome to SS!
Holding onto and parting out the 04'?
Let me be your first official SS best-est buddy! Official friend invite to follow..heh heh

 

And here come the vultures lol

 

You gotta give to get. I am donating my old a/c compressor to science. Seems Cjones is going to attempt a bearing transplant.
So you see, I will pay it forward.....vulture you say?

 

sme engine 03-07

 

Thanks, I assume the same is true of the V70R? So up to 07 you could swap V and R engines from one another with impunity?

Even some of the Xc90 2.5T motors and 05+ S60T5 motors IIRC

I know all the 5 cylinder XC90's from 03 to 06, all the S60 2.5T's, all the S80 2.5T's, as well as some of the Cross Country's share the same engine and it would physically fit but thats a very different engine from the R I think.

Its amazing how many different platforms Volvo used the same engine on. Still think its underpowered for the XC90.

 

Blocks are the same (2.5L). Other stuff is different amongst the models (Turbo choice, tune, CVVT cams, etc).

-Steve

 

Same sized block, different crank, rods, pistons (compression ratio), head, spark plugs, etc on the non-R 2.5T's. The 05+ P2 T5's were basically 2.4L versions of the "R" motors (shared crank, rods, different pistons obviously - not sure about the head come to think of it...).

 

I do know that the list price on a new 5254t4 (R) engine is almost $11k instead of $7500 for the reg 2..5t, so there must be some internall differences to make it that much more exensive. We may be pulling this engine apart so i'll interested to know what is different.

 

Time to update a very old thread.

We pulled the engine apart, did a head job, and right when we were ready to put it back together realized the cylinder walls had some scoring. Enough so that we really didnt want to put that block back in. Other priorities came up and we just didnt have time to finish the project.

Past couple weeks we finaly got back on it and striped the old block down so we could take a better look at it. We compared everything we could between the R block and a 2.5T block off of a parts car and were not able to find any difference. The pistons are not the same but the crank shaft is (same part number). Got all the engine bearings ordered and put the crank bearings in the block without the crank and tightened it down. We wanted to be sure it was right so we took it to a machinist and had him mic the crank as well as the bearing and make sure everything looked good. Turned the crank while he had it as well. He gave us the all clear so we very carefully put it back together.

Finally got it cranked up Thursday and it runs great. Thanks to everyone who replied to this thread, its what got us thinking that maybe we could use a 2.5T block.
Its now for sale, pictures here.
http://volvobylnb.com/forsale,05s60r.html

 

that titanium grey with nordkap interior, just fyi. nice car. low miles, is that on the engine or the chassis?

 

The chassis and everything but the block itself is 26k. The head is original to the car.