MQ Radiator sizes

[Heathx4]

Revisiting this topic because I think the previous information on here was not quite right. Please confirm or disprove the following:

The MQ had 3 different radiators, based on the engine. All fit on the same mounts.

L28 - 640x450x48mm, filler on driver side, outlet high on passenger side, low on driver side, outlet diameter 35mm

SD33 - 640x450x48mm, filler on passenger side, outlet high on driver side, low on passenger side, outlet diameter 45mm

P40 - 640x450x48mm, filler on driver side, outlet high on passenger side, low on driver side, outlet diameter 44mm

In other words, the P40 and L28 radiators are the same, except the P40 shares the SD33's pipe size. The SD33's is the reverse layout of the other two.

I brought this up because my V8 donor car had the overflow bottle on the passenger side (originally a 24V SD33) but the radiator was the same layout as my L28 with bigger pipes (there was a funny tube to run from the filler across the engine bay to the overflow bottle. The donor radiator fit in my L28 engine bay, and it was a beauty - clean, all fins intact, cooled well. Unfortunately it was stolen so I put my L28 radiator back in. It was perfect for the L28, but not up to the task of the Chev, so now I'm searching for another radiator. To save other's the trouble here's what I found in Newcastle:

Repco: $400 talked down to $375 for the L28 radiator (that's after I explained to him why he couldn't see the 350 Chev listed for the MQ Patrol ).
SupercheapAuto: no radiators.
NatRad: $720 for a re-core. Can't find any new ones.
ISP: Nope.
All Fourx4 Spares: Excellent SD33 one for $250.
Ebay: $305 for P40 + $35 postage from Adelaide.

Ebay is also where I got the sizing information from too. From what I can tell, the one that was stolen was the P40 radiator, which is the best one I can get to replace it. How's that sound?

[Brendan-s]

Can't comment on the measurements right now, but you described my (24V, SD33) radiator perfectly. If you want, I'll measure it up for you when I get home.

[MKPatrolGuy]

Yep, you want a P40 Radiator. I got a brand new one from Cool Core Radiators for about $420.

[demo2]

If u dont mind putting a small hump in ya bonnet an F100 rad fits nicely and cools it a treat as its designed to cool a 351 clevo.
I have a recored one sat in my shed as it appens.

[Screwy]

an L28 radiator will cool it fine if you run a full cowl or run twin au thermofans.

are you running a correct setup?

my chev runs l28 radiator and is fine

and my 5 litre runs an SD33 radiator and is fine also....

screwy

[jcclures]

I think you are right about the three radiators in the size and layout, as I have all three here, but I would look at the spacing of the tubes in the core. In the radiators I have the L28 and P40 have 12mm spacing giving 36 rows but the SD33 has 10mm spacing giving it 48 rows, which should be more efficient I think, maybe you can get this core for all of them but I do not know.
John

[Screwy]

I think you are right about the three radiators in the size and layout, as I have all three here, but I would look at the spacing of the tubes in the core. In the radiators I have the L28 and P40 have 12mm spacing giving 36 rows but the SD33 has 10mm spacing giving it 48 rows, which should be more efficient I think, maybe you can get this core for all of them but I do not know.
John

you are correct on this mate. there are radiators with more cores that others..... i have seen them in all models though.

but either way heath you will need a 48 row radiator regardless of what its out of.

screwy

[V8Patrol]

add to your confusion......

Count the cores in the radiator too ......... some have a 36 core unit whilst others run a 48 core unit....... you WANT the 48 core unit for ANY V8 !

As for inlet/outlets just change em over ......
Drill a hole where ya want the new inlet / outlet placed & solder em in.
Blank off the old holes using a brass welsh plug.

I needed additional bendin in my bottom outlet for the Chev to get around the pwr str box so I got copper elbows in the size I wanted from the local plumbers shop and soldered em in .

Done !


Kingy