1HD-T vs 1HZ Connecting rod (1 Viewer)

[jasonMartins]

Hi there
My 1HD-T needs a rebuild, the engine builder told me that the connecting rods needs to be replaced, i have a 1HZ engine from a 78 land cruiser in good condition laying around and was wondering if i can take the conrods from that engine. According to the parts catalogue the part numbers are not exactly identical...

Can anyone tell me if they are interchangeable?

Thanks Jason

 

[DivByZero]

From what I've heard (can't confirm from personal experience), the conrods in the 1HD-T are stronger than the ones in the 1HZ, and presumably are needed to withstand the extra pressure the turbo puts on the engine. While I believe the 1HZ conrods should "fit", you'll end up with a weaker bottom end. I'd recommend sticking with the conrods designed for the 1HD-T.

 

[AussieHJCruza]

From memory, the wristpin end of the 1HDT conrod is larger than the 1HZ, big end is the same.

It's been a while since I worked on one so may be incorrect but I don't think they're interchangeable.

 

[mudgudgeon]

Not interchangeable.

As above, the wrist pin is a larger diameter in the 1hd-t.

You can do the opposite and use 1hd-t rods in a 1hz IF you use aftermarket turbo pistons made to suit the larger pin.

 

[jasonMartins]

Great, thanks guys for your replies, so i can save the time stripping the 1hz apart just to find out the work wasn't worth it