Hi, I have D port heads on my 72 V6 but have the offset fan cover on car. I am re gasketing timing cover and was going to put on my centre fan D port timing cover that I had lying around. I have noticed that the centre fan cover pulley connection sticks out about 15mm more which would put my fan belt out of line with all other pulleys. Is this normal with centre fan cover? Do I have to get deeper fan pulley so it sits back further or extend other pulleys? If its all too hard I will just put off centre fan cover back on. Cheers PSR

Two different bearings were used for the timing cover. You might be able to swap the bearing.

Yes u have to use the larger pulley

I have done it in the past, I *think* I used the 1600 pulley to get the fan belt to line up

Thanks guys, can't change out bearings as extra length is in the casting. Will look at pulley situation. cheers

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I think I’m correct in saying the only difference in DPort to Oval port was the place of the fan. The pulleys were the same size and offset. The covers are the same thickness off from the engine is the same. So it can only be the bearing.

No

The larger one is the d port style - larger OD and deeper