[Vwdiesel] Is a 1.5 diesel head interchangeable with the 1.6 diesel head?

[Tony and Lillie]

Hmm, I'll have to look at mine. But, I didn't use any adapter and don't leak any oil at all. The head cam off a stock 1.5 from a 79 rabbit, and went onto my 1.6 82 Jetta. I did have to drill out the holes, but other than that, nothing else to bolt it on. I'll look at it and take some pics as far as the oil holes lining up. I know the hydraulic heads are incompatible with the early ones, but I was under the impression that the rest of them were the same.

Tony


-----Original Message-----
>From: LBaird119 at aol.com
>Sent: Feb 13, 2010 12:29 PM
>To: vwdiesel at vwfans.com
>Subject: Re: [Vwdiesel] Is a 1.5 diesel head interchangeable with the 1.6	diesel head?
>
>In a message dated 2/13/2010 7:45:16 AM Pacific Standard Time, 
>tonyandlillie1 at earthlink.net writes:
>
>> It all depends on the head bolt size. The 1.5's use the smaller bolts, as 
>> do the early 1.6's. Sometime they changed teh 1.6 to the larger bolts, I 
>> think it was in 82. I know for a fact my 1.6 1982 Jetta used the larger 
>> bolts, and the 1.5 head I had I needed to bore out to accept the bolts from the 
>> Jetta. So, you need to know what size the holes are for those bolts. Other 
>> than that, they should be compatible. Unless I'm missing something??
>> 
>
>  The oil return holes are different.  1.5 head has small return holes, 
>11mm bolt holes;  '81 head has large return holes, 11mm bolt holes; 
>'82 on has large return holes, 12mm bolt holes.
>  What's his name (dieselparts.com?) sells a bushing to seal up the 
>larger hole (front, center) when putting a large hole head on a small 
>hole block or vise versa.  Otherwise you'll get a big oil leak.
>    Loren
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