No subject

from the pre 81 1.5s to 1.6s in late 81 and later. 1.5 heads and blocks have
11 mm head bolts and a small oil hole and they fit nothing else. Early 1.6
heads and blocks( about late 80 to early 81 )had the larger oil return holes
but still used 11mm bolts. These heads can be used on the later 12 mm bolt
1.6 blocks by just taking a drill of the appropriate size and clearencing
the bolt holes to take the 12 mm bolts. 1.6 12 mm bolt heads would be pretty
sure to fail in my estimation if someone tried to use one on a 1.6 block
with 11 bolts. I think some people think because a head has 11mm head bolts
it was from a 1.5 when in fact the difference between 1.5 and 1.6 blocks is
the size of the oil return hole on the front of the block. The only swap as
I see it is the early 1.6 head that has the large oil return hole but 11mm
bolts can be used on the later 1.6 block by clearancing the bolt holes to
take 12mm bolts.
Brian Decker

-----Original Message-----
From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com] On
Behalf Of Tony and Lillie
Sent: Saturday, May 26, 2007 8:58 PM
To: Shawn Wright; vwdiesel at vwfans.com
Subject: Re: [Vwdiesel] 1.6 head on 1.5 block?

I did the opposite, put a 1.5 head on a 1.6 block. I think the only real 
problem would be getting it to line up. This is because, the holes in a 1.6 
head are 12mm, and the 1.5 uses 11mm bolts. Probably require some sort of 
spacer in two of the head bolt holes.

Tony Hoffman

----- Original Message ----- 
From: "Shawn Wright" <vwdiesels at gmail.com>
To: <vwdiesel at vwfans.com>
Sent: Thursday, May 17, 2007 9:12 AM
Subject: [Vwdiesel] 1.6 head on 1.5 block?


> I'm sure I've asked this before, but can't find the emails, so here goes 
> again...
>
> I have what I believe to be a good 1.5 block with 2nd O/S pistons that 
> look nearly new, but
> the head looks pretty rough, with deep scratches. Is there any way to make

> a 1.6 mechanical
> head work on a 1.5 block, or are there too many differences in oil holes, 
> etc?
>
> I'm still pondering options for the tired, leaky old 1.6NA in my Jetta.
>
>
> Shawn Wright
> http://members.shaw.ca/vwdiesels
> '88 Westy 1.6TD 5 speed
> '85 Jetta Diesel 1.6NA
>
> _______________________________________________
> Vwdiesel mailing list
> Vwdiesel at vwfans.com
> http://www.audifans.com/mailman/listinfo/vwdiesel 

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