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Engine Specific Info and Questions => IDI Engine => Topic started by: dieseldunebuggy on December 25, 2007, 11:24:40 am

Title: Head gasket question
Post by: dieseldunebuggy on December 25, 2007, 11:24:40 am

I have the early 1981 1.6l diesel engine with the 11mm head bolts. If I drill out the holes for the 12mm head bolts, will the 12mm head gasket work? I was told the oil passages are different.

Title: Head gasket question
Post by: vanagonturbo on December 25, 2007, 11:38:10 am

Why are you trying to use the 12mm gasket?

Title: Head gasket question
Post by: dieseldunebuggy on December 25, 2007, 12:09:25 pm

Well if I put 12mm head bolts in wouldn't the holes be to small in the 11mm head gasket?

Title: Head gasket question
Post by: ilomax on December 25, 2007, 12:52:50 pm

Huh?
Did you switch the head or the block?
Why are trying to put in 12mm bolts?

Title: Head gasket question
Post by: dieseldunebuggy on December 25, 2007, 01:09:55 pm

Everything is the stock 11mm. I want to put in 12mm head bolts so I won't blow the head gasket as easy when I do some performance mods on the engine.

Title: Head gasket question
Post by: Dsldub on December 25, 2007, 04:02:49 pm

edited for content

Title: Head gasket question
Post by: vanagonturbo on December 25, 2007, 09:16:00 pm

The jury is still out on the metal head gasket on my scirocco so I cant really recommend that at this time.

Be careful about the ARP if you dotn plan on retorquing them. They will need it over time.

Try to source an NA 12mm block if your funds are limited.

Title: Head gasket question
Post by: ilomax on December 25, 2007, 09:58:32 pm

Ahhh, I got ya now.

I would personally go with the head studs or source out a 12mm head and block (or at least a block and drill out the head)

Title: Head gasket question
Post by: dieseldunebuggy on December 28, 2007, 05:18:34 pm

I have ordered some 11mm ARP head studs from ARP. Thanks for all your help.

Title: Head gasket question
Post by: oldskool rich on December 29, 2007, 06:12:44 am

aaz is 11mm isnt it?

where can you get these studs from? i asked the ARP dealer on ebay and he told me that they dont make them.

also how much are they?

Title: Head gasket question
Post by: jimfoo on December 29, 2007, 06:48:49 am

AAZ are 12 mm. Do a search for ARP on the forum and you will find the #s. In ARP's book, they are listed for a Cosworth.