14 bolt heads on a 10 bolt block ?

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30EK42
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14 bolt heads on a 10 bolt block ?

Post by 30EK42 » Thu Oct 17, 2019 10:43 pm

I've not had a chance to look at this yet as my spare (SD1) heads are burried in my loft somewhere :shock:
But basically I've got a 4.0 bottom end with 10 bolt head fixings.
Do I need to buy matching 10 bolt heads ?
Or is it possible to use the earlier 14 bolt type and just omit the other four bolts ?



unstable load
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Re: 14 bolt heads on a 10 bolt block ?

Post by unstable load » Fri Oct 18, 2019 12:17 am

No problem with using the 14 bolt heads, just omit the 4 bolts.
You can cut the heads off some bolts and epoxy them in place if you want to be picky.
Cheers,
John

30EK42
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Re: 14 bolt heads on a 10 bolt block ?

Post by 30EK42 » Fri Oct 18, 2019 7:01 am

Cheers John.
That means that I can press on with building the thing without spending a truck load of dosh

30EK42
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Re: 14 bolt heads on a 10 bolt block ?

Post by 30EK42 » Fri Oct 18, 2019 9:07 am

Now I've got to thinking about which type of head gaskets to use, early or late ?
Does it matter ?
More research required on my part I think

unstable load
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Re: 14 bolt heads on a 10 bolt block ?

Post by unstable load » Sat Oct 19, 2019 12:37 am

I don't think it matters, but if you want to keep CR, the tin gaskets were used on the 14 bolt heads, or you can skim the heads for the later composite gaskets. Alternatively, if CR isn't an issue, then use your favourite supplier.
Cheers,
John

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