OBD1 Head on OBD2 Engine?

General discussion forum about the 240sx, and a great place to introduce yourself to the board!
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GODCHSR
Posts: 840
Joined: Sat Oct 28, 2006 2:45 am
Car: 1996 Nissan 240sx

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I am yet to mess with the mechanics of this car so I have no idea the answer to the question...Is the OBD1 Head swappable to the OBD2 Car?

(Obviously it is but what is different?)


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rustest86
Posts: 308
Joined: Mon Aug 29, 2005 8:19 am
Car: 93 240 coupe SR20DET Greddy T518Z, Tomei 256* poncams, sti injectors, and fmi
Location: Lake Charles, LA

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i put an s13 head on an s14 block in an s14 and the only 3 differences that i found was 1 10mm bolt that goes trough the head to the block on the exhaust side in the front didnt line up, and the upper timming cover didnt seal up, the cover had one spot that bulged out under a bolt. and the valve cover had a different bolt pattern. make sure you get the s13 upper timming cover and valve cover too. other than that it works just fine.

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GODCHSR
Posts: 840
Joined: Sat Oct 28, 2006 2:45 am
Car: 1996 Nissan 240sx

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rustest86 wrote:i put an s13 head on an s14 block in an s14 and the only 3 differences that i found was 1 10mm bolt that goes trough the head to the block on the exhaust side in the front didnt line up.
What bolt is this for?

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rustest86
Posts: 308
Joined: Mon Aug 29, 2005 8:19 am
Car: 93 240 coupe SR20DET Greddy T518Z, Tomei 256* poncams, sti injectors, and fmi
Location: Lake Charles, LA

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idk i guess it there to help seal the timming cover to head gasket

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GODCHSR
Posts: 840
Joined: Sat Oct 28, 2006 2:45 am
Car: 1996 Nissan 240sx

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OK, so it wasn't a head bolt or anything serious. Thank God

s14derrick
Posts: 1322
Joined: Thu Jun 19, 2008 12:09 pm
Car: 1995 nissan 240sx
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obd1 and obd2 s14 heads are the same. the only differenece that i know of is a few sensores on the intake manifold.at least thats all i had to swap out to downgrade an obd2 97 ka into my 95 obd1 s14


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