CA18DET arp cam cap bolts

Discuss topics related to the CA18DE and CA18DET series engines.
Garreth
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Joined: Wed Mar 18, 2015 8:43 pm
Car: 180sx

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Does any body have a part number for ARP or some other heavy duty cam cap bolt for CA18DET?


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float_6969
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No. But why would you need them? The cam bolts aren't exactly a highly stressed bolt.

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float_6969
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Plus IIRC, they're shouldered to center the cam cap properly.

Garreth
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Joined: Wed Mar 18, 2015 8:43 pm
Car: 180sx

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Because it makes 400kw at the wheels and the bolt sare old and brittle.

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float_6969
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Steel doesn't just get brittle with age and the power you're making has no impact on the cam cap bolts. It could make twice that much power, it has no effect on the stress levels the cam cap bolts see.

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mdb4879
Posts: 419
Joined: Sat Jul 02, 2011 9:36 am
Car: 1987 Nissan Pulsar SE (CA18DET)
1990 Nissan 240SX (KA24E)
1995 Acura Integra GSR

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Corrosion and over torque will. I had a cam cap bolt break in my head before it even seated. I'm thinking it was already cracked, though. But new OEM bolts would be just fine if they're available.

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mdb4879
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Joined: Sat Jul 02, 2011 9:36 am
Car: 1987 Nissan Pulsar SE (CA18DET)
1990 Nissan 240SX (KA24E)
1995 Acura Integra GSR

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If he's dead set on ARP, though, he could measure the stock bolts and call ARP to see if they have anything that match. But if they shift the caps any then the bores may need to be resized much like with rod and main bores.


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