924Board.org

kylekev · Joined: 02 Jan 2012 Posts: 49 Location: Evansville Indiana

My son and I are rebuilding a 1978 924 motor and discovered the bolts for the connecting rod caps are no longer available. is there a substitute available or where can these be obtained?

ideola · Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI

The only available replacements are from ARP, and only when we do group buys. You just missed the last group buy, and I have sold all of the extra sets I ordered.

ARP do not stock them, nor do any of the usual resellers. ARP will only make them with a minimum order of 5 sets (40 pieces). I'm happy to coordinate another group buy if you can find four more participants.
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erstwhile owner of just about every 924 variant ever made

Kenodog · Joined: 25 Jun 2003 Posts: 2651 Location: Vancouver,B.C.

If you want a used set I can hook you up and if you want a new set of the ARP bolts I have a set of those as well.

Leigh
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1979 Euro 931, Olive
1981 931, Sabine
1991 Ford Ranger XLT 4x4, Ricky
1996 Ford E-350 ex-FedEx Van
2014 Mazda CX-5 (Kinderwagon)
2019 KTM 790 Adventure
2024 KLX300
2024 KLX140

kylekev · Joined: 02 Jan 2012 Posts: 49 Location: Evansville Indiana

Thanks for your feedback. I have read these bolts should be replaced because of a stretch issue. Can they be reused or reconditioned?

daniel · Joined: 18 Jun 2009 Posts: 670 Location: Sydney, Australia

I have reused rod bolts in my race motor, but I NEVER go over the stock red line. If I was building a motor that required new rod bolts, IMHO that would automaticly qualify the motor for a nice new set of steel rods
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Over the top of skyline, total brake failure.... hit the wall at over 200 kp/h at the dipper, so anyone who has to brake for the esses is a pussy.
1977.5 Race Car, CAMS Group S Spec
1989 944 Cabriolet

Kenodog · Joined: 25 Jun 2003 Posts: 2651 Location: Vancouver,B.C.

I have 3 sets of used 931 rod bolts. I will FPI them and then glass bead them. Like Daniel said they will be fine. You can get a new set of ARP rod nuts from Ideola I think.
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1979 Euro 931, Olive
1981 931, Sabine
1991 Ford Ranger XLT 4x4, Ricky
1996 Ford E-350 ex-FedEx Van
2014 Mazda CX-5 (Kinderwagon)
2019 KTM 790 Adventure
2024 KLX300
2024 KLX140

CorsePerVita · Joined: 25 Jul 2008 Posts: 1992 Location: Redmond, Oregon

Give EBS Racing a call, they sold me some ARP bolts not that long ago.
http://www.ebsracing.com/

They're a bit expensive (but better prices than I found everywhere else), but on the happy side, you won't ever need bolts again. The only thing that sucked was that they didn't have nuts and had to use Porsche nuts which were something like $7 a pop.

Very happy with mine.

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- 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS

ideola · Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI

I am self-funding a new round of production on these bolts. See details here: http://www.924board.org/viewtopic.php?t=41557
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erstwhile owner of just about every 924 variant ever made