All bolts stretch, It's the amount of the stretch that is the point. I have used ARP bolts exclusively since I had a bad experience with "used" rod bolts. I reused a set of rod bolts on a GM 396 rebuild years ago, we hopped up the motor with some go-fast adders like intake, racing heads and the like. I am very meticulous about torque settings when building an engine, on this one we "staged" the torque settings just as the manual said. The engine ran fine once started, we "ran-in" the cam for 30 minutes at 2,000 rpm just like we should, the engine got up to temp and we backed it out of the garage for a trip down the street to see what we had made. I put the car in drive and as soon as the engine speed went from about 1,100 to 2,000 a rod bolt let go. Needless to say my buddies and I were upset, we thought it was something we had done but once we tore the engine down we found the problem. I took the suspect rod, piston and cap to Laughlin Racing (http://www.laughlinracing.com/) which is near my home and they confirmed the problem. A $2.00 bolt and nut ATE $1,100.00 worth of machine shop work and parts. So as the old adage goes, you can pay now or pay much more later!
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Larry Vaughan Sent: Thursday, January 09, 2003 7:27 PM To: [EMAIL PROTECTED] Subject: Re: new motor I bought all the parts for my motor rebuild from BPNW. I asked them about new rod bolts. They said the original rod bolts were reusable, unless they were stretched, and if I didn't need them I could return them. The machine shop said they used the old rod bolts because the new ones stretched??? I called BPNW and they said, we received a bad batch of rod bolts, but thought we had culled out the untempered little culprits. You must have got some we missed. We will have them picked up, by UPS, and refund your money. Larry /// [EMAIL PROTECTED] mailing list /// Send admin requests to [EMAIL PROTECTED] /// or try http://www.team.net/cgi-bin/majorcool /// Archives at http://www.team.net/archive /// Send list postings to [EMAIL PROTECTED] /// Edit your replies! If they include this trailer, they will NOT be sent.
