Rod Bolt torque

Mike Pearson · 09-29-2009, 11:32 AM

I bought a super stock engine with a set of Childs and Albert steel rods in it. They look similar to a stock 350 chevy rod. The rod bolt looks like a 3/8 ARP wavelock type bolt. I need the torque spec for this rod. Thanks

Alan Roehrich · 09-29-2009, 04:50 PM

Mike,
If it is an ARP bolt, you can usually call ARP and get a torque spec and a stretch spec. If you ever start using a stretch gauge, using a torque wrench on rod bolts will make you very nervous.

BillK · 09-29-2009, 07:14 PM

Mike,

Contrary to what Alan said, I have had no luck at all getting ARP to give a torque or stretch spec unless the bolt is one of thier packaged part numbers. As soon as you state that the bolt is in an Eagle ( or C&A, or Scat) rod, they tell you to call the manufacturer. I am under the impression that different manufacturers use the same bolt with different torque specs, and this has been the case several times.

I would call C&A and ask them to be sure.

Glenn Briglio · 09-29-2009, 07:48 PM

C&A is out of business. Try recalling ARP and crying on their shoulder.

Alan Roehrich · 09-29-2009, 08:02 PM

ARP will normally give you a spec IF the original manufacturer of the rod gives one, ARP will have it. If the original manufacturer of the rod does not give a spec (for example, Eagle does not give a stretch spec on some of the SIR rods) then ARP will not have the spec to give.

If ARP does not have it, then you might try a vendor who used to sell C&A products. They may have an old catalog. Normally I save those. I also save the spec sheet on parts, but I don't have anything on C&A rods.

If you do not know what they were originally torqued or stretched to, I strongly suggest that whatever spec you decide to use, you torque them up in a vise outside the engine first, and have them checked for size and roundness, just to make sure you don't create a problem.

Bub Whitaker · 09-29-2009, 08:19 PM

Alan... your a wise man...

BillK · 09-30-2009, 06:23 PM

Quote:

Originally Posted by Glenn Briglio

C&A is out of business. .

Boy do I feel out of touch

Mike Pearson · 10-01-2009, 12:25 PM

Thanks Al,

That is the rod that is in this engine. I knew someone would have an old C/A catalog out there. Thats the great thing about this site We all try to help each other out. Thanks for taking the time to look for the information that I needed.

09-29-2009, 11:32 AM	#1
Mike Pearson VIP Member Join Date: Mar 2007 Posts: 2,447 Likes: 615 Liked 1,919 Times in 576 Posts	Rod Bolt torque I bought a super stock engine with a set of Childs and Albert steel rods in it. They look similar to a stock 350 chevy rod. The rod bolt looks like a 3/8 ARP wavelock type bolt. I need the torque spec for this rod. Thanks __________________ Mike Pearson 2485 SS

09-29-2009, 04:50 PM	#2
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,111 Likes: 1,570 Liked 1,816 Times in 413 Posts	Re: Rod Bolt torque Mike, If it is an ARP bolt, you can usually call ARP and get a torque spec and a stretch spec. If you ever start using a stretch gauge, using a torque wrench on rod bolts will make you very nervous. __________________ Alan Roehrich 212A G/S

09-29-2009, 07:14 PM	#3
BillK Member Join Date: Nov 2005 Location: Waldorf Md Posts: 230 Likes: 12 Liked 30 Times in 17 Posts	Re: Rod Bolt torque Mike, Contrary to what Alan said, I have had no luck at all getting ARP to give a torque or stretch spec unless the bolt is one of thier packaged part numbers. As soon as you state that the bolt is in an Eagle ( or C&A, or Scat) rod, they tell you to call the manufacturer. I am under the impression that different manufacturers use the same bolt with different torque specs, and this has been the case several times. I would call C&A and ask them to be sure. __________________ Bill Koustenis

09-29-2009, 07:48 PM	#4
Glenn Briglio VIP Member Join Date: Nov 2002 Location: Massapequa Park,NY Posts: 1,281 Likes: 1,896 Liked 969 Times in 307 Posts	Re: Rod Bolt torque C&A is out of business. Try recalling ARP and crying on their shoulder. __________________ 1989 Camaro Iroc-Z I/SA B&B Auto Machine Shop.

09-29-2009, 08:02 PM	#5
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,111 Likes: 1,570 Liked 1,816 Times in 413 Posts	Re: Rod Bolt torque ARP will normally give you a spec IF the original manufacturer of the rod gives one, ARP will have it. If the original manufacturer of the rod does not give a spec (for example, Eagle does not give a stretch spec on some of the SIR rods) then ARP will not have the spec to give. If ARP does not have it, then you might try a vendor who used to sell C&A products. They may have an old catalog. Normally I save those. I also save the spec sheet on parts, but I don't have anything on C&A rods. If you do not know what they were originally torqued or stretched to, I strongly suggest that whatever spec you decide to use, you torque them up in a vise outside the engine first, and have them checked for size and roundness, just to make sure you don't create a problem. __________________ Alan Roehrich 212A G/S

09-29-2009, 08:19 PM	#6
Bub Whitaker Member Join Date: Feb 2005 Location: Dayton, MD Posts: 222 Likes: 0 Liked 1 Time in 1 Post	Re: Rod Bolt torque Alan... your a wise man... __________________ Bub Whitaker

10-01-2009, 12:25 PM	#8
Mike Pearson VIP Member Join Date: Mar 2007 Posts: 2,447 Likes: 615 Liked 1,919 Times in 576 Posts	Re: Rod Bolt torque Thanks Al, That is the rod that is in this engine. I knew someone would have an old C/A catalog out there. Thats the great thing about this site We all try to help each other out. Thanks for taking the time to look for the information that I needed. __________________ Mike Pearson 2485 SS