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"Copper" colored connecting rods in an engine (318)??? #1167941 01/29/12 08:23 PM 01/29/12 08:23 PM
Joined: Aug 2005 Posts: 697 Central IL 70Sbird OP mopar
70Sbird OP mopar Joined: Aug 2005 Posts: 697 Central IL	Hey all quick question here, I stripped down a 1977 318 for a quickie overhaul and found it has been gone through before. It has .030 over flat top pistons and the rods and mains are .010 under as well. One thing I did notice was that two of the connecting rods are "Copper" colored. It doesnt appear to be paint, but some other coating or cleaning process? I havent see anything like that before. anyone know what is going on here. Thanks Scott 7043224-IMG_1139.JPG (166 downloads)

Re: "Copper" colored connecting rods in an engine (318)??? [Re: 70Sbird] #1167942 01/29/12 08:41 PM 01/29/12 08:41 PM
Joined: Aug 2003 Posts: 43,219 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,219 Bend,OR USA	Not unusual to see that in motors straight from Mopar,Especailly SB Probally a coating put on them to bring them into spec. on the rod bearing or wrist pin ends Or both ends Last edited by Cab_Burge; 01/29/12 08:42 PM. Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: "Copper" colored connecting rods in an engine (318)??? [Re: 70Sbird] #1167943 01/29/12 09:04 PM 01/29/12 09:04 PM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	I have a bunch of the copper ones, BB I think. Not sure of the purpose either live every 24 hour block of time like it's your last day on earth

Re: "Copper" colored connecting rods in an engine (318)??? [Re: Cab_Burge] #1167944 01/29/12 09:04 PM 01/29/12 09:04 PM
Joined: May 2003 Posts: 15,487 Florida S scratchnfotraction I Live Here
scratchnfotraction I Live Here S Joined: May 2003 Posts: 15,487 Florida	IIRC those rods were factory check and had a dye put on them,they did every so many comeing down the line. sorta like the stock pink rods chebby guys drool over,they will hunt up 8 pink rods,suposed to be the strongest of the stock rods and passed inspection. I have changed colors on metal by soaking it in carb cleaner..but never got a copper color. but this is all hear say from my machine shop guy

Re: "Copper" colored connecting rods in an engine (318)??? [Re: 70Sbird] #1167945 01/29/12 09:44 PM 01/29/12 09:44 PM
Joined: Sep 2003 Posts: 1,688 Marlboro, NY, USA R Rick_Ehrenberg top fuel
Rick_Ehrenberg top fuel R Joined: Sep 2003 Posts: 1,688 Marlboro, NY, USA	Yup, just copper plating to bring the big-end bore into spec. Rick

Re: "Copper" colored connecting rods in an engine (318)??? [Re: Rick_Ehrenberg] #1167946 01/29/12 09:53 PM 01/29/12 09:53 PM
Joined: Aug 2005 Posts: 697 Central IL 70Sbird OP mopar
70Sbird OP mopar Joined: Aug 2005 Posts: 697 Central IL	Thanks everyone, So Rick, I'm assuming that if the plating is to bring the rod back into spec, is this likely then a Mopar Remanufactured engine?

Re: "Copper" colored connecting rods in an engine (318)??? [Re: 70Sbird] #1167947 01/30/12 12:04 AM 01/30/12 12:04 AM
Joined: Jan 2003 Posts: 6,531 Jacksonville, FL Chris2581 master
Chris2581 master Joined: Jan 2003 Posts: 6,531 Jacksonville, FL	I had a 318 that was original to the car and had 3 copper clad rods in it. Nautilus Racing- We use Superformance gaskets and Turbo Action converters/products.

Re: "Copper" colored connecting rods in an engine (318)??? [Re: 70Sbird] #1167948 01/30/12 12:34 AM 01/30/12 12:34 AM
Joined: Jan 2003 Posts: 75,043 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,043 U.S.S.A.	Quote: Thanks everyone, So Rick, I'm assuming that if the plating is to bring the rod back into spec, is this likely then a Mopar Remanufactured engine? No , NOTHING is wasted , they fixed everything for use.

Re: "Copper" colored connecting rods in an engine (318)??? [Re: Chris2581] #1167949 01/30/12 12:43 AM 01/30/12 12:43 AM
Joined: Jul 2006 Posts: 528 N.W. Indiana DblOJoe mopar
DblOJoe mopar Joined: Jul 2006 Posts: 528 N.W. Indiana	All of my '69 440 rods look like that on the entire rod... 7043752-141.JPG (270 downloads)

Re: "Copper" colored connecting rods in an engine (318)??? [Re: 70Sbird] #1167950 01/30/12 12:48 AM 01/30/12 12:48 AM
Joined: Jan 2003 Posts: 28,068 Irving, TX feets Senior Management
feets Senior Management Joined: Jan 2003 Posts: 28,068 Irving, TX	Quote: Thanks everyone, So Rick, I'm assuming that if the plating is to bring the rod back into spec, is this likely then a Mopar Remanufactured engine? Chances are it was done during the original assembly. If the rods were manufactured a wee bit undersized they could plate the rods to get the proper width. It sure beats scrapping them. We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon

Re: "Copper" colored connecting rods in an engine (318)??? [Re: 70Sbird] #1167951 01/30/12 05:07 PM 01/30/12 05:07 PM
Joined: Aug 2005 Posts: 697 Central IL 70Sbird OP mopar
70Sbird OP mopar Joined: Aug 2005 Posts: 697 Central IL	Thanks for the responses, i'll just ignore the color and rebuild as planned!

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