Author Topic: pink rods (Read 14543 times)

camaromikey · « **on:** June 11, 2007, 01:43:48 AM »

i hear this alot but what are pink or O rods? what engines used them? I was wondering because there is a set on ebay and the only marking they show are O on the rod caps. They look just like a set of rods that came in 327 Im building. the engine came out of 69 impala orignnally.

camaromikey · « **Reply #1 on:** June 11, 2007, 01:47:42 AM »

where they ever used in a 327?

VI009DZ · « **Reply #2 on:** June 11, 2007, 12:06:03 PM »

I would be very wary of pink rods from eBay. Back in the day, they were marked with a small dab of pink paint, kidn of like using a nail polish brush to dab it on. The ones I've seen on eBay have the whole beam of the rod smeared with pink! With the price of parts like that today, I'd just get some new rods from Summit that are known 100% and run them.

sd1968z28 · « **Reply #3 on:** June 11, 2007, 09:05:54 PM »

i believe the only diff between pink rods and others is shot peening process, any competent machine shop can upgrade your rods to same specs, dont forget to mag them and install new bolts.

camaromikey · « **Reply #4 on:** June 12, 2007, 02:52:48 AM »

i had mine check but i was just wondering if they shot peened the rods they used in a 327 or used a pink rod in them.

Jerry@CHP · « **Reply #5 on:** June 13, 2007, 03:14:57 AM »

Only the 302s got the good rods, and the difference was shot peening, magged and stronger rod bolts. They also have babbot in the small end of the rod for the floating wrist pins. I have a set of original 69 pink rods that I'm putting on Ebay to see if they do stupid money.

Jerry

Buddy · « **Reply #6 on:** June 13, 2007, 08:19:55 PM »

I was told many years ago that pink rods were no different, they were the rods from the production stage that were dabbed pink to mark them for quality control. They were pulled from the line at random and checked for accuracy. This may all be bull but I believed it?

camaromikey · « **Reply #7 on:** June 13, 2007, 08:48:00 PM »

is there any difference between the rods of a large journal 327 and a 350.

Jerry@CHP · « **Reply #8 on:** June 14, 2007, 03:00:21 AM »

No difference,

JM

camaromikey · « **Reply #9 on:** June 14, 2007, 03:17:24 AM »

what are the indentifying marks to tell if its a regular rod or a pink rod

Jerry@CHP · « **Reply #10 on:** June 14, 2007, 03:31:40 AM »

Half of the rod is fadded pink in color, traces of shot peening too. Towards the small end and there are traces of babbot in the small end hole for the floating wrist pin. Many have the Os on the cap but I have also seen them without the Os.

Jerry

camaromikey · « **Reply #11 on:** June 14, 2007, 03:47:51 AM »

did they have some with pressed wrist pins?

1968RSZ28 · « **Reply #12 on:** June 14, 2007, 04:39:29 AM »

Quote from: camaromikey on June 14, 2007, 03:47:51 AM

did they have some with pressed wrist pins?

Yes, '67 and '68 Z/28s had pressed piston pins.

Paul

camaromikey · « **Reply #13 on:** June 14, 2007, 04:43:24 AM »

so is it possible for a 69 327 out of an impala to have "pink" rods?

1968RSZ28 · « **Reply #14 on:** June 14, 2007, 05:31:40 AM »

Quote from: camaromikey on June 14, 2007, 04:43:24 AM

so is it possible for a 69 327 out of an impala to have "pink" rods?

Not from the factory.

Paul

camaromikey · « **Reply #15 on:** June 14, 2007, 06:57:48 AM »

thank you guys so much. Im having this engine put together and i didn't want to just throw it together without know what everything was. everyone here is great help.

pickelnose · « **Reply #16 on:** June 14, 2007, 11:22:46 PM »

I just rebuilt an engine out of a 68 z28 and it had bronze bushings in the small end for floating pins.is this correct for a 68 engine.

Jerry@CHP · « **Reply #17 on:** June 17, 2007, 09:58:03 PM »

No it's not. There are rumors that late 68s got the floating pins. Have not seen any yet.

The 67 Z28 got 11/32 rods also referred to as the "green rods." I am working on another article (Z28) for CRG that will go into this in great detail.

Jerry

David Pozzi · « **Reply #18 on:** March 08, 2011, 04:04:47 PM »

The Corvette LT1 350's used the pink rods too as well as the 70 & up Special High Performance 350's. No Babbit dipped small ends though. magazines of the day used to say these rods were made with "fresh" forging dies & tooling plus shot peening. I have a couple of sets, & they have more than a small dab of paint on them.

L78 steve · « **Reply #19 on:** March 10, 2011, 01:28:54 AM »

Z/28's up to 74 had Pink rods. The pink will look orange upon disassembly after years of oil staining.

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Author Topic: pink rods (Read 14543 times)