Inliners International
Posted By: RacerRoy3 Weight of 302 GMC rod? - 12/11/13 12:09 PM
Any one know how much a 302 GMC connecting rod with the small wrist pin weights?
Posted By: CNC-Dude #5585 Re: Weight of 302 GMC rod? - 12/11/13 11:26 PM
I've got some, but i'll have to see if my scales go that high, they are real heavy rods even with the small pins.
Posted By: Beater of the Pack Re: Weight of 302 GMC rod? - 12/12/13 02:17 PM
There's a small pin? \:o
Posted By: CNC-Dude #5585 Re: Weight of 302 GMC rod? - 12/12/13 03:23 PM
Yep, it's in the book. There's also different small pin rods that can cause you issues if you have a mis-matched set, so you need to make sure they all match before you start an engine build.
Posted By: CNC-Dude #5585 Re: Weight of 302 GMC rod? - 12/12/13 08:10 PM
 Originally Posted By: RacerRoy3
Any one know how much a 302 GMC connecting rod with the small wrist pin weights?

The small pin rod I weighed comes in at 998 grams.
Posted By: RacerRoy3 Re: Weight of 302 GMC rod? - 12/13/13 09:16 AM
Thanks a lot, CNC-Dude #5585. This information is really helpful. Does your weight include the pin?
Posted By: CNC-Dude #5585 Re: Weight of 302 GMC rod? - 12/13/13 02:43 PM
No, its just the bare connecting rod with the caps, bolts and nuts. With polishing, lightening and balancing you can safely take another 25-30g off of the total weight.
Posted By: RacerRoy3 Re: Weight of 302 GMC rod? - 12/14/13 11:38 AM
Thanks for spending the time to get the weight for me.
Posted By: Beater of the Pack Re: Weight of 302 GMC rod? - 12/14/13 02:06 PM
What are the two pin sizes?
Posted By: CNC-Dude #5585 Re: Weight of 302 GMC rod? - 12/14/13 03:07 PM
.990" and 1.052"!
Posted By: Beater of the Pack Re: Weight of 302 GMC rod? - 12/14/13 08:55 PM
Oh, There's not a big and a little. There's a big and a \:D bigger.
Posted By: CNC-Dude #5585 Re: Weight of 302 GMC rod? - 12/14/13 09:58 PM
The good thing about the small pin rod is it is the same size as the Big Block Chevy wrist pin, and makes it easy to get standard standard available pins when getting custom pistons made.
Posted By: Beater of the Pack Re: Weight of 302 GMC rod? - 12/15/13 12:11 PM
Is the hole bigger or is the bushing thinner for the big pin.
Posted By: CNC-Dude #5585 Re: Weight of 302 GMC rod? - 12/15/13 03:23 PM
Its a different forging and has a bigger diameter hole with a larger bushing in it for the bigger pin.
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