91B alum Rods

Bill Johnson · Post by **Bill Johnson** » Sun Mar 15, 2009 7:38 pm

I have two Mac 91B engines that have alum rods in them. Who made these and where they any good? The beams seem to look like a Carrilo rod used in car engines. Not sure I want to use them? Any info????

Mike Anderson · Post by **Mike Anderson** » Sun Mar 15, 2009 10:16 pm

Hi,
Do you have any pictures of them? It's possible they are hyprode rods, but since they are in later engines it's possible they are some rods which I made in the mid 70's. Are you interested in selling or trading the rods and pistons for stock rods or parts. Let me know. Thanks Mike Anderson (317)729-2418 I will be on the road for the next 2 wks. you can just e-mail at fleagle14@embarqmail.com or call cell (317)512-3914

Bill Johnson · Post by **Bill Johnson** » Mon Mar 16, 2009 8:26 am

I will post some pics soon.

Bill Johnson · Post by **Bill Johnson** » Mon Mar 16, 2009 9:23 pm

Can anyone confirm that this is a Hyprode rod? It has a steel insert in the big end. Any history on it??

Bill Johnson · Post by **Bill Johnson** » Mon Mar 16, 2009 9:27 pm

Last Pic.

Michael Burke · Post by **Michael Burke** » Tue Mar 17, 2009 4:37 pm

It looks just like the Hyprode's I have and I've owned mine since the mid 60's. They also came in an angled cap version. I think it was supposed to reduce the stresses on the rod bolts. Mine have #12 fine thread fasteners rather than the #10's used with a stock Mc rod.

91B alum Rods

91B alum Rods

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Re: 91B alum Rods

Re: 91B alum Rods

Re: 91B alum Rods

Re: 91B alum Rods