Aluminum rods.

[skipxt4]

 

[427John]

Some people have claimed that aluminum rods will last just fine if not subjected to the racetrack level rpm's they are designed for,is there any truth to that or is it just wishful thinking?

 

[Skip FIx]

Pontiac's H-O Racing(one of the first Pontiac parts guys and two engineers) in the late 70s early 80s used BMEs in street motors. Back then Pontiac had few good rod options other than Carillos($$). They seemed to do OK then but again need some heat in the motor before winging it.

 

[Barry Taylor]

I was told by BME that heat cycling plays a big part in there longevity. I have a new set of the older ones.

 

[427John]

I had always wondered about that,since they are used in small engines some that go for 2000 hours or more.But when they're done they're done and they don't have any qualms about telling you.

 

[La Hot Rods]

https://www.dragzine.com/tech-stories/five-things-you-need-to-know-about-aluminum-connecting-rods/

 

[Skip FIx]

You also have to have bearings drilled for the tab in rod cap. Some you can buy already drilled, none for Pontiacs.

 

[Barry Taylor]

Good read James! “Thanks”

 

[Phil Reed]

Barry's off to the aluminum rod store!!!!!!

 

[El Rat]

We changed rods every 25 runs (+ minus 3). If it ever goes into neutral under power it will blow up on the next run if you don’t change rods!

 

[Don Jacks]

Barry has more sense than that Phil!

 

[Barry Taylor]

Ronnie and I discussed aluminum rods once. “Thanks Don”

 

[427John]

We changed rods every 25 runs (+ minus 3). If it ever goes into neutral under power it will blow up on the next run if you don’t change rods!

Why does that statement sound like you found that out the hard way?

 

[El Rat]

Yes!