Originally Posted by The Bulldog

Aluminum rods can be run on the street, but shouldn't be. They are a fast fatigue part and even at the drag strip need to be maintained and replaced pretty routinely. They require very specific clearances per given application and modification of the crank case and the crank in some cases. Also, any bearings you use will require a little work as well. A light Carrillo or Crower maxi-lite rod are a better trade off for a street driven car.

'Dog

Originally Posted by q16racer

so why is it that bill miller has such a different point of view? He said as long as care is given aka run the right oil weight and only get rough on the motor within a certain oil temp window, that aluminum rods are no different than anything else. yes, they stretch but what isnt going to stretch? you are talking about throwing 500-800grams x 4 of weight faster than you can blink.
he told me pretty specifically that there is no reason an AL rod couldnt be used on the street and not last for 100k miles. you just have to CARE for them and use more precaution in the building process as well as the running process.

he was also pretty blatant about peoples misinformation on AL rods but it doesnt matter at this point. people will believe whatever they want.

Originally Posted by The Bulldog

Don't take my word or anyone else's for that matter. Experience is the best path to knowledge and understanding.

'Dog

Originally Posted by f20b jones

I picked up a couple more h23 cranks if you still need one . I do beleive I gave you one with the 90mm sleeved block I sold you though. I'm curious to see what that intake manifold does all motor . I've always kinda regreted selling it to you lol. I picked up a few more things some stuff for my build and some extra . Let me know if you need something. I'm looking for a few things for customers cars also if you have anything hit me up. Matter fact I could use them rc 750 injectors for another h2b build . Hit me up . No pictures of the block I sold you ? I might need to buy it back lol to much stuff going on lol.

Originally Posted by The Bulldog

Run 'em in your street car. Don't take my word or anyone else's for that matter. Experience is the best path to knowledge and understanding.

'Dog

Originally Posted by 4piston

I don't think they are any different than a steel rod when setup properly. I have never had to change a set and have been running them for years. I'm not sure how many we have sold...a whole bunch!!...never had a failure.

I think people are afraid of them for a couple reasons...one they read stuff online posted by people who really don't have much experience with them or from people who read something then just repeat it. Secondly there have been a couple people that had failures and the pictures ended up all over the internet. Two of those that ring a bell you could see where the rod actually hit the block and they thought the rod failed...you have to account for the thermal expansion not only with oil clearance but with physical clearance in the block and piston. If your builder has experience and thinks through the simple details, you won't have an issue. Third....Not all aluminum rods are created equal. There are some good ones and some that aren't as good, just like anything else. The material itself has come a long way over the years, and I have a TON of faith in GRP. Last, I have had guys mention that top fuel and funny car change rods ever xx passes and they assume our applications have similar limited life because of that. Everything there has limited life Imagine a rod of any other material in that application!! It may not make it through the burnout LOL.

Bottom line, you can't make a steel rod anywhere close to that weight and retain strength. It is hard to make a 6" steel rod 400 grams that can hold over 400hp. Most 6" steel rods under 425-445 grams are rated under 100 BHP per rod and lower rpm. A 350ish gram aluminum rod can take over 1000hp.

Sorry for the long response...I just have a lot of confidence in them after putting a royal beating on them over the years.

Originally Posted by Chugger

No prob man thought i would ask.
Very nice build what fuel are you going on?

Originally Posted by dirtyharryhatch

local guys street car (red dsm) with groden billet aluminum rods.









Something else to take into consideration.



Besides that sorry for the thread jack im subscribed.