We just had our first set of custom aluminum rods made for a customers 2.2 we are building. These rods weigh well under 400 grams and come with L19 hardware. We are going to make these rods a stock item so if anyone else is interested let us know. We also have custom 90mm bore pistons coming as well.

 

they look stout and light

 

wow i would love these in my car who ever is getting these is lucky.....great job apm they look sick

 

comparison to stock with Specs, prices and related data is what I want damn it.... I kid. They do look awesome, but I hope you do post all details.

Thanks.

 

Da*n those are some nice pieces. Good job.

 

Stock rod weighs 590 grams, these Aluminum rods weigh 390 grams! They come with ARP L19 rod bolts . The 4G63 version of this rod handles over 1000 hp so unless you are making that much i would not worry about these. I will post up in the vendor announcements the pricing or you can PM us we have to play by the rules sorry. We are also going to do a billet steel rod for those of you nervous about aluminum.

 

 

Can these rods be used with a stroker crank? Say the BC 2.5 or Cosworth 2.2? Do you provide the bearings for the crank journal or do you retain the stock bearings?

Do you have to use a special piston pin for these rods?

 

Not for sure if you could clearance the block enough but i doubt it. Rods are meant for a stock size rod bearing just need to be drilled. They are available at an extra charge. The rod ratio for the 2.5 stroker is terrible at 1.46 i would think max rpm would be around 7500 or less. The 2.2 stroker is good to about 8000 rpm max so i would not suggest either with aluminum rods. We do sell a 2.2 non stroked 4B11. We sleeve the block and bore it to 90mm! so you keep your stock rod ratio but get the extra displacement.

 

Thanks for all the info!

What kind of pistons do you use in your non stroked 4b11?

 

what oil temp/water temp can be sustained using these rods?
how much do they stretch over time and under full load?
what do you do to ensure the bearing doesnt spin under high load and rpm, since aluminum will stretch?

just wondering because with my experience with the bseries and kseries.....

 

We have our own Arias pistons. Standard operating temps of the 4G63 are fine. Generally with an aluminum rod i set the pistons in the bore .010 for rod growth. Rod cap has a pin to capture the bearing. So far i have seen 15,000 miles on this type of aluminum rod without any issues.

 

pins that lock the bearings in place...

 

sweet, just the info i needed... my buddys 900hp+ civic runs aluminum rods, but not sure if they were suitable for the street althou we also didnt have any real world feedback...
thanks for the post and clarifying a few things...

is the .010 built into the rod or in a custom piston?

 

Built into the rod that way you can any brand piston you want.