I went with carrillo. They are the bees-knees here...

 

Well Im pretty sure he said 300m which are not the eagle look alikes..

I would choose carillo because without even knowing ill bet they are lighter for sure and just as strong.. easier for us to give advice if we know your goals with the car and HP / RPM etc..

Mike

 

Ya i should have been more descriptive. I'm building the motor for 600+ WHP 94 octane ( i can't get E85). Engine is being matched to a 6262 ...etc. But ya i think i'm going to go with the Carillos they seem to have an excellent rep.

 

i went with map ultimate billet rods,they are heavy 652g,but love the idea of running early 4g63 wider bearings

 

whats the size difference between 7bolt and 6 bolt bearings ?

 

Rods are as strong as the crank they rotate on.

 

manley...i have built alot of motors and i have never had a problem with manley rods in anything i have ever build dom/import

 

I am in the same quest today.
Which of these two should I buy?
Manley 300m or Carrillo???

Specs of my Evo IX????

Engine mods:
2.0lt ,
K1 crank,
Rods ????????? (I will use ARP custom age 625+ rod bolts and I'll get rid the OEM... I have them anyway)
JE BR specs pistons,
Cosworth head,
Tomei 280 cams,
4 channel Sparktech COP,
Motec M800 ECU,
PT6765 turbo kit,
HKS Kansai manifold with Q45 TB,
HKS 4" IC
ACL Race series bearings
etc,etc.
Shep trans 5 speed
Shep transfer w/ LSD,
Shep RS from EvoIX diff w/ cusco LSD,
DSS axles,
AMS push style triple cerametallic clutch kit.

 

Carrillo 567 gram. 1000+ whp
Manley 685 gram. 1300+ whp
Cosworth 548 gram. 1000+ whp

Cosworth and Carrillo are straight H beal.
Manley is I beam.

 

You'd be well advised to do a little more reading on aluminium rods in general, and Groden 4g63 rods in specific. Take a look at the English Racing photos of a Groden rod that failed at the threads, then come back and discuss...

 

Good info on the rods, but those power figures don't mean much. A 2000whp 5.0L V8 is approximately the same specific output as a 800whp 2.0L 4-cyl.

 

These power advertisements is for the Evo rod kits.
So what would you choose?
Carrillo or Cos?

 

I know of a recent instance whereby a Cosworth EVO rod snapped in half unexpectedly, so I find no reason to consider those. Actually, I'm not sure that I would consider any very lightweight H-beam rod for a high hp application where someone is going to take it out and beat it to the ragged edge with >400+whp/L, but that's just me. If I had to choose between Cosworth and Carrillo, I definitely choose Carrillo. I know who makes Carrillo's rods. I don't know who makes Cosworth's rods.

 

From what I understand, you should also consider the fact that many "American" rods don't use North American steel. They use less expensive material from South American foundries. And 548 grams seems light for a rod that's supposed to handle 1000whp. That's a commentary on the weight, not on the company. Just my 2¢.

 

Manley's = Heavy

http://www.manleyperformance.com/sc/...g63_rods.shtml

carrillo = light weight steel

http://www.carrilloind.com/LinkClick...vg%3d&tabid=60

GRP = Light weight Alum

http://www.grpconrods.com/