505 Performance

[SilverXJ]

I have personally owned two sets of eagle rods in other motors. Both failed WAY before rated HP #'s. They are machined with substandard tolerances, from substandard material and the most expensive paper weights on the market.

My machinist also doesn't like Eagle rods. But... they are/were the only company that supplied rods for the 4.2/4.0

[gradon]

This is the first I've heard of eagles being ish on Jeep forums--maybe I need to go search the import forums to see their experiences. Regardless, I'd rather be using the forged eagles for a F/I stroker over the 4.0 or 4.2 rods.

[Plechtan]

This is the first I've heard of eagles being ish on Jeep forums--maybe I need to go search the import forums to see their experiences. Regardless, I'd rather be using the forged eagles for a F/I stroker over the 4.0 or 4.2 rods.

What's wrong with the stock rods? Six Pac and Turbo Tom ar both running stock rods without a problem. Six Pac has been running his drag jeep for 20 years without a rod failure.

[Biggrnjeep97]

This is the first I've heard of eagles being ish on Jeep forums--maybe I need to go search the import forums to see their experiences. Regardless, I'd rather be using the forged eagles for a F/I stroker over the 4.0 or 4.2 rods.

The import scene is where i have my bad experinces. 2 SRT4 motors later, i will never use eagle crap again. Although i will admit the honda guys seem to have ok luck with em, I have not.

What's wrong with the stock rods? Six Pac and Turbo Tom ar both running stock rods without a problem. Six Pac has been running his drag jeep for 20 years without a rod failure.

This is a very valid point. Lest we mention Yj_and_corey with his 400hp 4.6l.... shot peened 4.0 rods are very strong.
-Will

[dwg86]

505 has 4340 stroker cranks on thier web site. One standard crank and one 4.060 stroke crank. No prices yet. They also have 3 different styles of connecting rods.

[Plechtan]

These might be the Scat cranks that they will be introducing soon. They will probably be available form Summit cheaper. Since Scat will only be making stock stroke, you will have to offset grind and use special rods to get a 4" stroke.

Perhaps this is where the comment in the insane inline article came from that they were using a forged crank.

[dwg86]

Yeah, I'm curious to see what the price is going to be. I don't think I will need one with the power that I'm building. But if you are building a forced induction engine, these cranks may be the way to go. It's cool to see all the parts starting to show up for the stroked Jeep inline. Now if we could only get a drop in beehive spring....

[Plechtan]

Yeah, I'm curious to see what the price is going to be. I don't think I will need one with the power that I'm building. But if you are building a forced induction engine, these cranks may be the way to go. It's cool to see all the parts starting to show up for the stroked Jeep inline. Now if we could only get a drop in beehive spring....

The price for the standard stroke is suspose to be around $500.00 If you read the lastest installament of the insane Inline article, yo will notice that they did not run the motor over 5,200 rpm. The 4cw has the worst harmonics, so this crank should be targeted at applications below 5,500 rpm.

Keeping the motor at lower RPM reduces the need for a very high performance valve train, i do aggree that the springs should be replaced with ones that support more lift. Beehives would be nice.

I believe turbo builds will become more common, but then we will start to have drivetrain issues, I don't know how well a dana 35 will take 450 hp or more. So it's nice that 505 built a (almost) 700 hp engine, but what do you put it in? how about a SRT6 Grand Cherokee?

[SilverXJ]

I wouldn't see the purpose of putting such a polished stroker into a Grand Cherokee (ZJ or WJ) considering they had stock V8 options, which have a bunch of more aftermarket options. Sure you could do it just to do it, and maybe you have a certain attachment to that particular vehicle or engine. But at the dollar level I see it as too much to put into the I6 when a V8 can be had.

I'd say it would be more suited to a XJ, TJ, YJ and other vehicles where the I6 was the larger engine option. The D35 won't hold up long to that much power, but axle swaps are common and even the axles in the ZJ and WJ are pretty sad. They never had the 8.25 and offered that horrific aluminum center section D44 (housing flex). Think Ford 8.8. There are also several companies that offer "frail rail" strengthening for the XJ and other reinforcements.

[dwg86]

I emailed 505 performance about thier "5.0 Rods". I wanted some information about the rods to see if they would work with with my next planned stroker.
Here is my question... What are the dimensions of the Jeep 5.0 rods (rod length, big end width, wrist pin and big end diameter)? What bearing do you use for the big end?

505 performance reply... "The 5.0 rods is a custom rod 6.125 length bearing sizes and pin sizes will not be given out unless purchasing a kit for replacement parts."

So I will NOT be buying any parts from them. I don't understand a company that does business that way. I was asking information to see if parts that they are selling will fit my application. I'm not going to buy parts and HOPE they will work with what I am building. It's TOP SECRET SHHHHH!!! WHAT A JOKE! Well, they lost a sell, if the rods would have worked.

[Plechtan]

Rods useed on 5.0L motors are generally a 2" big end bearing, and geneally use chevy inserts ( 6cyl or sbc). Some people have used import rods( homda i think) with a small bearing diameter, however the rods seem to be short. On my motor i used custom rods with a 6.2" length, but the rods were about $200.00 each.

As for the 505 stuff, maybe sombody here has purchase a kit and can give us some details.

[dwg86]

One of the factors in choosing a rod for offset grinding the 258 crank, is the width. If they are selling a rod for thier "5.0 stroker" engine using the new 4340 crank and welding the journals, that would not work for what I am trying to do (I will not weld a cast crank). If you have a steel crank, you can weld the journals and use any aftermarket rod you want to. I guess they don't want to sell thier "super secret" parts unless you are replacing ones you already have???? Thats OK, my money spends anywhere...It just won't be at 505 performance.

[gradon]

I've only read the 2nd or 3rd JP article online, so I forget what exact parts they used. They didn't use the roller cam on the build, which I find interesting(maybe they weren't willing to sacrifice one in the testing?). I guess they also didn't use the eagles since the question is being asked. Anyhow my brother bought the eagle 6.150"s, nitrated, ross custom pistons w/ 34cc dishes and ceramic coated tops, nitrated skirts, 2.02"in and 1.6"ex ferrea valves, also ceramic coated, and their "most agressive" profile rollercam kit(nitrated cam, lifters, pushrods, timing set). AFAIK they didn't weld any journals, just offset ground a 12-wt crank to 4.060". Anyhow, 505 has good performance parts at fair market prices. Time will tell the duration of the cam--that's the only part I'm curious about.

[SilverXJ]

profile rollercam kit(nitrated cam, lifters, pushrods, timing set).

Did they say anything about some kind of Teflon coating on the cam? Someone mentioned something about it being teflon coated on NAXJA IIRC.

Time will tell the duration of the cam--that's the only part I'm curious about.

You mean the life expectancy? I would like to see what that is as well.

[gradon]

Yeah, pun was intended(not the actual *). I don't see any teflon on Nick's roller cam. The coating on federal mogul/sealed power h802/825cps' skirts are teflon-like (h=hyperteutic, c=coated skirts, just in case some people don't know).