Here goes nothing aka 505 build

[496 polara]

Should have this on the Dyno in the next week or two.Motor is assembled and ready to go. Going in my 72 Duster with a 727 and 3.55 gears.Primarily street driven and will see the track for disappointment (lol) and some friendly bragging among friends.

75 model 440 block
4.25 stroke crank
Rods and Pistons from 440 source coming in at 10.0-1
Hyd roller comp cam spec'd by Dwayne Porter coming in at 247*/253* @.050 with .59X I and .58X E (Cam card at builders) on a 110
Trick Flow 240 heads (out of the box and look great per the builder)
Harland Sharp 1.5 rockers
MP M1 single plane
Builders 950 on the Dyno (I have a 750hp and a 1000hp to choose from once I see results).

I have no HP/TQ goals or even expectations. I asked him to build it like it was his and with his excellent machine work and decent parts the horses will fall where they will. Only thing I will say is 600hp has a nice ring to it and I would expect TQ to be over 600. If not I will survive as it should be a handful in my Duster.

 

[RustyRatRod]

Hydraulic. lol Seriously though, that oughtta run really strong.

 

[mopowers]

I'll be following this one for sure. What lifters will you be using?

 

[496 polara]

Hydraulic. lol Seriously though, that oughtta run really strong.

My heart wanted solid roller but I didn't want the associated maintenance down the road. I am not a youngun and not skilled enough to do it myself.If I were younger and my mechanic wasn't semi retired ......what could have been.Low maintenance is the order of the day.

I'll be following this one for sure. What lifters will you be using?

Per Dwayne's recommendation the Comp Evolution. Builder commented they looked good.

 

[66Valiant528]

Dwayne knows his ****. You can't go wrong with his recommendation. That said, solid roller all day. Good luck!

 

[RustyRatRod]

My heart wanted solid roller but I didn't want the associated maintenance down the road. I am not a youngun and not skilled enough to do it myself.If I were younger and my mechanic wasn't semi retired ......what could have been.Low maintenance is the order of the day.

Per Dwayne's recommendation the Comp Evolution. Builder commented they looked good.

I can completely understand. Even though adjustment with good quality parts might be as much as two years down the road, it still has to be done.

 

[496 polara]

My thoughts to anyone who would listen were football field torque and HP falls where it may. Didn't know if I would ever be able to get this together.It was not without a hurdle or two as well.

Five years ago I bought a used set of cnc ported Edelbrock heads and have been saving them for this day. They had a failure and had been repaired per the seller. Like a dummy I never had them checked out and they need major work that could not be completed in time(one chamber needs to be welded up and redone).I have a set of cnc 440 source heads I could use had I not put them on the 440 currently in my Duster. So $3500 later here are the trick flow heads in their wedding day dress.

I got this crank second hand over 10 years ago and had Dan Costello check it out for me. He passed in 2014 and it has been sitting in a box at the foot of my bed ever since. It was an older 440 source crank that was .020 on the mains and rods. Builder said it was good to run as is. Maybe a little thicker oil but he said run it.

 

[PRH]

600hp?!?!
Uh oh……. I thought you said 500hp.

 

[496 polara]

600hp?!?!
Uh oh……. I thought you said 500hp.

At 4500 rpm,sure.

 

[PRH]

Is it going to be tested with 2” headers?


btw, that intake manifold has made 600hp before.

 

[NC Engine Builder]

Sounds like a spicy "station wagon" mill!

 

[496 polara]

Yes 2" TTi headers. Same header that is in use in the car.

I hope it makes it again. I don't know that it will be tested with spacers but I have a 1 inch open and a 1 inch super sucker I ran many years ago on my 465.

 

[496 polara]

Sounds like a spicy "station wagon" mill!

Well if the Duster can't handle it I can always put it in the 72 Newport 4dr.

 

[496 polara]

Make or break time. Dyno in the morning.

 

[jimjimjimmy]

Make or break time. Dyno in the morning.

Good Luck .

 

[Kern Dog]

Funny thing....I read this thread a few days back, then YOUR name came up in conversation today....

I'll be following this one for sure. What lifters will you be using?

Per Dwayne's recommendation the Comp Evolution. Builder commented they looked good.

The man is great. He has to be the most friendly and knowledgeable car guy that I've spoke to. He never tries to rush the people off the phone or force a sale. I ordered a hydraulic roller from him today and he mentioned this thread. Your cam is bigger than mine and you have better flowing heads so I'd be surprised to see your come in below 600 HP. These engines make torque easy so 600 ft/lbs is probably a given too.
Those lifters have developed a good name for themselves.

Make or break time. Dyno in the morning.

Make sure to post up the sheet or at least report on the results!
Best of luck.

 

[fishmens67]

Should easily eclipse 600 hp.

 

[Jeremiah (jd)]

I'm interested to hear more about the comp evo lifters. I'd like to try a set. What are the valve spring specs?

 

[Kern Dog]

The Evolution lifters use a hydraulic cartridge inside to address the hydraulic needs and functions. The story I heard was that Comp used a production "cartridge" used in modern engines then built the lifter bodies to fit around it. This means that they have OEM durability and even if that fails, the rest of the lifter can be saved while replacing the cartridges separately. They are not cheap but are within the price range of some other brands.
If I am wrong on that, I don't mind being set straight so I know what is correct.

 

[496 polara]

I'm interested to hear more about the comp evo lifters. I'd like to try a set. What are the valve spring specs?

Valve springs came on the heads. They have a head with springs for the hyd roller cams. I ordered them and had them shipped to the builder. I have only seen the heads in pics thus far.

 

[496 polara]

505c.i. mopar
10.0-1
4.35×4.25
Trick Flow heads
247/253 @ .050 hyd roller 110 lobe sep
Single plane intake
950 holley
2" headers

617hp @ 5400
652tq @ 4600

Nice truck motor

 

[496 polara]

More info/details posted later. Just a quick text the builder sent me this morning.

 

[PRH]

btw, that intake manifold has made 600hp before.

Looks like the intake remembered how to make it past 600.

 

[Kern Dog]

That is amazing. I'm surprised at how low the HP peak is. 5400 rpms?
I would have expected those heads to flow well way past 6000, maybe 6500. It will be great to see how gradual or steep the power drops off from 5500 to 6000. It might be protocol to only spin an engine to to it's peak and barely past it. I'd think that an engine that makes that much power at that rpm will likely last longer than one that needs to run to 6500 to reach it's power peak.

 

[496 polara]

I am intersted to see how well it hangs on after peak. Dump truck torque and that is what I asked for.

Still don't have all the particulars.Builder did say he didn't have time to do much testing of spacers,etc due to the dyno operator wanting to get it in and out.