Hydraulic Cam suggestions

[JG71B]

"Cheaply" rebuilding the 400 I have in the 71 with kb240's .030 over, block squared, 440 source 383/400 rods, (their heads next year), no more than a 25-2800 converter. 3.55's. Mostly a driver so far, Id' like to beat the **** out of it on occasion at time trials/ eliminations one or two nights every few weeks and would like to make at least 1hp per cube. Stock 346 heads for now, I have headers but want to use HP manifolds for ease, 440 source heads next year. The smaller CC of those heads are being considered and would like to keep it under 9.5:1 with the 440 source heads. I get the stock heads will be considerably lower compression and flow less. Is there a cam that I can max out the stock heads with the lower CR and still make power with the higher CR and flowing 440source heads with said cam?

 

[4mulas]

You should change the title of this to ‘cam suggestions’ and you’ll get 50-60 different replies without one consensus, but it may help edjumacate yah! Good luck with your goal and build

 

[JG71B]

You should change the title of this to ‘cam suggestions’ and you’ll get 50-60 different replies without one consensus, but it may help edjumacate yah! Good luck with your goal and build

I see what ya did there.....fixed!

 

[496 polara]

For an off the shelf cam the comp xe 268 or 274 would work.I might lean toward the 268 if mostly street.

 

[Cheapsunglasses]

If you can get a Lunati 703 voodoo , that’s what I put in my 440 with stealth heads, hooker headers, and a torker intake. It’s a hydraulic flat tappet, which I know scares people now days, but make sure the lifters spin freely, and follow the proper break in , mine did and continues to be fine.

Anyway, The cam is the best of both worlds, I drive my car almost everyday and been on a few road trips, and it’s super streetable, cruises nicely, handles traffic well…..but when it’s time to “party” it’s pretty wild, and it has a really good sound.

• Lift: .494''/.513''
• Duration: 271 Deg / 279 Deg
• LSA: 110 Deg
• RPM Range: 1800-6200

 

[496 polara]

All lunati cams are discontinued.

 

[Cheapsunglasses]

Really ? That sucks, this is a really good cam

 

[threewood]

All lunati cams are discontinued.

When did this happen???? What happened?

 

[451Mopar]

Budget wise, If the 346 heads have the original valve springs then you might want to get a set of 440 source valve springs they use on the stealth heads for $50 a set.
Using a mild cam around 215 to 220 @ 0.050" makes things easier if the car is not setup with a high stall converter, also nicer if the car is daily driven.
Bigger cams need more distributor and carb tuning, and like higher RPMs.
For a driver, the Hughes Engines HUG SEH1620BL-12 is what I have with 1.6:1 rockers. This would be more low end torque and midrange.

Sounds like you want something a bit larger, and the HUG SEH2226BL-10 "6-Pack cam"
https://www.hughesengines.com/Index...b3cgRGVjayk=&level1=Q2Ftc2hhZnQ=&partid=32342
is likely more what your looking for. I would upgrade to the Hughes valve springs with this cam.

 

[496 polara]

Com

When did this happen???? What happened?

Comp owns lunati now and they discontinued all the camshafts under their name. I think Lunati is going to be cranks and rotating assemblies going forward. That is my understanding anyway.

 

[Cheapsunglasses]

Com

Comp owns lunati now and they discontinued all the camshafts under their name. I think Lunati is going to be cranks and rotating assemblies going forward. That is my understanding anyway.

That really freaking sucks

 

[PRHeads]

With stock (no porting) heads and a small Hyd cam you’re not going to make 1hp/ci.
Add in the exhaust manifolds?……”Fagetaboutit”

 

[JG71B]

With stock (no porting) heads and a small Hyd cam you’re not going to make 1hp/ci.
Add in the exhaust manifolds?……”Fagetaboutit”

Already mentioned aluminum heads for next year, shouldn't be an issue

 

[toolmanmike]

Do your homework on Comp Cams. They sure are a popular brand but they have had a lot of issues with their cams and lifters.

 

[72redbird]

You should call the guys at Bullet Cams and run it past them.

 

[451Mopar]

Hughes still offers the "No flat can guarantee" if you use their springs and break-in oil:
https://www.hughesengines.com/TechArticles/ourcamsareguaranteednottogoflat.php
I also recommend their lifter bore burnishing ball to make sure the lifter bores are round and sized correctly:
https://www.hughesengines.com/Index...rcw==&level1=TGlmdGVyIEJ1cm5pc2hpbmcgQmFsbA==