Flat tappet camshaft question

[appelche]

Firstly:
I know I should ask Hughes.
I did.
But they can't deliver because they don't have any hydraulic flat tappet cores. And there's not much choice in stock.
Same with Howard's.
Maybe someone here has an idea?
I'm looking for a flat tappet cam.
I don't like the noise the roller cam makes in this engine.

I'm looking for a lot of torque in the lower to mid range.
Street use, no racing.
But of course I want to get the most out of the engine.
The engine is a 400/470, 3.915/6.35, 10.7:1 comp ratio.
TF 240 heads. Low deck dual plane intake and HP exhaust manifolds.
Vehicle is a 1966 Charger, ~ 3700 lbs, 4-speed
gear ratio 3.23 or 3.55 (freely selectable).

Maybe someone has a similar setup and an idea?

Thanks!

 

[Doorkicker]

I have a 66 too... built a 440... and put this cam in it. They make the same one for the 400.

I stroked it and then put 240's on and then popped this cam in... and then put 1.6 rockers in.

Granted, I'm going to be putting in a solid roller here shortly... but this is what worked for my stroker.

 

[GTX JOHN]

I have run the above .564 camshaft and
I have been very pleased with the results.

 

[451Mopar]

Do they have flat tappet solids in stock? My friend Paul is running a solid, I think over 250 @ 0.050 in his 470? stroker.
I still have the fairly large Hughes hydraulic cam sitting on the shelf that I bought from GTX John. I don't recall the specific size, but I think around 250 @ 0.050" intake duration.
Found the for sale post, 2023. The cam is the HEH-4650.
FOR SALE - Hughes Hydraulic Max Perf. HEH4650B/Lifters/Springs/Retainers for B Engines

 

[hunt2elk]

Get ahold of Dwanye Porter, he is a member here. PRHeads I believe is his username.

 

[69Bee]

Call Hunter from Cam Crafters in NC, PH# 828-681-5183. We needed an unavailable roller for a SBC and he was able to help us when no one else could. Not only that, but we also got the custom ground cam and shipped inside of a week.

 

[70rrclone]

I am running the cam in-between the 2 doorkicker posted. Stock stoke 440 9.84 compression. 240 heads, rpm manifold. Im happy with the results.

 

[threewood]

Do they have flat tappet solids in stock? My friend Paul is running a solid, I think over 250 @ 0.050 in his 470? stroker.
I still have the fairly large Hughes hydraulic cam sitting on the shelf that I bought from GTX John. I don't recall the specific size, but I think around 250 @ 0.050" intake duration.
Found the for sale post, 2023. The cam is the HEH-4650.
FOR SALE - Hughes Hydraulic Max Perf. HEH4650B/Lifters/Springs/Retainers for B Engines

I have the solid tappet equivalent from Hughes and it has plenty of power in my 440.

 

[Geoff 2]

I think the first cam would be better for low/midrange considering your are using a DP intake....& exh manifolds.

 

[appelche]

Thanks for your comments.
The suggested camshafts are for performance at higher revs.
I'm looking for a lot of torque at low and medium revs for a heavy 4-speed car for road use.
I don't need maximum horsepower.
The engine doesn't usually go above 5000 rpm.
But of course I want to get the most out of the engine.

The old Lunati voodoo, maybe a 703, would have been useful, but unfortunately Lunati camshafts are no longer available.
I drive a voodoo 702 in another car and am very happy with it.

 

[BSB67]

So you used a hydraulic roller and don’t like it because of the noise. Is that correct? Maybe different lifters would fix that. It should not be any noisier than a hydraulic flat tappet.

Which dual plane intake?

People report that the fast rate HFT cams, like those recommended above are noisy too. If I had to pick one of the XE-HL cam lobes from above it would be the 275 on a 112 LSA.

Maybe a custom cam ground with Comp Magnum lobes or the Crower 271.

As mentioned, contact Dwayne Porter.

 

[appelche]

The old roller cam from the engine was a Crane 689551.
It was loud and worked really well from 4000 rpm.
Good for the strip, not so good for the street.
I don't race with it anymore, so I'm rebuilding the engine for the street.
Less compression, less camshaft.
No 2618 pistons, but 4032.
The new intake manifold is a Weiand 8008 because of the height.
I'd like to install the small Mopar 10" air filter.
The Weiand works well for torque at lower revs in combination with the HP manifolds.

 

[appelche]

So you used a hydraulic roller and don’t like it because of the noise. Is that correct? Maybe different lifters would fix that. It should not be any noisier than a hydraulic flat tappet.

Which dual plane intake?

People report that the fast rate HFT cams, like those recommended above are noisy too. If I had to pick one of the XE-HL cam lobes from above it would be the 275 on a 112 LSA.

Maybe a custom cam ground with Comp Magnum lobes or the Crower 271.

As mentioned, contact Dwayne Porter.

Maybe the Crower 271 is a good option.
I 'll inquire about the availability at Crower.

 

[Rebelrouser]

So you used a hydraulic roller and don’t like it because of the noise. Is that correct? Maybe different lifters would fix that. It should not be any noisier than a hydraulic flat tappet.

Which dual plane intake?

People report that the fast rate HFT cams, like those recommended above are noisy too. If I had to pick one of the XE-HL cam lobes from above it would be the 275 on a 112 LSA.

Maybe a custom cam ground with Comp Magnum lobes or the Crower 271.

As mentioned, contact Dwayne Porter.

Done lots of hydraulic rollers in 440's with no noise. 1st you cannot run thick oil in the retro hydraulic lifters they are selling. 10w30 oil is what works best. With thick oil they do not operate correctly. 2nd if you are not using adjustable rocker arms you have to be very precise in selecting the push rod length to get the correct preload. And while some of the lifters I get have the oil and preload info with them many do not, even from the same company. I have started calling the lifter company when somebody gives me a brand with no instructions, not all lifters want the same preload.
I have been using Morel lifters on most of my street muscle car builds.

 

[gtxrt]

put a rpm performer intake on and pick up 30 HP.

 

[appelche]

I 'll definitely go for either the Crower 701 or the Howards 721941-12.
We'll see which one arrives faster.
There are currently problems with sourcing the blanks.
Thanks for all your comments.

 

[gtxrt]

I 'll definitely go for either the Crower 701 or the Howards 721941-12.
We'll see which one arrives faster.
There are currently problems with sourcing the blanks.
Thanks for all your comments.

neither one is good but the Howards is better than the Crower. too much spread on both between intake and exhaust plus on 112 LSA. something close to 224-230 110 LSA would be a torque street cam good to 5200 rpms .

 

[appelche]

Howards cam is my favorite.
I think (or i hope ) the 470 with 4-speed can work well with both camshafts.
Not so well with a 383, but with a 470 cui it should be fine.
I drive a Lunati voodoo 702 in a 496 cui / 727 in a street engine with dual plane and HP manifolds and the cam could be one size bigger.
So a 703, but unfortunately Lunati is history...

 

[Gunner1]

My 440 is a mild build fòr street. Speed Pro 6 pack pistons .017 down the hole, Stealth CNC Heads, RPM Air gap with 750 Holley. Cam is a 292 Isky mega. 292 adv, 242@050 500 lift 108 Lsa,4 deg advance. 2800 stall 3.73 rear with a locker. 3000 miles so far great torque right off the stop light. It’s a flat tappet hyd not too aggressive ramps. I like it.

 

[Geoff 2]

Good parts selection on your part [ pardon the pun! ]. They all work nicely togther.