Hello all.
I'm looking to build up a 1968 440 hp for my 68 coronet.

The car will have 3.23 or 3.55 gears, 727 trans and stock converter.

I had a pair of 906 heads completely worked over. Full port work, 2.14 Manley intake valves, 1.81 Manley exhaust valves, good valve job, decked to square.
They flowed in the 290 range on the intake but were done at around .525 lift.

Need to use a low intake to clear the stock hood.

I have a set of isky iron adjustable rocker arms and plan to have them bushed and blueprinted.

The engine runs fine at present and is completely stock. Supposedly, it was rebuilt 3000 or so miles ago.

I'll be removing the heads to determine how far the pistons are in the bore. Hopefully, not way down and hopefully the bores look fresh.

I was going to have a hydraulic roller ground but I'm having second thoughs.

Now, I'm considering a flat tappet solid cam. Maybe a lunati.

Any thoughts?

"Any thoughts?"

Yeah, keep it small. You don't have the gear or converter to run that much more than stock... and might even want to stick with a hydraulic flat tappet for simplicity and low maintenance (and I don't even LIKE hydraulic cams).

Absolutely on not installing a cam that's too big.

Adjusting the lash once a year doesn't bother me.

I suppose I could call cam motion and see about having one ground.

I can recommend having Dwayne Porter for specing & sourcing a custom COMP grind for you:

Porter Racing Heads
57 Commerce Ave # 2, South Burlington, VT 05403
(802) 951-1955

Just my , naturally.

The MP 284-528 would love that setup. I don't know if they go flat in a hurry nowadays though.

Sheldon

You might do a compression check before you tear it down to get some idea of how much cranking compression you have. Your compression may have a big influence on how much cam you can throw at it. Unless you are considering new pistons and the like to increase the cyl pressure.

I agree 100% with this. Dwayne speced and made my solid flat tappet cam I run in the eng thats in my 63 now and he did a great job. He will not steer you wrong and he will tell you how you should break in the flat tappet cam. Mine has been together for over 4 years as I use the Valvoline VR1 racing oil and add a bottle of the zinc additive at each oil change. He has been doing cams for many years and will help you get a cam just right for your combo. Good luck , Ron

I wouldn't go any larger than the Mopar .528 solid and I might not even go that big with your combo.

Thanks for the replies guys.

I'll call and talk to porter Monday.

What's a good intake that will clear a stock coronet hood?
I was thinking edelbrock performer.

Holley Street Dominator.

Sheldon

First, last and only choice. Port match and off you go!

A solid that works really well besides the 284/528 mopar is a comp xs274S

528 flat tappet idled like a pup on mine.
pulled good even though I only had flat tops 10.1 compression.
I would use a holley street dominator intake with the 528.
I used the M1 open and it had good pull up top.
Low to mid twelves and drove it most anywhere. But the car was relatively light at 3400 lbs back then.

I think a small solid would be perfect. I think that either of the small Voodoo cams would be good. Pick smaller one if your compression ratio is low. Pick the larger one if compression is higher, and consider having it ground on a 112° LSA.

I'm building a similar 440 Six Pack engine/trans combo for my wife's 1971 R/T Challenger.
I want it to be a very street friendly driver for my wife to enjoy.

The engine I'm using is a 1966 440 that will have the bottom end gone through and have around 10-1 compression.
Heads are the original freshend 516's with larger exhaust valves.

Trans is a fresh, slightly beefed up 727 and I plan to use a very close to stock converter.
Rear gear will either be 3.23 or 3.55.

The engine is currently running/driving and has the MP .528 solid cam with 4 speed and 3.73 gear but I don't plan on using the cam again.
The idle sounds nice and the drivability is good for me with the 4 speed.
Not sure if the engine is tired or the it's the cam but it has always had low vacuum.

I'm strongly considering a milder hydraulic Voodoo cam from Lunati
http://www.lunatipower.com/Product.aspx?id=2336

I want a smoother idle and better low end and mid range power for cruising.

I don't expect the engine to get over 5700 rpm's.


Since you got better flowing heads you might consider the next step bigger Lunati Voodoo cam. I've heard good reviews for this cam.
https://www.lunatipower.com/Product.aspx?id=2337&gid=362

For intakes you will see the oldie but goody street single planes sit lower than the great Performer RPM. Holley SD is still fantastic and avail new- the original Torker is cheap use- not available new. The Torker 2 is available new but I dont know how the height compares to its predecessor and the Holley.

Another vote for the MP .528 mechanical. Great street friendly cam and makes outstanding torque.Dave

It wouldn't hurt to consider either the Edelbrock performer, or a stock steel intake. Search for dyno comparisons and see what pops up. I bet it might turn up some interesting numbers. I ran the stock intake on a 69 Charger RT deep into the 13s with nothing but headers and slicks and a few tricks.

The MP .528 is a good cam and the only thing I can say bad about it is that if you want a lumpy idle then its not the .528. But that really dont matter when performance is what you want. I still remember my buddy was mad at me because my old 383 with the older MP .484 cam idled with much more rump rump then his 440 did with the .528 cam. And that was his only complaint as his car ran great with the .528. But he was one of them guys who really wanted a radical sounding idle to his car. I still laugh about it to myself today. And I agree the Holley Street Dominator is a very good intake as I used one on my old 440 and it worked very good on it and its a low sitting intake that will fit under just about any hood. Ron

Another vote to call Dwayne Porter. Do it once , do it right.