440 Parts Wanted

[Boz]

I am looking for some aftermarket Valve covers. They don't have to be perfect just want to dress it up some. A Performer440 Intake and a 440 mopar Purple Cam. I live in Iowa. Thanks

 

[69 Runner]

All Mopar Performance cams are purple. What specs are you looking for?

 

[Boz]

Sorry new to Mopars and thats what a guy told me to get. I am looking for one that will work good in a driver but want it to have a good rumble. I am going to be putting a Performer intake on it a 750 Edlebrock and mill the heads some. Thanks Boz

 

[74Satellite]

A good rumble or lope? A rumble can be achieve by manipulating the exhaust system....a lope on the other hand has to do with the CAM....A lot of thought needs to go into selection of a CAM and its "sister" components like heads, intake and carb....any ole combination wont necessarily work together.

A good start would be to get an Edelbrock package that is designed to work together, either the Performer intake, cam, heads, and recommended carb or the Performer RPM series of the same ilk...

Also depending on the lift you choose for the cam, you will then have to consider your valve springs, pushrod length (Especially if you deck your heads), etc etc...

Do some research before dropping the cash on a cam....

Not trying to discourage you at all, just sayin that in a engine, everying has to be working together cohesively or you can actually slow or bog the car down.

 

[Boz]

I am wanting it to lope. I don't have a lot of money right now to drop in to it is why I have been getting used parts. Might have to hold off on it for a while. Thanks Boz

 

[69 Runner]

Boz, why do you want to cut the heads???????????

 

[Boz]

I was told the 75 440 doesn't have much compression and would be a dog. I am just wanting a decent motor that sounds good and runs decent. If I can replace the cam,Intake and carb and have a decent runner I would do that also. I am completely new to anything with mopars. Thanks for all your guy's help.

 

[74Satellite]

Slap some Flowmaster 40 series mufflers or even some Hooker Aerochambers on that bad boy with a duel exhaust and H pipe and romp on the skinny peddle

 

[69 Runner]

Yeah, a 75 440 is gonna be kind of lacking in the compression department. However, I doubt you'll be able to raise your compression to an "acceptable level" by cutting the head. Example. Changing from the composit headgasket to the steel shim one (a gain of about .020") you'll only gain about a half point of compression. You start cutting the heads that much you'll need shorter pushrods and will have to have the intake side of the head cut as well. Otherwise the intake won't fit.

The GOOD thing is, 440s are not short of torque no matter what. SO what I would recommend is, change the headgaskets if the composite ones. Blueprint spec for a 906 head's chamber is 79cc. So assuming your heads are gonna be in the 88-92cc range you might consider shaving them to around 80cc (you'll need the intake side cut as well if you do this). But if money is tight (and when isn't it?) just have your heads freshened. Then for some bump maybe use a .509 cam (and springs). Very popular and kinda noisy. Obviously you'll need headers with that cam, but you don't need big tubes. I wouldn't go bigger than 2" tops.

Or do like 74Satellite said and go with the Performer package. But with that low compression motor I wouldn't use an aluminum head (not without a really small chamber anyway)

any of this help?

 

[69 Runner]

from NHRA

http://74.125.95.132/search?q=cache...440&hl=en&ct=clnk&cd=1&gl=us&client=firefox-a

 

[Boz]

Are headers a very tight fit on these? That sounds good will prob just redo the heads and put headers on. Still need to find a 509 Cam, Performer Intake and Valve covers.

 

[69 Runner]

Cam, lifters, and springs I'd buy new. Probably about $225-250 for all of it. Use a double roller timing set. Make sure if you run this cam you get the ONE BOLT timing set. Also, this cam won't make power till about 2600, so be aware of that.

 

[DodgeFreak]

will a .509 (gussing lift??) be to big for a low comp. motor, I havea comp cam that has around .509 in and .5XX something (can't remember exact spec.) and it wants you to have 10-11.5:1 Comp. thats why i didn't install it in my 78. which has 8.5:1 or around there.

 

[daredevil]

lot of compression or a lot of stall. The reason this cam doesnt work well without a lot of compression is because the overlap bleeds off cylinder pressure

 

[68 Satellite]

I agree.... buy a new cam and lifters

 

[thebankerstoy]

Hi Boz,

You also didn't mention what type of rear end and gear ratio you're running. but I also think you will have trouble making a .509 cam work with the low 8.2 or so compression ratio that your 1975 440 has and if your running a non Sure-Grip rear end with something like a 2.76 to 3.23 gear ratio, along with a stock automatic transmission and a stock torque converter, that cam is gonna be REALLY unhappy! :black_eye: One other thing to consider if you live in a state like Arizona where I live, is that you will have pains in your *** getting it to pass state required emissions!

If you're running a stock automatic transmission with a stock spec torque converter and a gear ration of 2.76 to 3.23 and your 440 is basically stock specs internally, here are the Mopar Performance parts that I would recommend for your application. You could also add a set of headers and a good 2.5" dual exhaust system and I think that you would be a very happy camper with this set-up on such a mild street engine.

CAUTION!!!! Since this is a hydraulic camshaft, you MUST use a GOOD break-in cam lube along with an oil, or an oil additive with a high quality ZDDP (zinc) additive!!! If you don't, you WILL destroy camshaft lobes off of your brand new camshaft at fire-up!!! Even after you break the new cam in, you MUST still use an oil, or oil additive at ALL TIMES due to the fact that almost ALL of the new oils that are on the shelf these days have an API rating of "SM" and there is NO zinc in these oils to keep your hydraulic cam alive!!! Newer vehicles use roller style cams, so they don't need ZDDP to survive. With that said, here's my Mopar Performance part recomendations.

Part #P4529270, camshaft package, hydraulic, .228/.241 duration, .450/.458 lift, rpm range is from idle to 5800, this cam is basically the same as used in the 440 Six Pax cars. This cam package also contains matching flat tappet lifters and cam lube.

Part #P3690933, valve springs, single spring with an internal dampner, recommended with the above camshaft.

Part #P5249268, double roller timing chain and sprockets, 1 bolt mount that works with the above listed camshaft.

Part #P4876769, front timing chain cover gasket

Part #P4876280, front timing chain cover seal

Part #4349816, Chrome timing chain cover, includes gasket and seal listed above. This chrome cover isn't a must have, but if your stock cover is beat up and or rusty, here ya go. If not, just buy the gasket and seal listed above and you're all set.

Part #P4452795, chrome bolt package to go with the chrome front timing chain cover.

Part #5007614, black wrinkle finish cast aluminum valve covers

Part #4452091, valve cover gaskets, heavy duty race style, rubber reinforced cork

Just .02 worth from a guy who's been around the block a few times with these big block Mopar muscle cars.

Richard