Looking at a 440...how much horsepower?

Old Mar 26, 2012 | 10:50 PM
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Looking at a 440...how much horsepower?

I'm looking at buying this 440...what kind of power should I expect? Would it be good for the street? Thanks for any info provoided...


The engine is a 440, 30 over Big Block Dodge. Forged TRW 10.75:1 pistons, factory crankshaft & rods, Stage V Chrysler cylinder heads, Engle Hyd camshaft (.517 lift, 282 duration, 108 lobe center), Edelbrock Torker intake with a Holley 830cfm carb.
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Old Mar 27, 2012 | 05:47 AM
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J -

If the motor was built right (proper balancing, etc), you're looking at over 500 HP at the flywheel.

The only issues would be the cam. Vacuum might be low enough that a vac pump might be required for the power booster and since I'm not familiar with that cam, you'll have the match the stall on the torque converter (if you're using an automatic) and have enough gearing in the rear to keep you in a useable power band.

Also, knowing what size/weight car is important - it's going into factors in.

Archer

Last edited by Archer; Mar 27, 2012 at 08:42 AM.
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Old Mar 27, 2012 | 08:38 AM
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The car is a 68 Charger with a 4 speed manual trans and 4.56 rear end. Thanks much for the info.
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Old Mar 27, 2012 | 08:44 AM
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J -

Sounds like fun. Hope you don't plan on too much highway driving... ouch (the 4.56 gears)

Archer
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Old Mar 27, 2012 | 09:06 AM
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Thanks Archer,
With the info provided what engine upgrade would you consider to get 600-650 hp? The 33" mickey's help with the 4.56's somewhat. Justen
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Old Mar 27, 2012 | 09:43 AM
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J -

Thought you initially said "street"?

Assuming you're talking about a std 440 build (no fuel injection or computer stuff, etc). The cam is going to have to go up and possibly the compression.

Is the crank forged or cast? Anything done to the rods?

If you have the old style Torker with straight runners, you might want to replace that with something with curved runners, like the Victor manifold. It give better flow at higher rpm.

What type of ignition are you using?

You also didn't mention exhaust. What size headers and pipes do you have?

Sorry, with the engines I've built, 600 HP really leaves the street-able territory and there are guys here who race, who might be able to help more with race stuff.

One thing, even with the 33" M/Ts, you might want to plug some numbers into an rpm/gear/tire size calculator to see what you're actually getting.

People do run 600HP on the street, but with an older style engine, in my experience, while impressive, it can get old really fast.

Archer
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Old Mar 27, 2012 | 09:53 AM
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I guess I'm just asking what the next upgrade would be...perhaps I should just leave it as is for street application. Anyhow, here is the info I have on the motor and exhaust. Thanks again.

The engine is a 440, 30 over Big Block Dodge. Forged TRW 10.75:1 pistons, factory crankshaft & rods, Stage V Chrysler cylinder heads, Engle Hyd camshaft (.517 lift, 282 duration, 108 lobe center), Edelbrock Torker intake with a Holley 830cfm carb. MSD 6 al ignition box, MSD billet distributor and spark plug wires. The exhaust system consists of a 1 & 7/8 Hooker Super Comp headers, 3" tubing and 40 series Flowmaster mufflers that were all coated by Jet Hot.
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Old Mar 27, 2012 | 11:19 AM
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Is the motor in the car or one that you want to swap in? If the motor is in running condition now, I would suggest throwing it in and running it the way it is. You may like it, if not, it'll give you some time to save up some coin to upgrade it even more.
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Old Mar 27, 2012 | 11:35 AM
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If it was mine I would put a set of aftermarket rods in it. With 4.56 gears You will be turning some high RPM's Any rev limiter ?
Change to a 3.55 or 3.91 gear for the street If you want the 4.56 consider a 5 speed trans conversion

Last edited by TVLynn; Mar 27, 2012 at 11:37 AM.
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Old Mar 27, 2012 | 12:16 PM
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I will try it out as it sits now. I was hoping the 33" tires would offset the gears a bit...will know here within a week! No rev limiter that I am aware of. The tranny is an A8333 with Lakewood bellhousing 4 spd. Thamks for all the advice.
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