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Discussion Starter #1
Well I'm getting ready to start purchasing parts to build my Marauder engine. I want to get it running strong at between 4 or 5 hundred HP. Was considering a stroker kit to a 445 but I'm not sure. Maybe just a can swap and aluminum intake? Not opposed to spending money but not sure if I should go full tilt with aluminum heads and the works or if anyone has a better suggestion since I'm shooting for reasonably low numbers. It would be great to just swap the cam, clean up my stock heads or throw on some edelbrocks, and throw a aluminum intake with 2 hollys on it and call it a day cause it would save me the headache of pulling the motor. Any recommendations on this with experience and actual parts would be great
 

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I'm not a mechanic so take my thoughts with a grain.... Cam and intake will help and some good breathing exhaust as well... Just wanted to give you a bump to the top of the list so some of the real tuners could see your thread... Have a good one and good luck with the build, keep us posted and we do like our galaxie porn so pics are always welcomed.
 

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Well I'm getting ready to start purchasing parts to build my Marauder engine. I want to get it running strong at between 4 or 5 hundred HP. Was considering a stroker kit to a 445 but I'm not sure. Maybe just a can swap and aluminum intake? Not opposed to spending money but not sure if I should go full tilt with aluminum heads and the works or if anyone has a better suggestion since I'm shooting for reasonably low numbers. It would be great to just swap the cam, clean up my stock heads or throw on some edelbrocks, and throw a aluminum intake with 2 hollys on it and call it a day cause it would save me the headache of pulling the motor. Any recommendations on this with experience and actual parts would be great
What are your goals with the car? 4 speed or auto? Rear end ratio?

Sure you can make 400+ with a 390, but its alot easier with the 445 and your heavy car will like the extra torque too.

Without pulling the engine, the Edelbrock heads, a good cam, and a 2x4 intake should get you right around your 400 hp goal. Past that you would have to get pretty radical with your cam, and you would loose streetability.

Now I've seen a 445 with cleaned up C4AE-G heads, streetable hydraulic roller, and 2x4 make 450 hp with loads of torque.

Again, a little more info about your car will make it easier to give you recommendations.
 

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Discussion Starter #7
What are your goals with the car? 4 speed or auto? Rear end ratio?

Sure you can make 400+ with a 390, but its alot easier with the 445 and your heavy car will like the extra torque too.

Without pulling the engine, the Edelbrock heads, a good cam, and a 2x4 intake should get you right around your 400 hp goal. Past that you would have to get pretty radical with your cam, and you would loose streetability.

Now I've seen a 445 with cleaned up C4AE-G heads, streetable hydraulic roller, and 2x4 make 450 hp with loads of torque.

Again, a little more info about your car will make it easier to give you recommendations.
I'm running stock rear end and gear ratio. Car is a auto. With the weight of the car I'm honestly more interested in more torque. HP is not as important to me. I just want to keep the original engine. Car is a driver no strip just want to have fun with it around town.
 

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I'm running stock rear end and gear ratio. Car is a auto. With the weight of the car I'm honestly more interested in more torque. HP is not as important to me. I just want to keep the original engine. Car is a driver no strip just want to have fun with it around town.
I guess it just depends on how much you want to spend. If your 390 is tired then even a performance rebuild with a few upgrades will make a huge difference. The best bang for your buck would be to rebuild what you have, upgrade the cam, CJ valves with a good valve job/ port cleanup, aluminum intake w/ Holley 750, and headers and it will feel like a new car. That will all work with your auto and stock gearing as long as you don't get carried away with the cam.

The 445 option makes even more HP, but then you'll probably need a new C6 behind it too.

I went through the same delema with my last Galaxie. I ended up choosing the 445, but sold the car before I got it built.
 

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Discussion Starter #9
I guess it just depends on how much you want to spend. If your 390 is tired then even a performance rebuild with a few upgrades will make a huge difference. The best bang for your buck would be to rebuild what you have, upgrade the cam, CJ valves with a good valve job/ port cleanup, aluminum intake w/ Holley 750, and headers and it will feel like a new car. That will all work with your auto and stock gearing as long as you don't get carried away with the cam.

The 445 option makes even more HP, but then you'll probably need a new C6 behind it too.

I went through the same delema with my last Galaxie. I ended up choosing the 445, but sold the car before I got it built.
Any idea on headers with power steering? I was told only ones that will work are old cast iron ones
 

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Discussion Starter #11 (Edited)
Here's a pic of the Marauder. I just put the new fuel tank in and now I'm rebuilding the power steering pump. I can't get a descent picture of it in the garage. Soon as I get the pump bolted back in I'm pulling it out for a good photo
 

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Here's a pic of the Marauder. I just put the new fuel tank in and now I'm rebuilding the power steering pump. I can't get a descent picture of it in the garage. Soon as I get the pump bolted back in I'm pulling it out for a good photo
Good lookin car. It's obvious you aren't trying to make it a race car, so even the upgrades I mentioned below will go a long ways but keep it nice to cruise.
 

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Discussion Starter #14
Good lookin car. It's obvious you aren't trying to make it a race car, so even the upgrades I mentioned below will go a long ways but keep it nice to cruise.
Definatly not building a racer. Just want good throttle response with a healthy rumble. If I get on it I want to be able to turn em loose but that's about as close as its gonna get to racing lol.
 

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It would be great to just swap the cam, clean up my stock heads and throw a aluminum intake with 2 hollys on it and call it a day cause it would save me the headache of pulling the motor.
I like this idea plus a few other key things like a gear set and trans/converter work. Are you aiming for ET's or just hp bragging rights?

Im putting together a 427 with my stock c4 390 head casting with larger valves and runner/bowl work. Shooting for 10.0-1 to keep it pump gas freindly. Edelbrock streetmaster with quite a bit of messaging/solid flat cam/ mallory dual point/ and a carb offering from quick fuel. I cant see how a 390 cant make close to 400 or more with a similar combo.
 

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Has the engine been rebuilt recently? Or is it an old tired stock engine?
 

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Discussion Starter #20
I like this idea plus a few other key things like a gear set and trans/converter work. Are you aiming for ET's or just hp bragging rights?

Im putting together a 427 with my stock c4 390 head casting with larger valves and runner/bowl work. Shooting for 10.0-1 to keep it pump gas freindly. Edelbrock streetmaster with quite a bit of messaging/solid flat cam/ mallory dual point/ and a carb offering from quick fuel. I cant see how a 390 cant make close to 400 or more with a similar combo.
Not really aiming for neither just want to have good throttle to enjoy driving it
 
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