360 motor sugestion?!

i bought a 360 motor that came out of a 75 dodge power wagon. im begining to take the motor apart for the rebuild. my goal is to get about 450 hp to the wheels. im not to sure how to get that much power but i am wondering if i should get some aftermarket heads or take my heads to the shop to get work done on them. i am putting the motor in a 68 coronet. if u have any sugestions on this build please help me out  

Get some indy rhs shaft mount X heads and a .500 or so lift 284*duration or better w/10.1+compression along w/hughes roller tip rockers or at east some iron adjustables and some 1 5/8 headers & 2 1/2 exhaust  
age is no lock on brillance

Or have some J,X,U heads ported and rebuilt with the rest of the combo mentioned + 700+cfm carburetor  
age is no lock on brillance

Any 360 head will do, just have it ported and polished with a 2.02 intake valve.
Solid cam, .528 lift mopar cam works nice.
Aluminum roller rockers either duration 1.5 or 1.6.
Air-gap intake with 750 HP/DP.
MSD 6al.
I beam rods.
9.5/10.0 comp. If you do go to aluminum heads, go another point higher in compression.
Good oiling system.
out of the box this set up is good for close to 450 HP. With some tuning you can find another 20+ HP.
1 5/8 headers work best for overall performance.  

If you are looking for 450 horsepower to the wheels, It's going to take quite a 360 engine--especially if you are running an automatic transmission.

Will this be a street car?

You will definitley need good, ported aluminum heads.

Fairly high compression around 11.0:1, and a stroker kit would help

a hydraulic flat-tappet cam won't cut it. You could use a solid flat-tappet cam, but a hydraulic roller would be a better option.  
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Some people are like Slinkys; they're not very useful, but fun to watch when pushed down the stairs.

Editor Bolig is correct. This would take one mean 360, something in the 1.67 hp/ci range or about 600 hp at the flywheel. It would be like the 358 ci engines that were running in Nascar in the late 70's, 12:1 compression, W2 cylinder heads, a Holley intake and 850 cfm carb and a mushroom lifter cam in the 270 degrees @ .050 and .630 lift.

Substitute a roller cam, Edelbrock Victor intake, cylinder heads that flow 300 cfm @ .600" and you have something that might be competitive in the next Mopar Muscle Magazine engine challenge.  

nahhh.... just ported w2 econo's with .590-.620 lift roller cam 1 3/4 primary tube headers, matched m1 single plane+830cfm carb and 11.2.

Don't need aluminum when cams bleeding it off to a safe dynamic like 185psi, then it's all in the tune/timing curve.  
age is no lock on brillance

450 at the fly wheel is a lot for a small block let alone at the rear wheels but can totally be done. Either way you going to spend a lot of money building this motor if you do it and 450 is going to take either high RPMs or boost and I would go the boost route force fed through the carb with a centrifugal super charger.  I don’t know how much power you can safely push out of your motor before it breaks but I bet you could safely squeeze 400 out of it and it would feel more powerful than a 450 HP naturally aspirated motor and I would bet my car on it you could do it with out replacing your heads or bottom end. This may not be the answer you’re looking for but this is the road I would take.  

Wow, I thought he meant 450 at the crank. Ignore my original post.
550/600 at the crank? Lets see,
Hughes engines has a 360 build in there tech. articles from a few yrs back. Use this as a blueprint to making the horsepower you want. I know it is naturally aspirated, and can be built with iron heads.  
Doc  

hey bossnda916 what is "to the wheels" ? 450 at the flywheel is easy, 450 at the wheels is about 100hp more difficult with an auto and 75 more difficult with a good standard. tell us more about the total plan and combo etc. do u want to adjust valves with solid lifters,and hyd. rollers do not rev hi. it boils down to your budget $  

Here's what I am doin with my 360/408....030 over, 4" stroke Scat forged crank, stock length Scat forged I beam rods, KB 5cc reverse dish forged pistons balanced and blueprinted, Mopar .484/.484 Hyd flat cam,Mopar springs and lifters, Hughes adjustable roller tip rockers, Edelbrock ported/polished heads, Edelbrock RPM AirGap intake, 750 BG Demon carb,727 trans, 2800 stall, 3.91 posi, if you have any faith in Desktop Dyno it should be a great street motor, we'll see  

Sounds like alot of money but taking my time, finding deals, and doin all but the machine shop stuff in my garage with my son... what do you guys think for an ignition, I am thinking all Mopar stuff.  

MSD 7AL-2 with a pro billet dist. and 8mm min. wires, you can lock down the dist. and dial in the start-retard, works awesome!  

maybe the 7al is overkill for your combo. msd 6 , mopar orange box kit, etc. are good options and the a body must use a good old small dist. cap.  

yea i want at at least 450 to the wheels. im not too sure about my build i was talking to a few mechanics today and they sugested to destroke my 360 to get higher rpm. i was thinking about throwing a stroker kit in with flat top pistons. was planning on going msd ignition system with a single plane intake manifold with a holley 750 cfm carb not to sure with the cam or valvetrain