Hi guys this winter im going to build a 360 for my Dart and I'd like to see how my build looks.

360 +.030
Compcams xe268
kb107 pistons
Magnum heads with pocket porting
Edelbrock airgap/600cfm performer

Keep in mind that this car has a 904 with a PTC 3500 stall converter and 3.91 gears.

Think this would be a solid 13 second motor?

Thanks

I personally would go with a little more cam and carb, maybe a xe274. but what you got will run good.

I would really like to see a crower 271/284 W 485/495 lift cam in that engine. Does a fantastic job. Ran consistant 11.70, in 3000 lb car stock 587 heads with no porting or gasket matching and 4.30 gears. Should easy make a 3.91 geared street dress Dart or Duster run the low 13/mid 12's with good tires for the gear.

Dunno, I'm not really an expert, but I think you don't need that high stall speed to get a 13 seconds car on an A body. Maybe something on 2800-3000 rate will be enough

I think i would trade the Eddy 600 for a 650-750 holley dp. I hear that the factory magnum heads are prone to cracking,something to watch for.

Better yet install the Lunati .494/.513 voodoo cam and with that holley 750 go 12's with ease..

Thanks guys!

If I used that voodoo cam, the magnum 1.6 rocker ratio would make the lift different.
.494/.513-1.5 rocker
.527/.547-1.6 rocker

Could I use that cam with the magnum heads if I got new valve springs and had the seats machined??

Thanks

Anyythime you go to aperfance cam it is recommended to get matching valve springs and allso check the clearance betweent eh retainer and the valve guide/seal surface. .060 minimum clearance on the spring to coil bind and between the retainer and seal/guide before contact at full valve lift.

Also, I've heard that 318-360 motor mounts are different. What would I need to set it up correct??

use hughes 1110 springs. stock mag springs are wimpy and only good for ~.480 lift. hughes springs/retainers should get you up to about .520-.530" usable lift, and are ~135 seat pressure with 345lb/in rate.

cam and converter should be able to handle an XE274, but you'll probably be nipping the 12's with the smaller cam.

Patrick do you think I should go with a smaller cam for my combo? would the xe274 perform well?
Also, with the xe274 and 1.6 rockers, would the spring seats need to be machined for clearance?

Thanks

my own magnum heads, stock uncut, the springs had ~1.63" IH. they coil bind at 1.1" (measured using a vice and calipers)using the hughes 1110 springs, and junkyard retainers from a 2.2L mopar with the magnum keepers, I had 1.60" IH. these springs coil bind at 1.04". when I had the valve job redone, instead of machining the spring pads (which I've heard are kinda thin), I had them sink the valves .030", which netted me 1.63" with my retainers. the hughes spec retainers give you a little more IH, I think. you'd have to measure your own parts to be sure of what you could/couldn't get away with.

I personally am one that feels a lot of people overcam their motor for their needs, and I prefer to speak softly and carry a big stick (be fast, but with as tame an idle as possible). I think the comp XE268 or crower mentioned will be enough cam for your needs (something in the 224@.050)...the bigger cam might make more power up top, but sacrafice some low and midrange that is a lot of fun on the street.

if you plan on following Dulcich's magnum porting article from the may '05 MM, I'd think about a single pattern cam, maybe a like a comp 270H or 280H....

You didn't indicate whether or not this is going to be a strip car or street car or both. I ran a .030 over 360 block with a 284/484 hydraulic purpleshaft,a torker 340 intake, with a rejetted 800 double pumper holley and a 904 with a 3000 stall and 391's and my car would flat move! I tried a 750 holley and it was slower IMO the setup liked the increased airflow of the 800 with the jets of the 750. If I had it to do over again I'd probably get one of the Hughes cams and get some of their input on the rest of your setup. BTW my setup was in a 71 demon.

The only things I'd change are the carb and cam,easy high 11's. A Holley 650DP would be a good choice and if you can't go solid lifter cam,call Tim@Bulletracing cams for a good hyd lifter cam.I'd stay single pattern and 108-109lsa. Grind #CRA284/284 works very nice for a mild street/strip 360. Valve springs need 125lbs seat 300lbs open.

You should speak with the cam grinder before you make a purchase. The power band of the motor (cam selection) needs to work with your 3500 converter. If they do not work together, you will not optimize the package and you may be disappointed. They will need to know a bunch of facts to get you the right cam. Compression (measured and calculated, not guessed)and other stuff will affect your choice.

You'll need a hand full of thick washers to shim the 318 engine mount to fit the 360 block. Measure carefully so you don't crack an ear bolting things down.