I am a proud owner of a 66 f-250, with a 352, Manual 4 speed. I am planning on rebuilding the engine. I plan on putting on some high performance parts.

1. Holley 750 CFM 4 barrel, vacuum secondarys, manual choke.
HLY-65-3310

2. Edelbrock performer 390 intake. EDL-2105
3. Edelbrock cam. EDL-2106
4. Underdrive pullies. MCH-1930
5. MSD Distributer. MSD-8594
5 1/2. Already installed MSD wires and MSD coil, with split fire plugs.
6. 80 GPM fuel Pump. SUM-250006-1
7. MSD ignition module. MSD-6420
8. Purple hornie mufflers. BIG-50232FLT
9. headers. HED-89100
10. 390 CRANK, RODS, PISTONS, with the engine bored .050 over should fit the pistons.
11. A top all that, K&N open air filter.

Now with all thats said. Will it work? And Will the Engine be a 390? Will I need to do any head work (other than rebuilding, which I plan to do) or leave them stock? What I want is a High Performance 390.

Plus some other stuff, like a high output alt. and a bigger battery. I would like to put a FM modulator and a couple of 6X9 behind the seats.

 

looks like a good plan. here are a few of my suggestions:

1. first, search this forum for gobs of information on building a mild to hot 390.
2. Edel Performer RPM intake instead of the std. performer. it will breath much better at higher RPM than the std. performer
3. scratch the edel cam- look into some of the Crane, Comp, Crower etc for Cams. The Crane 343901 and 343941 are popular choices in this forum. the 941 is a solid choice for a semi-hot truck 390
3.5 select pistons to match your cam (this will basically define your motor). I've learned from this forum it's all about compresion ratio. There are some off teh shelf pistons out there that should get you in the 9.5:1 comp. range. that's agood number to use a little more cam and still run on pump gas.
4. Full MSD ignition- I've got the whole MSD setup. If I had it to do again, I'd look at the DUI setup from www.performancedistributor.com , less clutter and it's custom curved to your motor/cam and it costs about the same or less than the MSD cluster setup. If budget gets tight, just get a stock Ford duraspark or a pertronics conversion for an older Ford dizzy. You could save $200-300 here.

yes it will be a 390. Your heads will work fine as is, but you should consider porting and upgrading to CobraJet (2.09/1.65") size valves to compliment the rest of the engine. I think underdrive pulleys will go unnoticed on a 6.4l engine, except for poor alternator, power steering and water pump performance....But, then I have no experience with underdrive pulleys on an FE motor.

 

i have a problem with 2 and 3 on the list. The performer is not better than stock intakes as for power, so you will want the rpm intake. That edelbrock cam is weak, I think there whole performer line of cams are junk.

weak is 194/204 at .050, .460/.480 and i bet thats with the 1.76 fe rocker ratio so that knocks it down to .452/.472.

Stock for a 390 2bbl is 192/199 at .05, .427/.431.

Then the edelbrock rpm cam is too big imho, so choose a different manufactur.

 

Will it work?

It depends on your definition of "work." Will it run? Probably.

And will the engine be a 390?

Yes, it will be a 390.

Will I need to do any other head work?

Nope, you dont need to. But you will benefit from having 'em ported. You will also benefit from having a 3 angle valve seat job, and converting to an adjustable valvetrain.

I want a high performance 390.

You will not want to use the cam you mentioned. It is a VERY mild cam. The Crane 343941 is a much better grind. Also, not just any 390 pistons will work. Some are dished, with a low compression height, and will leave you with a lower compression ratio than you have in your 352 now! You want high compression pistons. Interestingly, it's easier just to specify 360 pistons, since they're the same part number. I also recommend ARP rod bolts, Cloyes Street True Roller timing set, and Crane springs to match the cam. You could gain a few HP by switching up to the Performer RPM intake, but you'll have to match the heads to it since it has bigger ports than the stock heads. In an F250 its probably better to use the regular Performer intake to keep the velocity up for better low end torque.

Other than that, it looks good!

 

Well on a Sim..I have to disagree about the TQ differance in the Performer and the RPM.. I didnt change any of my build but the results should be close...

Performer and the RPM..made the same TQ @ 2500rpm
And the RPM made 21 more HP @ 5500rpm?

JMO, Russ

 

Actually @ 2000rpm..the RPM Intake made 5 more lbs of TQ than the Performer!!

Russ

 

Interesting. Of course, that's a computer program; I think the real world results would be different than it's prediction. I also think, that on these simulations that we run, we need to start adding + or - 50hp! LOL.

 

Yeah Kurt it all just a patrs Practice....But I have one thing to say this program..Get pretty much down too the Nats Butt.

There's alot of engine Builder's out there that use this program..But of course they wont tell the Public that... Its all supposed to be there Knowlege.... BS too!! lol..

If a friend that owns a speed shop..hadnt given me the program..I wouldnt have been able to afford it!! and plus the Drag program that ties in with it..Is very accurate!!

If I'am not mistaken it predicted 13.60's for Gregs truck...and thats a good track and cutting a good tree... and I think he'll hit it this year without a problem...

Russ

 

WOW, Thank you EVRYONE for your replies. Lots of great info here. I really appreciate it. Since I'm new to the FE world. Back to the drawing board.

 

Jay I dont know what you intended purpose is for you build..But if you want some good head porting done..I know a guy Les Schmader....that does Great work on FE Iron heads...

Russ

 

Hey you guys ever read them magazines anymore, everything has 500-650hp. In fact I ran a keith Craft build he had in a magazine and i was 50hp under what he claimed from what i remember. I think its a 408ci motor that supposedly makes 647 hp or something. i will investiagte this.

 

I found the build, its in hotrod's engines magazine summer 2003. Its a stroker 351w thats now 408ci and makes 647hp and 596ftlbs.

I want anyone who cares to run a sim of the following:
4.00 stroke
4.03 bore
6.2 rod length
10.2 cr
92 octane gas(pump)
830 cfm holley
victor jr intake
lunati roller 51099
297/301
264/268
.668/.668
106 lobe sep
centerline not given(I assumed 102)
Brodix m2 heads ported 2.08/1.6 valves
flow
.200 146 113
.300 200 148
.400 241 182
.500 271 201
.600 286 214
.650 303 220
.700 307 225
headers look like 2 through 2 and 1/4 inch.

it is on the web at www.keithcraft.com/hulkengine.html

 

[QUOTE=fordeverpower] I found the build, its in hotrod's engines magazine summer 2003. Its a stroker 351w thats now 408ci and makes 647hp and 596ftlbs.

I want anyone who cares to run a sim of the following:
4.00 stroke
4.03 bore
6.2 rod length
10.2 cr
92 octane gas(pump)
830 cfm holley
victor jr intake
lunati roller 51099
297/301
264/268
.668/.668
106 lobe sep
centerline not given(I assumed 102)
Brodix m2 heads ported 2.08/1.6 valves
flow
.200 146 113
.300 200 148
.400 241 182
.500 271 201
.600 286 214
.650 303 220
.700 307 225
headers look like 2 through 2 and 1/4 inch.

it is on the web at www.keithcraft.com/hulkengine.html [/QUOTE]



So far it looks as if no one cares I wish i had one of those sim because i would like to know how much of a difference it is for myself.

I would also like to run my build and make some changes if it made a big increase in HP and TQ

 

Well It took me awhile to run it..Because I didnt have quench #s..and header length and collector Diameter and length...etc... But this is what my EA 3.2 came up with..

HP @ 6200RPM= 638hp
TQ is 590 to 592 from 4500 RPM to 5200RPM

Hope this helps ya!!

Russ

 

And By the way..Icould not run it on 92 octane without Pinging!!!

Russ