500 HP 428

[jayb]

From bn69stang, sent to me as a PM by mistake:

Hello ford fans , im a newbie and have cam question . I have a 69 mach 1 with 428 that is 40 over , 10.75 to 1 comp , biue thunder dual plane intake , holley 750 hp double pumper , fpa header s , msd ignition , tremec 5 speed ,   3.70 s with a locker . this is a street car mostly , heads are stock can i make 500 hp range with the comp 282 s solid , want rpm range about 2200-6200 ? . Do i need to do bigger valves and bowl work to get there ?

[ScotiaFE]

I`m going to say 425ish with a wheelbarrel full of torque.
If the heads are stock to the car you may want to reconsider rubbing them.
For some reason the guys with money always want stock. lol

[machoneman]

Buy Jay's book!

[bn69stang]

well thanks guys , and i forgot to add they were edelbrock my bad . will bigger valves , bowl clean up add 35-40 hp like Barry s mentions ? thanks..

[drdano]

well thanks guys , and i forgot to add they were edelbrock my bad . will bigger valves , bowl clean up add 35-40 hp like Barry s mentions ? thanks..

I think you're still lacking the cubes and/or cam to approach 500HP even with the edelbrocks.  Others can probably get a more precise estimate, but I'd say around 450HP is where you're at now. 

Why the 500HP target on a street car?  What you have now will be quite decent pushing that mustang around.

[bn69stang]

yeah i guess cubic inchs , i have another 428 block so maybe a 462 ish inch stroker    or just tell my wife i want a genesis 427 block for x mas ..   thanks

[ScotiaFE]

The smallish cam will hold you back.
Bigger roller and work on the heads. You can get a 2.10 valve in there.
Stock Ed's are not even close to max flow. A good home port job will see pretty good gains.
A really nice valve seat will see 10 + gain over stock Eds.
Bigger headers will net you a few.
Reworking the cooling system will net you 20 +-.
All the little things will add up.
If you really need a boost a small shot won't hurt.
You can get there, but work, time and money...

Santa will not be bringing you a Genesis. They have been out of production for a while now.
There are other options though. Pond and Shelby.

[bn69stang]

Thanks for the input , would love a Shelby block and a 4.375 crank and a few other parts ..

[plovett]

As others have said, the main things you'll need are more cam and a good port job on the Edelbrock heads.

Here's a combo I ran many years ago that is somewhat similar to what you're talking about.  The cam is only a few degrees larger than the 282S you mentioned, but it has considerably more aggressive lobes, for more area under the lift curve.

It was dynoed on a DTS engine dyno with open headers.

-428 "C" block bored 0.025" over for a 4.155" bore. 432 cubic inches.
-Factory cast 428 crank
-Factory CJ rods with ARP bolts
-Holley 850 double pumper with choke horn milled off. 76 jets all around.
-Blue Thunder dual plane intake port matched to heads. 1" four hole spacer.
-Edelbrock #6005 heads with Ferrea 2.09/1.65" valves, 45 degree seat intake and exhaust. Intake ported pretty extensively. Exhaust just cleaned up. Flow @ 0.600" 293/206 cfm.
-Harland Sharp roller rockers
-JE forged pistons. 10.5:1 static compression
-Solid flat tappet cam. 270/276 degrees @ 0.020". 240/246 degrees @ 0.050". 0.598"/0.608" gross lift. 108 degree lobe separation. 107 degree intake centerline. This is a Compcams custom grind. Intake lobe is a 270XTQ and the exhaust is a 276TL. Lifters are Crower dumbbells with the "cool face" EDM oiling hole.
-Milodon deep sump oil pan. Melling HV oil pump. oil passages opened up at oil pump mount. 0.090" restrictors to rockers. windage tray.
-Crites headers. 2" primary tubes. 3.5" collectors.
-MSD Pro Billet distributor. MSD 6AL box. MSD Blaster coil. 16 degrees initial timing. 37 degrees total.

RPM---HP---Torque
3000--261----456
3100--274----464
3200--288----473
3300--303----482
3400--317----489
3500--330----496
3600--344----502
3700--358----508
3800--371----513
3900--384----517
4000--395----519
4200-417----521
4300--426----520
4400--435----519
4500--443----517
4600--451----515
4700--457----511
4800--464----508
4900--471----505
5000--477----501
5100--483----498
5200--489----494
5300--495----490
5400--500----486
5500--506----483
5600--510----478
5700--512----472
5800--513----464
5900--514----457
6000--515----451
6100--516----445
6200-517----438
6300--514----428
6400--502----412


paulie

[427highriser]

Keep your parts. go with a 294s comp cam (one up from the 282). flat tappet solid. keep your heads w/ the valves. bowl cleanup wouldn't hurt. this will yield you 500 horsepower. all day. tad more compression wouldn't hurt either. don't waste money on a complete shortblock. keep it all, spend $ in the valvetrain

[bn69stang]

nice thanks Paulie , thats a healthy f e .. looks like some head work and a cam change for my 428 . thanks ror all you guys input .