428 engine build

[glenn]

Hello everyone,
Thought you might be interested in a engine build that a local builder finished up for me.
He did all the machine work in house and all the installation of parts on the motor. I bascily
observed the process and made decisions on his advice and dicussions on parts from tech
reps from various companys. Ihave know experience in building an engine, but i wanted to
learn how a engine goes together and how it makes it power. Iwas able to stop by his shop
regularly and see what he was working on, dicuss parts and options do some research and
then order the parts that we thought were best. This process took about two years. My
goal was to have a strong motor for the street be dependable, driveable and have more power than i have now. The dyno runs showed we had very good results. Torgue runs were from 2000rpm/480lbs, 4500rpm/540lbs, to 6000rpm/460lbs. Horsepower runs were from
2000rpm/184hp, 4500rpm/461hp. to 6000rpm/530hp. The engine was run in over a two
day period, it had no oil leaks, but a minor water leak at the thermostat housing. Engine wo would idle at 800rpm and sounded great. I'm very pleased wih these numbers in a power range of 2000rpm to 6000rpm. I believe this motor will preform very well on the street and have plenty of power. Now to decide where to use it, in the cobra, or in a 68 mustang fastback? The folling is a list of some of the specs. and parts we used.

Engine; 428cj FE, bore 4.160, stroke 3.984, cid = 434
Block; cooked and cleaned, pressured tested and magnafluxed
lined bored, bored to .030 and honed
squared decked, modified oiling system based on 427 specs.
crank; 428 cast iron
magnafluxed, miked, ground crank to .010-.010
seal power- main bearings, 2.741, journals 2.7385, clear .0025
seal power- rod bearings, 2.441, journals 2.4385, clear.0025
pistons; wiseco, forged flat top
piston rings- seal power
piston pins- wiseco, with spiral locks
connecting rods; eagle, center to center length 6.490
camshaft; predator cams, had it ground by a local company.
hydraulic roller, lobe lift, intake .328, exh. .338, valve lift, int, .567, exh, .585
valvetrain; erson, rocker arm ratio 1.76
push rods- crane, 8.5 length
intake valve springs-crane
spring seat pressure 120 lbs.- spring open pressure 394 lbs.
crane - giridle & retainers
heads; ford cj cast iron, inlarged and flowed bowls.
intake and exhaust seat angles top 30, seat 45, bot. 60 degrees
head cc at 72 compression ratio 10.293
head flow @ 25" h20, @ .200" intake 130cfm, exh. 101cfm
@ .550" intake 239cfm , exh.164cfm
induction; blue thunder alum. dual plane intake manifold, single carb
demon 750 carburetor
misc; melling oil pump,
canton - windage tray, oil pan,
msd ingition, rev limiter, coil, ford distributor.
edelbrock water pump
march serpentine pully system
ram clutch and alum. flywheel

This is most of the specs and parts we used in the build. A lot of you fellas will understand the numbers better than i do, but i'm trying to learn. So their it is,if you have any thoughts or how you would do it differently i be curious to know. I'll try to post a couple pictures.
glenn

[glenn]

trying to post pics

[brfutbrian]

glenn, ill bet that one got expensive quick. youve put some nice pieces together. im sure you picked up some good knowledge too. enjoy. later, brian.

[Aggressor]

Glenn - I like your numbers. Torque is right up front and stays through the range.

-Geary

[Brent]

Good numbers and good parts.
I like the components you chose. Everything is matched.

Both cars would be cool. Mustang or Cobra (-;

[Naumoff]

Very nice, Glenn.
Those numbers are great!

[Jeff 427]

Glen,
Nice low end grunt with 480 Lbs. @2000 RPM to get you going!!
530 HP on the top end to keep you going!!!

[glenn]

Hey everyone, trying to post pictures again.

[glenn]

and here are just a few more. Sorry for the delay, but I needed a younger generation to help me load them all.

[glenn]

I've decided to put the 428 engine into the Cobra.....here's one my favorite pictures of the car.

[will butterworth]

I like that picture--good looking engine too. Will-alabama

[bittentoo]

I remember when and where that pic was taken:-)

Me like's the motor!

[aks801]

Hey, your car was in the annual mag, right? I'd recognize that photo anywhere.

Great engine choice. I say that because I've been pretty much convinced for a while now to go 428CJ. Having your detail will make excellent reference info.

Enjoy!

[Brent]

I love the machined base for the rocker spacer. Very nice!
All one piece!

Cool!

[glenn]

Brian, your right, I've got about 3000 more in this motor than my orginial 406, spreading it out over the build was a little easier to do. Should have most of my costs covered by now.
Geary, Thats what we tried to build too, pretty happy with results. Been following your engine work also, should be pretty impressive.
Brent, Got to give the builder the most credit, dicussed a lot of parts and options, valve train was a big issue with him, just good communication with him.
Tony, I'm curious how the numbers compare with a 427 motor
Will, good to hear from you,That was the first time i was every at any nascar tracks and it was nice to have a photo from their. Your professor stories always make me laugh. Keep it up.
Kelly, I believe i saw some pictures of your car in Kit car builder a couple issues ago doing a
cruise event with a local club. Hope to see you all at homecoming.
aks801,I believe any of the fe motors are a good choice, and better yet, the 427 and 428
make it more authenic to the orginial cars.
Glenn

[Naumoff]

Glenn,
That engine in the Cobra is going to make you pee your pants!

Compared to a stock 427 your 428 will blow it away.
A stock 427 is not very tame at lower RPM but will pull like a jet on top end. I always found myself wanting to keep it above 2800RPM.
The stroker is another story. Tons of low end grunt and power is smooth and strong from off idle and on up through the RPM range.

Your engine is perfect for a Cobra.