How do I build a 600 HP 428cj?

[blykins]

It shouldn't be that hard to get 600hp out of a naturally aspirated 428FE.

Here's one that I built that made almost 540hp after tuning. This was with 428ci, out of the box Edelbrock heads, a roller camshaft, and a Tunnel Wedge intake. It was also using some Superformance Cobra headers, which were far from a good set of dyno headers. As Barry R stated, when you approach 600hp, block strength is a concern. This one had cross-bolted billet main caps installed.







I'm more of a SBF man myself though. This little Windsor made 586hp at only 5900 rpm.

http://www.youtube.com/watch?v=xFEE-FBsbWU

[Fordzilla]

Brent, Nice numbers for a small block!

Regards,

[blykins]

Originally Posted by Fordzilla

Brent, Nice numbers for a small block!

Regards,

Thanks, that was on the very first pull. I took it off the dyno early as the cam's ramps were a little too wild...even with 160/425 lb spring pressures and titanium retainers. No doubt in my mind that engine was capable of 625hp very easily.

I won't trust my cam grinder so easily next time.

While we're sharing dyno videos, here's one I did for a darkside customer:

http://www.youtube.com/watch?v=orvXF8bETJs

Very nice little engine for a '65 Nova SS build. 355 SBC, stock heads, roller cam, Performer RPM intake. 320hp on Dale's dyno.

[tmareina]

Look in my gallery...I have a 428 FE with 614hp and 550fp torque. It has a solid roller cam,lifters, tunnel wedge intake w/ dual 660 hollyes, edelbrock allum. heads and a lot more...has 11.4 compression and runs on pump gas with about 5 gal. of av. gas added each refill or a bottle of Lucas Race Octaine boost. I have run it with just pump gas and have had no problems, however. The car is wicked fast but very streetable. You just need common sence when you drive...it runs cool and reliable. Tom Lucas at FE Specialties built the motor (he has a link on this site) and yes the motor was rather pricy BUT I feel it was well worth it. It's all about what YOU want 'cause you have to drive it and be happy with the product.

Tom

[Fordzilla]

Originally Posted by tmareina

It's all about what YOU want 'cause you have to drive it and be happy with the product.

Tom

I agree.
Nice engine Tom & enjoy your retirement.
From a fellow Lawman
Regards,

[pop66ltd]

great engine brent,you must have fed bandit a biscuit,hes still howling for another,i just love that dog.question for you,you said you had 160 seat pressure,what cam lift were you running,it seams light,not miller light.

[blykins]

Dennis, it was a hydraulic roller, with .620" lift at 1.7RR.

However, the ramps were too aggressive. With 445ci, a 250° @ .050" camshaft shouldn't have been wild at all, but should have peaked at about 6200.

The advertised duration was 292°, with a 170° duration @ .200". It was a really aggressive lobe and it was lofting the valves.

For 445ci, it was really a mild cam, but I don't think my grinder took into account that SBF valves are a little heavier than others.

Cam degreed perfect....I'll give him that. Came in right at 112/112, then I installed it 2° advanced as he suggested.

Like I said, that was the first pull without any tuning. We made a couple of pulls, then gave up...I knew we were losing control of the valvetrain. It was flat on top and there was witness of valve float by looking at the tops of the valve stems.

Here was the first breath it ever took:

http://www.youtube.com/watch?v=M3LUrXkNhSE

[pop66ltd]

i thought it was a solid roller,you had some good numbers.thats what i like about dales dyno if it says 10 then its 10,no atmospheric unreal inflated numbers with his dyno.who ground the cam?ive been having some problems with erson on their grinds,so im going back to lunati if they dont get things straight,i also hear good things about cam research out west,you ever used them?

[blykins]

A good solid roller on that SBF would have made 675-700 hp. The heads flowed 343cfm @ .650" lift. They were Trickflow TW-R heads.

I'd stay with a reputable cam company like Comp Cams. I have a lobe catalog and I have just been picking lobes and having custom cams ground for me.

[pop66ltd]

i have a list of cam profiles that we use and was having erson grind them for us but their numbers are drifting to the point I'm fed up with it,if i order a certain grind then i expect it to come back as such +/- of coarse.but i had one the other day that was .040 off on the lift and of all things it was my exhaust side so i was screwed.Ive got a wicked blower motor to dyno next week,if you have time come on down and see it.i love those dyno sessions.talk to you soon.