950HP 396" w8 engine

Cool build that I just got on the dyno Saturday.

4.200" bore
3.58" stroke
My CNC program in the w8s
Engine had CFE Sheet metal intake that we made new billet top.

Also ran it with my own single cast intake.


https://youtu.be/8nlfe668CGg

Another nice screamer.

Mighty nice...

Very nice work.

Man.. you make some big power on all
the stuff you build

2.4 hp per cube na, good job!

Very nice work. Wasn't an apples-to-apples test but I'm amazed at how well your cast intake sized up against the sheet metal.. hats off to you and your hard work.. now get the converter in your car and get out there and print some slips..

I would like to see one of these things with mechanical injection 🤪

And no other details?!?!

Awesome!

just awesome, What CFM are you getting thru those heads?

Did I miss the numbers with the cast intake?

Nice power from that package. Looks like you could free up some more power if you had a good set of dyno headers. The tight bends in those headers are probably killing 10 or 15 hp.

Heads look nice, I didn't realize how high the port were on those heads. Looks like the ports are raised almost 2 inches from an iron head?

I'm not much of a SB fan but you have those engines working nice. If I had any of the billet SB timing covers left I'd send you one. The billet covers I used to make would look nice on an engine like that.

Believe it or not but some guys like to dyno their engines with their own headers. Kinda gives them a closer tune for those that race at the track

That engine has a belt drive, it wouldn't need your cover.

These W8 or W9 small block Mopars will out run most big block Mopar combos, I'm a Big Block guy but these things are changing my mind.

say it ain't so welcome to the dark side

Amazing stuff !!

He just left the dark side!

Show off. LOL Just badazz Brett.

I just never messed with them but now that I have......Looming Darkness for a lot of my other brand small block guys. LOL!

Like this!

2.4 is a great result for sure. A lot of really stout SB stuff out there for everyone these days. Some of the combos we see in NA 10.5 are making some big steam for sure. Wish there were more readily available block options for the SB guys. I have always wanted to do a modern day W engine. I had a W2 that worked well way back in the 90's and it worked well but nothing like this new stuff..

They flow around 400 with a 2.180 and 280s on the exhaust with 1.60 valve no pipe.

Cast intake numbers.

Wow, that is stout!

Thanks I am real happy with the numbers but know I left a bunch on the table.

I was shooting for peek HP around 8700 ( cam needs work to do that)

Intake was not built for this engine so gave some power up with that

CR not what I wanted but valve pockets win out over CR😂

Cam is not on kill this is more what I would call fast Bracket cam ramp speed is mild and should go good many passes on the springs 80+ I would think.

Our goal was 915-920 so hit goal with little room to spare.

1.61 torque per CI is cool also 😉 At 7500 RPM😂

Hey Brett....
How big is the carb on that motor?
Cant believe the carb sizes your running. Love it
I learned small block mopars go faster the bigger the carb, from you. Wont forget it.
Still hard to believe a dinky 318 runnng 6500 max loved a 950 over smaller carbs.... lol
Wish now i had put a dominator on it before i sold it just to see

Lots of BIG carbs on SMALL engines in this world. They make power. I think most guys would be very surprised how big some of them are.

Killer combo for sure. I'm surprised the RPM is as low as it was at that power. I'm sure you have more there just in the RPM deal which will make more power. Ya know what they say either more cubes or more RPM to make more power

Yep, like 2000+ cfm big..... thats big for a single carb

Back in 1986 when I was running my street/strip 340 '71 Cuda at SPR, all the racers kept telling me that my 850DP was too big for my little motor, to shut them up I put the 750DP back on which came with the car when it was a lesser tune and it went 2/10ths slower, and I had stock heads on the motor.

Better example of big carbs was>>1 of the racers was running a tuned Ford Cortina with a rover 3500cc (215ci Buick) motor, stick car, I told him to try my 850DP on it over his 600 Holley, he just laughed but did it,........2/10ths quicker ...big carbs work

And that is a terrific combo, 950hp...wow...would show a few boys over here that mopar can rule over chebs.

Everyone thought Herb McCandless was nuts putting a Dominator on a small block back in the day. Until they saw it run.

Bill

Brett definitely build killer Small Blocks! Amazing job Man!

One of these days Brett will do a clean sheet Max effort build.. a lot of these are freshen UPS and upgrades.. there's always stuff left on the table.. mine for instance is a rehashed bracket combo.. kind of a fast bracket deal.. kind of morphed into something else.. Brett's work ethics and knowledge are second to none.. we are lucky to have him around..

You are right Shiloh. We are lucky guys! Last year I called to Brett about a W9 project that I was planning and He explained a lot of things around a W9's build. By the way He had a ton of patience because my english is poor. lol

r

Very much respect for this man’s knowledge and talent.

Very nice build Brett.

Brett's a great guy, he answered a bunch of my questions and pointed me in the right direction when I was planning my 434 build. First class IMO.

I would say 1100 hp is capable from a ON KILL 450ci P7 in Bretts Hands.
P7 heads done by Slawko w NO welding are capable of 440cfm @ 1" of lift.
As for a ALL $ No Object Big ci w8 or 9 1050 is MAX by ANYONE.

Fishy340,

Tell us more about the 450Ci P7 engines.

What block, bore and stroke?

Thanks!
Bill

My math says 925 on average HP.. thing will be an animal if they take time to sort out the gearing and the converter.. most people Overlook average horsepower. Given the RPM range of this engine I would imagine that it will live a long healthy life..

Nice build Brett..that thing cranks!

Thank you sir,
Amazing build

average Hp #s get lost on people who only focus on Peak HPs
that was the one thing I liked about BBMs vs BBCs, yeah you could out power the Mopar but the right driveline combo the mopar would always win on the street(with in a reasonable hp Difference)
, it's like the LS vs G3 hemi G3s average Hp is better with less cam.
, or bring it back to this build, this W8 has a 45 HP average advantage over my bosses latest LSX , and I'll bet This W8 has less money invested in it.

Great build, great power!!!

EEI Block,4.165 bore,4.250 crank