Last week I went to Dwayne's shop to dyno the new Big Cube build for my heavy (4100 lb) street/strip Charger aka the "Black Pig". The car is a Tank so it needed to get a new bullet with LOTS of torque to help with the launch & short times. I wanted this to run on pump gas as well because i do drive the car on the street.

Basic combo ;
- World iron block 4.50 bore
- Eagle 4.50 crank & 7.10 h-beams
- Diamond racing custom dished pistons (10.6:1)
- PRH roller cam
- Isky ez-roll lifters
- Harland Sharp 1.5 rockers
- ICH EZ 295's with some Porter Racing Heads valve/chamber/port work
- MP 337 low rise single plane manifold + 1in open spacer
- Quickfuel 1050 Q-series 4150 carb
- MSD pro-billet distributor
- Firecore 50 ignition wires
- NGK plugs
- 2in dyno headers

The plan ; Basicly i was looking for a strong streetable engine that would be quite responsive for street driving, have nice manners and still make respectable power. Dwyane did all that and then some ! The idle is nice and clean @ 1000-1100 rpm and is very responsive to throttle position change.

The Tq curve is impressive ; over 600ftlb from 3500 to just under 6000. The HP is also holding on pretty solidly after 5500 rpm peak only dropping 8hp over 500 rpm @ 6000.

So basicly we have a 700hp/720tq combo that runs fine on pump gas and idles nice and clean. The QF 1050 carb was tested right out of the box (691 hp) so there is more in it....Dwayne figures 700 hp is no problemo.

I have to thank Dwayne and Kudo's are well deserved. This should be a nice upgrade over the old 446 that Dwayne built several years back. For reference that engine made 530hp/525tq and ran a best of 11.68@116 in the 4100lb Charger....on pump gas as well.

Here is the first dyno sheet with the MP 337 manifold/1in spacer & quickfuel carb. This is how it will be run in the car with the stock hood.


Ron

Pretty nice street motor!

But, with a 4.500 bore, why did you choose the EZ heads?

very nice...wow pump gas engine...wish you luck on hooking that beast on the street, you going to need it

Hey
Im building a similar engine with the same bottom end, just wondering if the block required notching, and did you run the internal pickup that bolts in those blocks?

Just for reference here is a second pull with the ICH 440-2/carb adapter & tweaked 1150 Dominator. The difference in peak power would be ~25hp vs the M1 337/QF 1050.


Ron

This is the car that it's going into. Will need several upgrades to the fuel system and driveline.


Ron

I allready had the HS 1.5's on my E-heads and wanted to re-use them. The exhaust is also configured around the std port location so i didn't want to replace a set of $900 TTI coated headers.

The reworked 295's flowed 360cfm which is plenty for a build like this. With a piston swap/bigger cam & better induction package this is an easy +800hp combo.

Thanks for the compliments



Ron

Ya...it's going to be a handful to hook !

Allready have a Caltrac setup to install that will replace the SS springs. The MT drag radials work awesome and Chip has had excellent results launching his beast with more power

We ran an internal pickup with a Milodon stroker windage tray. The oil pressure was starting to drop off at the higher rpm's (see dyno sheets) so Dwayne wasn't thrilled. It will be getting an external line system as an upgrade.



Ron

Its really easy to make the engine a duel line system..Use the oil port by the driver timing chain cover and plumb that to one side of the oil pan pickup.
Then using your existing oil pump and intermediate drive, by just adding a Milodon pump cover or one of those Muscle Motors pump covers which have a oil port on the back of them..
Just run the other line from there to the other oil pan pickup.
Now you have your self a duel line system without buying a whole new Milodon oil pump, and long oil pump drive.

FYI
I ran this setup on a similar aluminum Indy engine and oiled fine to 8,000 RPM.
I will run this setup on the Hemi...
Do you remember if the block required any notching?

That's gonna be fun on the street! CHIP

More good work out of PRH. Nice motor/car BTW.

Looks great Ron



Will be in the 10's for sure now

Yep....Dwayne delivers, and then some !

Rob (Dartman) thanks....yep it should be solidly in the 10's.



Ron

Wow... all that torque would break my Challenger in half.

I'm assuming the next people on your contact list include a trans guy, a driveshaft guy and a diff guy.

Very nice numbers. And considering that particular dyno seems to be conservative on power numbers, this deal ought to rock!

Really nice combo. With the availability of the new World blocks and the longer stroke cranks I think we'll start to see a lot more of these big inch engines hitting the street. Looks like that 337 intake worked just fine on your motor.

Did you use a double valley cover or did you make some end rails and use the floor of the 337 as the valley cover?