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