The Combo uses the Trick Flow 23° Street heads. These heads are not the Twisted Wedge heads for which Trick Flow became known. Instead, these are direct bolt-on heads, and are marketed to compete with $750/pair to $1,000/pair heads such as the World Products Sportsman II, Dart Iron Eagle, Edelbrock Performer RPM, Holley Systemax, etc. With some help from the roller cam, this engine makes 460 HP and 451 ft-lbs of torque.
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| Displacement: |
383 cu. in. |
| Carburetor: |
Holley 750 double pumper |
| Heads: |
Trick Flow 23° Street |
| Intake: |
Edelbrock Victor Jr. |
| Camshaft: |
Comp Cams hydraulic roller, with 230/236° of duration @ 0.050 in. lift, and 0.510/0.520 in. lift |
| Rockers: |
Trick Flow roller, 1.5:1 |
| Headers: |
1 3/4 in. primaries, with 3 in. exhaust and Flowmaster mufflers |
| Pistons: |
KB hypereutectic, 12 cc dish |
| Rods: |
Trick Flow forged, 5.7 in. |
| Crank: |
Trick Flow forged |
| Distributor: |
MSD Billet with 6AL ignition |
| Comp. Ratio: |
10.0:1 |
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| MAX HP: |
460 @ 6000 |
| MAX Torque: |
451 @ 5000 | |
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