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 Whether you need to swap belts...  Whether you need to swap belts or simply add tension to the blower belt, it's just a matter of loosening two bolts.  Both naturally aspirated and...  Both naturally aspirated and blown testing were fed with the same Demon 750-cfm Mighty Demon and used a MSD Pro-Billet distributor to light the fire. | Dyno Details | | ZZ383 Crate W/Vortech Gen II System | | Pulley combo | None | 6" crank, | 6" crank, | 6" crank, | | | 3.33" blower | 3.12" blower | 2.95" blower | | Advance | 36 degrees | 28 degrees | 28 degrees | 28 degrees | | Fuel | 91-octane | 91-octance | 91-octance | 91-octance | | Boost level | 0 | 6 | 7 | 7.5 | | Max lb-ft | 456 @ 4,500 | 543 @ 5,000 | 545 @ 5,000 | 571 @ 5,000 | | Max hp | 437 @ 5,500 | 598 @ 6,200 | 609 @ 6,500 | 636 @ 6,400 |
| Dyno Details | | ZZ383 W/Comp Cams Blower-Specific Camshaft & Vortech Gen II System | | Pulley combo | None | 6" crank, | 6" crank, | 6" crank, | 7.8" crank, | | | 3.33" blower | 3.12" blower | 2.95" blower | 3.33" blower | | Advance | 36 degrees | 28 degrees | 28 degrees | 28 degrees | 25 degrees | | Fuel | 91-octane | 100-octane | 100-octane | 100-octane | 100-octane w/splash of 114 | | Boost level | 0 | 7 | 8 | 9 | 11 | | Max ft-lb | 454 @ 4,600 | 552 @ 5,200 | 570 @ 5,200 | 596@ 5,500 | 658@ 5,400 | | Max hp | 448 @ 5,800 | 630 @ 6,500 | 660 @ 6,500 | 692 @ 6,500 | 746 @ 6,300 |
| Camshaft Specs | | Manufacturer | Comp Cams | | Part number | 08-301-8 | | Type | hydraulic-roller | | Valve lift at 0.050 | 0.520/0.540-inch intake/exhaust | | Duration at 0.050 | 244/252 degrees intake/exhaust | | Lash (cold) | 0.012/0.012 intake/exhaust | | Lash (hot) | 0.016/0.016 intake/exhaust | | Intake centerline | 106 degrees | | Lobe separation | 110 degrees |
| PRICE LIST | | MANUFACTURER | PART NUMBER | DESCRIPTION | PRICE | | Comp Cams | 08-301-8 | Xtreme Energy SFT | $246 | | Demon | 5402010GC | 750-cfm Mighty Demon | $520 | | Fel Pro | 1205 | Intake gaskets | $13 | | 1010 | Head gaskets | $35 | | GM Performance Parts | | 12498772 | ZZ383 crate engine | $4,790 | | 12496822 | Aluminum raised-runner intake | $290 | | 12497698 | Deluxe serpentine system | $754 | | 12497978 | Cover kit | $154 | | MSD Ignition | 85551 | Pro-billet distributor | $226 | | Vortech Engineering | Gen II T-trim system | 4GP218-038T | $3,579 |
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