QUICK NOTESWhat's on TapWe get the inside scoop on Golen's LT1 creations.
CombosA 440-horse 383 stroker, and its 480-horse sibling
Price $5,999 for the 440, $6,899 for the 480
LT1 LONG-BLOCK SPECSBlock: 383ci LT1 fitted with four-bolt mains
Oiling: Melling high-volume pump,new factory 5-quart pan
Crank: Eagle cast steel, internally balanced
Rods: Scat 4340 forged, 6 inches long
Pistons: SRP forged, full-floating,11.5:1 compression
Rings: Speed Pro Plasma-Moly
Heads: 383/480: GM aluminum LT1, 54cc chamber, five-angle valve job, Stage2 porting, 190cc intake runners, ARP bolts, Manley stainless steel valves,2.00/1.56-inch, back-cut383/440: Same as above with 180cc intake runner
383/480Camshaft Type: Comp Cams hydraulic rollerOperating Range: 2,500-6,300 rpmLift: 0.585/0.544 inch, intake/exhaustDuration at 0.050: 236/244 degrees, intake/exhaustLobe Separation: 112 degreesTiming Set: GM LT4 Extreme-Duty rollerValvetrain: Comp Cams 1.6:1 Pro Magnum roller rockers on 71/416-inch studs;Comp retainers, locks, springs, guide plates, pushrods, and lifters
383/440Camshaft Type: Comp Cams hydraulic rollerOperating Range: 2,000-6,000 rpmLift: 0.536/0.544 inch, intake/exhaustDuration at 0.050: 224/230 degrees, intake exhaustLobe Separation: 112 degreesTiming Set: GM LT4 Extreme-Duty rollerValvetrain: Comp Cams 1.6:1 Pro Magnum roller rockers on 71/416-inch studs;Comp retainers, locks, springs, guide plates, pushrods, and lifter
Engine Notes:383/480Requires the following modifications, available from Golen Engine Service at extra cost:Factory LT1 intake manifold with ported runners and bored for 58mm throttleBody58mm throttle bodyAdjustable fuel pressure regulatorAftermarket headers and exhaustCustom computer modification (PCMForLess.com)30-pound Ford Motorsports fuel injectors
383/440Emissions-legal as long as all factory emissions components are installed andcustom computer tuning is performedFactory LT1 intake manifold can be used with light gasket-matching and boredfor 52mm throttle body52mm throttle bodyAdjustable fuel pressure regulatorAftermarket headers and exhaustCustom computer modification (PCMForLess.com)30-pound Ford Motorsports fuel injectors
| LT1 POWER CURVES |
| | 383/440 | 383/480 |
| Horsepower | 440 @ 6,000 rpm | 480 @ 6,300 rpm |
| Torque | 460 @ 4,100 rpm | 460 @ 4,500 rpm |