Engine |
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Description |
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Small block Chevy V8 single cam pushrod.
"Gen III" LS1, 16 valves
Sequential electronic fuel injection.
Released in 1997 for the C5 Corvette. |
Block |
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319 Aluminum, heat treated to T5
6-bolt steel bearing caps
"large journal" main bearings
Grey-iron bore sleeves
weight 107 lbs |
Bore |
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3.8976 in |
Stroke |
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3.6620 in |
Total Displacement |
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5.66 liters, 345.69 ci (Chevy says, call it a
"350") |
Compression |
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10.2 : 1 |
Horsepower |
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330 (SLP published value for 2000 Firehawk) |
Redline RPM |
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6000 (computer limited) |
Carburetion |
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Sequential electronic port fuel injection |
Distributor |
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None. Coil per cylinder, computer fired |
Intake manifold |
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Dupont Nylon 66 ("composite" plastic/fiberglass)
tuned intake port length for maximum top end
port volume 200 cc |
Chamber Displacement |
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67.3 cc |
Heads |
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356 Cast Aluminum, heat treated to T6
Valve angle 15 degrees |
Valves |
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16, stainless steel |
Push rods |
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Sintered, forged PF1159M steel
"powdered metal"
length 6.1 in |
Lifters, Rockers |
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Hydraulic, roller
rocker arm ratio 1.7 : 1 |
Camshaft |
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Steel, rifle drilled for weight loss
intake lift .472 in, exhaust lift .479
duration: <unpublished, "conservative">The f-body cam is reported to be tamer than
the Corvette cam, accounting for GM's
published reduction in horsepower (305 vs. 345)
This is the only published difference between the
LS1 for f-body's and the 'vette y-body LS1.
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Pistons |
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Cast aluminum
compression height 34 mm, weight 434 grams |
Thermostat |
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195 degrees |
Firing order |
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1 - 8 - 7 - 2 - 6 - 5 - 4 - 3 |
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SLP Mods |
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Suspension |
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Bilstein, ultra performance system.
Large diameter front sway bar and bushings
Rear jounce bumper spacer
Oversized panhard bar, firmer bushings
Progressive rate compression coil springs front and back
Recalibrated Bilstein shock absorbers
Rear lower control arms with firmer bushings to reduce wheel hop under
heavy acceleration. |
Exhaust |
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Cat-back stainless steel, performance rated.
3" stainless steel intermediate pipe
3" over-the-axle pipe
"Power-Flo" Muffler, stainless, minimal back pressure,
"very distinctive exhaust note"
2.5" dual tailpipes, twin dual tips, 304 stainless |
Differential |
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Ratio |
3.42 : 1 |
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Auburn Gear, high-torque, performance rated, limited slip. |
American Axle Manufacturing aluminum cover for axle fluid distribution and
cooling
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Requires 80W-90 mineral axle lubricant (non-synthetic) with two ounces
of GM limited slip additive. AAM cover requires liquid gasket, use
Threebond 1216-AB or equivalent RTV Silicone Sealer. Stock
differential cover gasket should not be used.
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Hood |
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Composite, functional air scoops
Heat extractors
Underhood forced-air induction system |
Wheels |
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17" x 9 " Chrome plated aluminum, 5-spoke |
Tires |
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Firestone Firehawk P275/40ZR17 SZ50 17" |
Lubricant |
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Castrol "Syntek" 5W-30
a Conserving II oil with API service SH/CD rating |
Oil Filter |
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AC PF44 |
Air Filter |
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A1163C |
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