SP383 DELUXE
435 HP @5,600 RPM/ 445 LB-FT TORQUE @4,600 RPMprice: $9,199
part number: 19418657
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More power from our classic Small-Block stroker Chevrolet Performance’s big-torque SP383 Deluxe is more powerful than ever. We’ve added revised cylinder heads that incorporate a new, high-rpm valvetrain to help the SP383 Deluxe produce 435 horsepower and 445 lb-ft of torque. The new, lightweight aluminum cylinder head casting is based on the proven Fast Burn design, with large intake runners and 2.00-/1.55-inch valves. New beehive-style valve springs enable greater high-rpm performance and durability. They allow the SP383 Deluxe to rev higher, building more power to complement its low-rpm torque. The SP383 Deluxe is built with a brand-new block with four-bolt mains. It also features a forged-steel crankshaft, an aggressive hydraulic roller, camshaft, and durable, high-silicon pistons. Unique valve covers distinguish the engine from previous versions and it now includes a high-flow, aluminum intake manifold. Use the Holley 770-cfm four-barrel carburetor to make the most of the engine’s capability and achieve the listed horsepower and torque ratings. Your Chevrolet Performance dealer has everything you need to finish off the engine and get this small-block stroker running in your vehicle faster.
Part Number: 19332532 / 19355722
Engine Type: Chevy Small-Block V-8
Displacement (cu in): 383
Bore x Stroke (in): 4.005 x 3.800
Block: Cast-iron with 4-bolt main caps
Crankshaft: Forged steel
Connecting Rods: Heavy-duty PM steel
Pistons: Hypereutectic aluminum
Camshaft Type: Hydraulic roller
Valve Lift (in): .509 intake / .528 exhaust
Camshaft Duration (@.050 in): 222° intake / 230° exhaust
Cylinder Heads: Fast Burn aluminum; 62cc chambers
Valve Size (in): 2.000 intake / 1.550 exhaust
Compression Ratio: 9.6:1
Rocker Arms: Aluminum roller style
Rocker Arm Ratio: 1.5:1
Recommended Fuel: Premium pump
Ignition Timing: 36° Total at 4,000 rpm
Maximum Recommended rpm: 6,000
Flexplate: 12.750"
Balanced: External
• Requires addition of carburetor, ignition, fuel pump, thermostat housing, thermostat, and starter (not included)
• 435 horsepower rating achieved during GM testing with high-rise single-plane intake manifold and a 770-cfm carburetor with vacuum secondaries
• Chevrolet Performance dual-plane intake manifold may be used to avoid hood clearance problems, but peak power may decrease by approximately 15-20 horsepower
• Comes with 12.750" externally balanced 153-tooth automatic transmission flexplate. Requires externally balanced flywheel for manual transmission.
• Designed for pre-1976 street vehicles or any off-road vehicle
• Not intended for marine applications