GM Performance SP383 C.I.D EFI Long Block Crate Engines
Part Number:GMP-19420885
GM Performance SP383 C.I.D EFI Long Block Crate Engines (PART #GMP-19420885)
GM Performance's HT383E crate engine is an affordable and more powerful direct replacement for the tired 350 engine in your 1996-99 full-size GM truck or SUV. The larger displacement delivers up to 323 hp at 4,200 rpm and a whopping 444 lbs.-ft. of torque. It's extra power you won't get with a stock-type rebuild or reconditioned used engine. Like the standard HT383, this crate engine starts with a cast iron block with four-bolt main caps, a forged steel crankshaft, a smooth hydraulic roller camshaft, and a set of iron Vortec heads. Its 9.1:1 compression ratio is perfect for regular gasoline at all altitudes and engine loads. It also includes a new water pump.
The HT383E is designed to replace the L31 5.7L engine in half-ton models of the Silverado, Suburban, Tahoe, Sierra and Yukon. Simply swap the intake manifold, throttle body, exhaust manifolds, and other accessories from the original 350. It's an emissions-legal stroker for trucks!
TECH SPECS for the GM Performance SP383 c.i.d. EFI long block crate engine:
- Engine type: Chevy small block V8
- Displacement: 383 cu. in.
- Bore x Stroke (in.): 4.005 x 3.800
- Block: Cast iron with 4-bolt main caps
- Crankshaft: 4340 forged steel
- Connecting rods: Heavy-duty PM steel
- Pistons: Hypereutectic aluminum
- Camshaft type: Hydraulic roller
- Camshaft lift (in.): .431 intake / .451 exhaust
- Camshaft duration (@.050 in.): 196A intake / 206A exhaust
- Cylinder heads: Vortec iron; 64cc chambers
- Valve size (in.): 1.940 intake / 1.500 exhaust
- Compression ratio: 9.1:1
- Rocker arms: Stamped steel
- Rocker arm ratio: 1.5:1
- Water pump: Cast-iron
- Recommended fuel: Regular pump
- Maximum recommended rpm: 5,000
- Flexplate: 12.750 in.
- Balanced: External
SPECIFICATIONS |
|
| Brand | GM Performance |
| Manufacturer's Part Number | 19420885 |
| Part Type | Crate Engines |
| Product Line | GM Performance SP383 C.I.D EFI Long Block Crate Engines |
| Crate Engine Family | Chevy Small Block |
| Actual Engine Displacement | 6.3L/383 |
| Crate Engine Cylinder Head Material | Cast iron |
| Engine Block Material | Cast iron |
| Advertised Compression Ratio | 9.1:1 |
| Assembled | Yes |
| Engine Balance | External |
| Cam Style | Hydraulic roller, OE roller |
| Rear Main Seal Style | 1-piece |
| Intake Manifold Included | No |
| Cylinder Heads Included | Yes |
| Carburetor Included | No |
| Throttle Body Included | No |
| Distributor Included | No |
| Oil Pan Included | Yes |
| Valve Covers Included | Yes |
| Timing Cover Included | Yes |
| Water Pump Included | Yes |
| Harmonic Balancer Included | Yes |
| Flexplate Included | Yes |
| Flywheel Included | No |
| Air Cleaner Included | No |
| Spark Plugs Included | No |
| Spark Plug Wires Included | No |
| Computer Included | No |
| Wiring Harness Included | No |
| Water Pump Style | Long |
| Supercharger Included | No |
| Remanufactured | No |
| Quantity | Sold individually. |
| Notes | Designed for 1996-1999 full size GM truck or SUV. Includes a 12.750 in. externally balanced 153-tooth flexplate. Manual transmission applications will require an externally balanced flywheel. Not intended for use in marine applications. |
