19332532 - Chevrolet Performance Parts SP383, 383CID 435HP Crate Engine
This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.
The all new SP383 offers Big Block performance with a Small Block price tag.
Chevrolet Performance starts with the legendary Fast Burn cylinder heads and the 383cid bottom end, to offer an incredible 445 ft. lbs. of torque @ 4600 rpm with a smooth, linear delivery. The combination of a 3.800 steel crank and a stout .509/.528 lift hydraulic roller camshaft produces 435hp @ 5600 rpm, making the SP383 the benchmark by which all other 383cid small blocks will be measured.
GM's testing was completed using a GM single-plane intake manifold, a 750cfm Demon mechanical secondary carb, and 1-3/4 primary x 33 length headers with a 4 collector. A dual-plane intake manifold can be used, but will affect overall peak performance numbers by 15-20 HP.
Power: 435 HP @ 5600 RPM, 445 ft. lbs. of torque @ 4600 RPM
Displacement: 383 CID
Bore x Stroke: 4.00” x 3.80”
Compression Ratio: 9.6:1
Recommended Fuel: 92 Octane
Block: Cast Iron, 1 piece rear seal, 4-bolt main caps
Crankshaft: 4340 Forged Steel
Connecting Rods: HD Powdered Metal Steel
Pistons: Hypereutectic Aluminum
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .509” Intake / .528” exhaust
Cam Duration @ .050”: 222 deg. Intake / 230 deg. Exhaust
Lobe Separation: 112 Degree
Cylinder Heads: GM Fast Burn Aluminum Dual Bolt Pattern, 3/8” screw-in rocker studs
Combustion Chamber: 62cc
Valves: .200” Intake/ 1.55” Exhaust
Rocker Arms: Aluminum Roller, 1.5:1 Ratio
Valve Springs: 12625033
Maximum GM Recommended RPM: 6000
Ignition Timing: Base 10 degrees BTDC, 36 degrees total @ 4000RPM
Chevrolet Performance recommended converter stall 2400-2800
• Fully GM assembled long block
• Black Aluminum Valve covers
• GM Eliminator Single Plane Vortec Intake Manifold
• Oil pump, pick-up and oil pan
• 12-3/4” Auto Trans Flexplate
• 8” Harmonic Balancer
• Front timing cover
• Cast Iron Long Water Pump
• Oil Filter and Adapter
• Passenger Side RH Oil Dipstick and Tube
General Motors limited 2 year / 50,000 mile parts & labor warranty. Click Here to view or download warranty form.
Related Engines and Components:
Pace Professional Engine Dyno Break-In & Testing
Pace Fully Assembled SP383 Engine with As-Cast Trim
Pace Fully Assembled SP383 EFI Engine with As-Cast Trim
Pace Fully Assembled SP383 Engine with Black Trim
Pace Fully Assembled SP383 EFI Engine with Black Trim
Pace Fully Assembled SP383 Engine with Polished Trim
Pace Fully Assembled SP383 EFI Engine with Polished Trim
Pace Fully Assembled SP383 Engine with Orange Trim
Pace Fully Assembled SP383 EFI Engine Orange Trim
Pace Exclusive BP383 430HP Crate Engines
- Item Requires Shipping
- 448.0 lbs.
- W44.0000” x H39.5000” x L36.0000”
- FREE 48 State Shipping
Total Reviews (0)
Write the First Review!
You must login to post a review.
May We Suggest
- We don’t just want your business today. We want to EARN your business for LIFE!
- USA Owned, Operated & Employed
- Installers & Resellers Click Here to Apply
We Specialize In:
- GM LS Conversions
- Engine & Trans Combo Kits
- Unique Ready to Run Engines
- Have a question?
- to Email our Sales & Tech Staff
- 888-748-4655 Mon-Fri 8AM-6PM EST
- Click above for 24/7 Live Chat Service.