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#227BP38321SP
BluePrint BP38321SP GM 383 Short Block Plus Crate Engine, Forged Crank
$5,999.00
/each
Factory Shipped
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Key Specs
| Crate Engine Type | Short Block |
| Compression Ratio | 9.5:1 |
| Engine Displacement | 383 cu. in. |
| Camshaft Type | Hydraulic Roller Tappet |
| Piston Material | Forged Aluminum |
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Return PolicyBluePrint Engines BP38321SP Details
BluePrint Engines BP38321SP Details
GM 383 Short Block Plus
Overview
- HP & Torque: 432 HP / 450 FT LBS
- Compression Ratio: 9.5:1
- Forged Pistons
- Forged Crank
- Part #: BP38321SP
- 4 Bolt main
- 4.00" bore
- Passenger side dipstick
- Align honed main bearing bore
- New forged crankshaft, 3.75" stroke
- Forged pistons, 18CC Dish
- Forged rods with 150,000 PSI bolts
- Hastings moly rings
- Melling high volume oil pump
- Hydraulic roller cam
- Heavy duty double roller timing set
- Harmonic balancer
- Cam Type: Roller, Lift with 1.6 rockers .528 Intake .536 Exhaust, 221 Intake / 226 Exhaust duration @ .050 - 110 degree lobe separation
- 34 degrees total (at 3500 RPM)
- Oil pan and timing cover
- Brass freeze plugs
- Dyno tested - shipped with results
Bore and stroke combination makes this crate engine a 377ci displacement
Charts
Warranty Information (PDF)
Guides & Documents
Warranty Information
Warranty Information (PDF)
CARB Warning
Follow EPA, CARB, and state regulations for engine changes
CARB Warning
Follow EPA, CARB, and state regulations for engine changes
BluePrint Engines BP38321SP Specifications
BluePrint Engines BP38321SP Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | BP38321SP |
| Brand | BluePrint Engines |
| Crate Engine Type | Short Block |
| Compression Ratio | 9.5:1 |
| Engine Displacement | 383 cu. in. |
| Camshaft Type | Hydraulic Roller Tappet |
| Piston Material | Forged Aluminum |
| Crankshaft Material | Forged Steel |
| Carburetor Included | No |
| Intake Manifold Included | No |
| Distributor Included | Yes |
| Connecting Rod Material | Forged Steel |
| Valve Covers Included | Yes |
| Engine Balance | Internal/External |
| Cylinder Heads Included | No |
| Rear Main Seal Style | 1-piece |
| Throttle Body Included | No |
| Timing Cover Included | Yes |
| Oil Pan Included | Yes |
| Water Pump Included | No |
| Harmonic Balancer Included | Yes |
| Flexplate Included | No |
| Flywheel Included | No |
| Air Cleaner Included | No |
| Spark Plugs Included | No |
| Spark Plug Wires Included | No |
| Computer Included | No |
| Wiring Harness Included | No |
| GENERAL | |
| Torque | 450 ft./lbs. |
| Horsepower | 432 horsepower |
| Camshaft Duration (.050 in) | 221° intake / 226° exhaust |
| Camshaft Lift (in) | .528 intake / .536 exhaust |
| Bore x Stroke (in) | 4.000" x 3.750" |
| Warranty | None |
| Assembled | Yes |
| Camshaft Included | Yes |
| Block | 4 bolt main |
| Notes | Actual displacement 377 cubic inches. Horsepower numbers are with H8002K cylinder heads installed. Recommended oil for your BluePrint Crate Engine: 10W30, Non-Synthetic, Not for EGR |
Ratings & Reviews
Ratings & Reviews
Questions & Answers
4 Questions • 4 Answers
Questions & Answers
4 Questions • 4 Answers
Would this be a good solid engine for an '85 K20 square body truck that I'll tow and haul with sometimes?
by Eric
• a year ago
1 answer
View Answer
Could you stick ik 200 heads on this and a small blower like the 142 street one. Part numbers escape me right now. Wonder how well it would hold up. Forged is good right? Ha
by Hunter
• 7 years ago
1 answer
View Answer
What flex plate is required for this engine
by Joe
• 7 years ago
1 answer
View Answer
Will this engine work for towing with Chevy fast burn, aluminum vortech bolt pattern heads and the '98 Vortec intake and factory top end basically? Is the cam too big for Vortec?
by THOMAS
• 7 years ago
1 answer
View Answer
4 of 4 questions shown

