Horsepower & Torque: OEM
Cylinder Heads: 1987-1995 GM Iron Heads
Compression Ratio: OEM
Camshaft: Hydraulic Flat Tappet - .390 Intake / .401 Exhaust Lift and 194 Intake / 203 Exhaust Duration @.050-112° LSA
Pistons: Hypereutectic
Crankshaft: Cast Crank - 3.480" Stroke and 5.700" Rods
Fuel Recommendation: 87+ Octane
- Description
- Engine Specs
- Parts & Accessories
- Warranty
Description:
This engine is designed and manufactured to factory specs for the specified vehicles below. It's manufactured using tighter machining tolerances, higher quality components, and finer balancing of the rotating assembly to make this engine better than the original while still meeting the description of a “replacement” engine.
View the Application List HERE
Block:
- BluePrint Engines High Strength Cast Iron Block
- 4-Bolt Main
- 4.000" Bore
- 1-Piece Rear Main Seal
- Mech Fuel Pump Provision: Yes
- Passenger Side Dipstick
- Drilled and Tapped for Clutch Linkage
Rotating Assembly:
- Cast Crankshaft
- 3.480" Stroke
- 5.700" Connecting Rods
- OEM Spec Pistons
- Internally Balanced Front - Externally Balanced Rear
Cylinder Heads:
- 1987-1995 GM Iron Heads
Cam Specs:
- Hydraulic Flat Tappet
- OEM Spec Per Listed Vehicles
Ignition Timing:
- OEM Specifications
Also Includes:
- New Valve Covers
- Rear Sump Oil Pan
- Timing Cover
- Harmonic Balancer
Notes:
- Designed as factory replacement long block for specified vehicles and year ranges, using OEM specification parts. Customer to re-use existing intake manifold, ecu (if equipped), exhaust, fuel system etc. Modification or replacement of provided tinware, and minor accommodations such as dipstick location may be required.
- Specifically designed as an OEM spec engine to meet emissions requirements of the specified vehicles, to meet the criteria of "replacement engine" in all 50 states.
- Must verify with application list linked above for fitment.
Blocks
- BluePrint Engines High Strength Cast Iron Block
- 4-Bolt Main
- 4.000" Bore
- 1-Piece Rear Main Seal
- Mech Fuel Pump Provision: Yes
- Passenger Side Dipstick
- Drilled and Tapped for Clutch Linkage
Cylinder Heads
1987-1995 GM Iron Heads
Ignition Timing
Controlled by OEM ECU
Spark Plug
.035 in.
Firing Order
1,8,4,3,6,5,7,2
Rotating Assembly
- Cast Crankshaft
- 3.480" Stroke
- 5.700" Connecting Rods
- OEM Spec Pistons
- Internally Balanced Front - Externally Balanced Rear
Cam Specs
- Hydraulic Flat Tappet
- OEM Spec Per Listed Vehicles
Stall Converter
OEM
Also Includes
- New Valve Covers
- Rear Sump Oil Pan
- Timing Cover
- Harmonic Balancer
Notes
- Designed as factory replacement long block for specified vehicles and year ranges, using OEM specification parts. Customer to re-use existing intake manifold, ecu (if equipped), exhaust, fuel system etc. Modification or replacement of provided tinware, and minor accommodations such as dipstick location may be required.
- Specifically designed as an OEM spec engine to meet emissions requirements of the specified vehicles, to meet the criteria of "replacement engine" in all 50 states.
- Must verify with application list linked above for fitment.
Your BluePrint engine was dyno tested with the parts and specifications listed below. If you prefer to install a different part, your engine may not produce the horsepower recorded on your dyno sheet.
Parts & Accessories Specs
| Intake Manifold (Not Included) | N/A - Reuse OEM |
|---|---|
| Spark Plug (Not Included) | ACDELCO-CR43TS |
| Harmonic Balancer | BPP350 |
| Flexplate/Flywheel (Not Included) | BPP871006 |
| Fuel Recommendation | 87+ Octane |
| Recommended Service Oil | BPP10W30 |
| Recommended Oil Filter | BPP51061 |
| Total Oil Capacity with Production Oil Pan, and Correct Filter | 5 Quarts |
Header Partners:
- Click Here for our Header Partners and recommendations.
Better Than the Rest.
The satisfaction of our customers is our highest priority at BluePrint Engines. Every engine we build is assembled with premium components, balanced to within two grams, and dyno-tested to verify real horsepower and torque before it leaves our facility.
All BluePrint products include warranty protection designed specifically for how they're used. Our complete crate engines carry our industry-leading 30-month / 50,000-mile warranty, offering the confidence and peace of mind serious builders expect. Other BluePrint products—including bare blocks, marine engines, transmissions, race applications, and cylinder heads—feature warranty coverage tailored to their intended use and operating conditions.
For full terms and specific coverage by product category, download our warranty guide below. It contains complete details, limitations, and instructions for warranty registration and claims.
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Register NowEVERY BLUEPRINT ENGINE ACES THE DYNO TEST
We make sure we hit our target horsepower and proper torque with every crate engine. We use an advanced computerized balancer in our in-house dyno testing rooms to get our rotating assemblies within two grams, ensuring silky smooth power over the entire RPM range. That’s precisely why our engines sound and run better than our competitors.
All specs, zero speculation: A comprehensive, dyno-generated printout showing your critical engine specs will accompany your delivered engine — every time. No more guessing or wondering what your installed engine’s real-world peak horsepower and torque ratings actually are. Any doubters in the crowd? Simply flash ‘em your exact engine’s dyno results.