BluePrint Engines 396CI Stroker Crate Engine | Small Block GM Style | Dressed Longblock with Fuel Injection | Aluminum Heads | Roller Cam
Part #: BP3961CTF
IT ALL COMES DOWN TO RESULTS
We make sure we hit our target horsepower and proper torque with every crate engine. We use an advanced computerized balancer 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.
BRAGGING RIGHTS INCLUDED!
A Comprehensive, dyno-generated printout showing these critical specs will accompany your delivered engine. 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 dyno results! Recommended Fuel: 91 Octane
The satisfaction of our customers is our highest priority at BluePrint Engines. We use quality components to balance your engine's rotating assembly within two grams of spec. We dyno test your crate engine and certify that it's ready to deliver horsepower and torque. We give your BluePrint engine the industry's best-in-class warranty for 30 months or 50,000 miles — with the extra confidence only BluePrint can provide. Our warranty applies to individual or professional installations, is fully transferable, and covers engines worldwide.
- HP & Torque: 491 HP / 509 FT LBS
Compression Ratio: 10.4:1
Hydraulic Roller Cam
NEW BluePrint Cast Iron Block
Manufactured and Machined in the USA!
Align honed main bearing bore
Cylinders honed on computer-controlled machine to within .0002 straightness and roundness
Cylinders are sonic tested for thickness
1-Piece Rear Main Seal
Mech fuel pump provision: Yes
Passenger Side Dipstick
- Drilled and tapped for clutch linkage
- New BluePrint Forged Crankshaft
3.875 " Stroke
Forged I-beam 6.000" connecting rods
Internal Front/ External Rear
- BluePrint Aluminum Cylinder Heads - HP8103
2.08" intake/1.60" exhaust valves
220cc intake/67cc exhaust runners
- Cam Type: Roller
.544 Intake / .555 Exhaust
230 Intake / 236 Exhaust duration
@ .050, 110° lobe separation angle
- 34 degrees total at 3500 RPM
- Aluminum intake manifold
Valve covers, oil pan and timing cover
Dyno tested and shipped with results
- 30 month / 50,000 mile
Not for use in pollution controlled vehicles.
Engine package does not include fuel pump.
Engine is configured to run in fuel only mode.
- The Aftermarket intake manifold installed on this engine may not be compatible with OEM accessory brackets that use intake mounted bosses.
- This engine features a true 4-inch bore, which mathematically yields 389 CID with a 3.875-inch stroke
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