BluePrint Engines 496CI Stroker Marine Crate Engine | Big Block GM Style | Longblock | Iron Heads | Flat Tappet Cam
Part #: MBP4960CT
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
- HP & Torque: 460 HP / 515 FT LBS
Compression Ratio: 9.0:1
Cast Iron Heads
Flat Tappet Cam
Cast Steel Crank
- Hand picked seasoned block
Square and parallel decked
Align honed main bearing bore
Cylinders honed on computer controlled machine to within .0002 straightness and roundness
Cylinders are sonic tested for thickness
4.250" Bored .060" over
2-Piece Rear Main Seal
Mech fuel pump provision: Yes
- New BluePrint Cast steel crankshaft
Forged H-beam 6.385" connecting rods
- GM cast iron oval port cylinder heads with screw-in studs and guide plates
1.509 dia. Valve springs w/ damper. Hardened retainers & keepers. 2.25 swirl
polished intake valves, 1.88 swirl polished exhaust valves
Elgin hardened push rods
Long slot rockers with postitive lock adjusting nuts
- Cam Type: Flat Tappet
.544 Intake .547 Exhaust
226 Intake / 236 Exhaust duration
@ .050 - 112 degree lobe separation
- 34 degrees total at 3500 RPM
- Marine intake manifold
Chrome valve covers
Brass freeze plug
Dyno test results shipped with engine
- 12 month unlimited hour on pleasurecraft only. No warranty on commercial use.
- Replaces Standard Rotation engines only. Not available as reverse rotation.
BluePrint Engines recommends the use of a flame arrestor in marine applications, and advises checking local laws to ensure compliance with the United States Coast Guard Requirements for Ignition Protection & Fire Resistance.