This is a BluePrint Engines 454 cubic inch GM big block crate engine, built as a long block, rated at 460 horsepower and 479 lb-ft of torque. It is a torque-focused cruiser build using a cast iron block, cast crankshaft, hypereutectic pistons, and BluePrint aluminum cylinder heads, assembled as a long block ready for the buyer's own induction and accessories. Every BluePrint crate engine is dyno tested and ships with a dyno printout of its results.
Specifications:
- Displacement: 454 c.i. (7.4L)
- Horsepower: 460 HP
- Torque: 479 lb-ft
- Bore: 4.250 in
- Stroke: 4.000 in
- Compression ratio: 9.85:1
- Block: High-strength cast iron, 4-bolt main, standard deck, 1-piece rear main seal, mechanical fuel pump provision
- Crankshaft: Cast, 4.000 in stroke
- Connecting rods: OEM-type 6.135 in with 150,000 PSI bolts
- Pistons: Hypereutectic, dome, 26cc
- Cylinder heads: BluePrint aluminum PS8013, 119cc chamber, 2.30 in intake / 1.88 in exhaust valves, 316cc intake runners
- Camshaft: Hydraulic roller, .501 in intake / .510 in exhaust lift, 216/228 duration at .050, 112 deg LSA
- Configuration: Long block (no induction)
- Balance: Externally balanced, 42.5 oz
- Fuel: 91+ octane
- Part number: BP454CT
What's Included: Long block assembly with BluePrint aluminum heads and hydraulic roller cam. Also includes harmonic balancer BPP454E, BluePrint valve covers, dipstick, timing cover, oil pump, and oil pan. Carburetor, intake, ignition, and front accessories are not included on the long block.
Engine Platform: Built to the GM big block (BBC) platform. External balance requires a matching flywheel (BluePrint 14096987) or flex plate (399973). Use a distributor with a melonized iron or steel gear.
Prop 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information visit www.P65Warnings.ca.gov.
FAQ
What is included with the BP454CT long block?
It is a long block: the assembled block, rotating assembly, aluminum cylinder heads, and camshaft, plus a harmonic balancer, valve covers, timing cover, dipstick, oil pump, and oil pan. It does not include a carburetor, intake manifold, distributor, or front accessory drive.
How much power does the 454 make?
It is rated at 460 horsepower and 479 lb-ft of torque, and each engine ships with a dyno printout of its tested results.
Is this engine internally or externally balanced?
It is externally balanced with a 42.5 oz imbalance, so it requires an externally balanced flywheel or flex plate and the supplied balancer.
What fuel does it require?
BluePrint recommends 91 octane or higher for this 9.85:1 compression engine.

