This BluePrint Engines 400 cubic inch GM small block crate engine is a base dressed, fuel injected build rated at 500 horsepower and 510 lb-ft of torque. It uses a cast iron 4-bolt main block with a forged crankshaft, forged pistons, a hydraulic roller cam, and BluePrint HP8103 aluminum heads, and it comes with a Holley Sniper 2 EFI System, dual plane intake, and Pro Series distributor.
Specifications:
- Displacement: 400 c.i.
- Horsepower: 500 HP
- Torque: 510 lb-ft
- Bore: 4.125 in
- Stroke: 3.750 in
- Compression ratio: 10.3:1
- Block: High-strength cast iron, manufactured and machined in the USA, 4-bolt main, 4.125 in bore, 1-piece rear main seal, mechanical fuel pump provision, passenger-side dipstick, drilled and tapped for clutch linkage
- Crankshaft: BluePrint forged, 3.750 in stroke
- Connecting rods: 5.700 in, with 150,000 PSI bolts
- Pistons: Forged
- Cylinder heads: BluePrint aluminum HP8103, 64cc chamber, 2.08 in intake / 1.60 in exhaust valves, 220cc intake / 67cc exhaust runners, .500 raised port versus OEM
- Camshaft: Hydraulic roller, .555 in intake / .576 in exhaust lift, 236/242 duration at .050, 110 deg LSA
- Induction: Fuel injected: Holley Sniper 2 EFI System (BPP550-510-3XX)
- Balance: Internally balanced front, externally balanced rear
- Ignition timing: 10-16 degrees initial and total timing; 32-34 degrees at 3500 RPM
- Fuel: 91+ octane
- Part number: BP4002CTF
What's Included: This is a base dressed, fuel injected engine. BluePrint itemizes the following: dual plane satin aluminum intake manifold (BPP350VINT), Pro Series ready run distributor (BPP3503BK), Holley Sniper 2 EFI System (BPP550-510-3XX), BluePrint valve covers (BPP9518), BluePrint dipstick (BPP9420), timing cover, oil pump, and oil pan.
Engine Platform: Built to the GM small block (SBC) platform. BluePrint recommends electric fans producing 3000 cfm or more for engines 400 c.i. or less.
Compliance: BluePrint states this engine is not for EGR.
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 comes on the BP4002CTF base dressed engine?
BluePrint itemizes a dual plane satin aluminum intake manifold (BPP350VINT), a Pro Series ready run distributor (BPP3503BK), a Holley Sniper 2 EFI System (BPP550-510-3XX), BluePrint valve covers (BPP9518), a BluePrint dipstick (BPP9420), a timing cover, an oil pump, and an oil pan.
How much power does it make?
It is rated at 500 horsepower and 510 lb-ft of torque.
What EFI system does it use?
It uses the Holley Sniper 2 EFI System, part number BPP550-510-3XX, on a dual plane aluminum intake with a Pro Series ready run distributor.
What octane does it require?
It is a 10.3:1 engine that BluePrint lists for 91+ octane fuel.
Does it include a fuel pump, water pump, or harmonic balancer?
None of those are itemized for this base dressed variant, so plan to source them separately.
