Product Details
BIG TORQUE FOR YOUR TRUCK
Got a pre-2000 GM Car or Truck with a tired Small-Block? Forget the rebuild and take your trusty truck’s capability to the next level with our big-torque 400/6.6L crate engine. Its extra displacement and unique parts are designed to build a wide, flat torque curve that maintains at least 400 lb.-ft. between 2,500 and 4,000 rpm. The 400 hp and 464 lb.-ft. of torque is power you simply won’t get with a stock-type rebuild.
Built for true truck strength, the engine starts with a cast-iron block with four-bolt main caps – a strength-enhancing feature most production truck blocks don’t have. We then fill the block with a HP crankshaft and a smooth hydraulic roller camshaft, then top it off with iron Vortec heads. Its 9.1:1 compression ratio is perfect for regular gasoline at all altitudes and engine loads.
We deliver the 400 sb with an aluminum intake manifold, ready for you to swap over the accessories from your tired engine.
TECH SPECS
Part Number: 2286NHPE
Engine Type: Chevy Small-Block V-8
Displacement (cu in): 400
Bore x Stroke (in): 4.125 x 3.750
Block: Cast-iron with 4-bolt main caps
Crankshaft: Cast Iron
Connecting Rods : HP steel using conn rod bolt
Pistons: Hypereutectic aluminum
Camshaft Type : Hydraulic roller
Camshaft Lift (in): .490 intake / .490 exhaust
Camshaft Duration: 252° intake / 258° exhaust
Cylinder Heads: Vortec iron; 64cc chambers
Valve Size (in): 1.940 intake / 1.500 exhaust
Compression Ratio: 9.1:1
Rocker Arms : Stamped steel
Rocker Arm Ratio: 1.5:1
Water Pump: Cast iron
Recommended Fuel: High Octane pump gas
Ignition Timing: 32° Total @ 4,000 rpm
Maximum Recommended rpm: 5,000
Balanced: External
Flexplate : 14.00"
Intake Manifold : Dual Plane Aluminum
INSTALLATION NOTES
• Requires addition of carburetor, ignition and starter (not included)
• Rochester Quadrajet or Holley 750-cfm carburetor recommended
• Comes with 14.00" externally balanced 168-tooth automatic transmission flexplate. Requires externally balanced flywheel for manual transmission.
• Has right-side oil dipstick
• Designed for pre-2000 street vehicles or any off-road vehicle
• Not intended for marine applications
NOTE: Distributor with melonized steel gear MUST be used with long-blocks and Partial engines with steel camshafts, or engine damage will occur.
California Proposition 65 Warning
Email or call with any questions!
