ATK Engines HP99C GM Chevy Vortec 350 Complete Crate Engine 290HP

The ATK HP99C Chevy 350 Vortec complete engine is a solid small block street engine built to restore dependable V8 performance with a mild performance edge. Delivering 290 horsepower and 375 ft.-lbs. of torque, it combines a roller cam-equipped OE block, hypereutectic pistons, Vortec cast iron heads, a dual-plane intake, and complete top-end components for a ready-to-run package with strong low-end torque and reliable everyday drivability. Engine Specifications: HP: 290 TQ: 375 Block: OE roller block 2 bolt main 1pc seal 1996-2000 Bore/Stroke: up to 4.060" x 3.480" Displacement: 350CI Crankshaft: OE Reground external balance rear of crank/internal balance front of the crank Rods: OE powder metal 5.7" Pistons: Hypereutectic 9.4:1 compression Rings: Moly Camshaft: Hyd. roller Cam Specs: 191/194 @50 .414in/.428ex 111LSA Timing Chain: Single Roller Cylinder Heads: Vortec cast iron 64cc 1.94/1.50 Rocker Arms: Stamped steel 1.5 ratio Oil Pan: Rear sump 5qt (not for Chevelles with steering behind crossmember, some corvettes and 62-67 chevy II's) Oil Pump: Melling STD Volume Balancer: Internally balanced – PowerBond #PB1046-N Flexplate/Flywheel: Externally balanced – Pioneer #FRA-159 Intake Manifold: ATK HP dual plane dual plane Distributor: HEI (Iron Gear) Water Pump: OE long pump Carburetor: Quick Fuel 670CFM Vacuum secondary's electric choke #BR-67256 Fuel Pump: MUST RUN ELECTRIC FUEL PUMP-NO MECHANICAL FUEL PUMP PROVISIONS Spark Plugs: Autolite #605 Spark Plug Wires: 8mm

Highlights

• OE roller block 2 bolt main 1pc seal 1996-2000
• OE Reground external balance rear of crank/internal balance front of the crank
• 9.4:1 compression
• Quick Fuel 670CFM Vacuum secondary’s electric choke
• 4.060” x 3.480”

Specifications

• Crate Engine Type: Long Block
• Engine Displacement: 350 cu. in.
• Horsepower: 290 horsepower
• Compression Ratio: 9.4:1
• Torque: 375 ft./lbs.
• Camshaft Type: Hydraulic Roller
• Cylinder Head Material: Cast Iron
• Piston Material: Hypereutectic Aluminum
• Combustion Chamber Volume: 64cc
• Camshaft Duration (.050 in): 220° intake / 224° exhaust
• Camshaft Lift (in): .414 Intake / .428 Exhaust
• Bore x Stroke (in): 4.040" x 3.480"
• Carburetor Included: Yes
• Intake Manifold Included: Yes
• Distributor Included: Yes
• Connecting Rod Material: Powdered Metal
• Valve Covers Included: Yes
• Engine Balance: External
• Cylinder Heads Included: Yes
• Rear Main Seal Style: 1-piece
• Throttle Body Included: No
• Oil Pan Included: Yes
• Timing Cover Included: Yes
• Water Pump Included: Yes
• Harmonic Balancer Included: Yes
• Flexplate Included: No
• Flywheel Included: No
• Air Cleaner Included: No
• Spark Plugs Included: Yes
• Spark Plug Wires Included: Yes
• Computer Included: No
• Wiring Harness Included: No
• MFG. Part #: HP99C
• GTIN Code: 653517524943
• Recommended Fuel: 91 Octane
• Brand: ATK Engines

Emissions Notice

Emissions warning: this part is for vehicle engine changes, not direct oem engine replacements. In California, engine changes are legal when done in compliance with California bureau of automotive repairs (bar) engine change policy. For assistance, call bar referee at: (800) 622-7733. And see https://bar.Ca.Gov/consumer/smog_check_program/engine_changes. All customers must comply with federal epa mobile source enforcement memorandum no. 1a (and addendum) and all applicable state regulations when conducting engine changes. Improper installation and/or use of this part in California may subject the installer and/or owner to a $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and laws of all states for use of this engine change part on makes or models of vehicles that render them noncompliant with applicable state and/or federal emission laws with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine