ATK HP98C Chevy 350 Complete Engine 345HP

ATK HP98C Chevy 350 Complete Engine 345HP
• HP: 345
• TQ: 400
• Block: OE block 4 bolt main 1pc seal 1987-2000

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$4,505.00
Details
Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. . ATK reserves the right to substitute parts used in engines if necessary.
Specs
Part Number
HP98C
Block
• Block: OE block 4 bolt main 1pc seal 1987-2000
• Bore/Stroke: 4.040 x 3.480
• Displacement: 350
Short Block Features
• Crankshaft: OE Reground external balance rear of crank/internal balance front of the crank
• Rods: OE powder metal 5.7”
• Pistons: Hypereutectic 9.1:1 compression
• Rings: Moly
• Camshaft: Hyd. roller
• Cam Specs: 220/224 @50 .495in/.502ex 110LSA
• Timing Chain: Double roller
Camshaft Advertised Duration
-
Camshaft Duration @ .050"
220° Intake | 224° Exhaust
Camshaft Lift
.495 Intake | .502 Exhaust
Heads
• Cylinder Heads: ATK cast iron 76cc/165cc 1.94/1.50
• Rocker Arms: Stamped steel 1.5 ratio
Additional Parts Included
• Oil Pan: Rear sump 5qt (not for Chevelles with steering behind crossmember, some corvettes and 62-67 chevy II’s)
• Oil Pump: Melling high volume
• Balancer: PowerBond internal balance 8” #PB1046-N
• Flexplate/Flywheel: Pioneer #FRA-159 external balance 168 tooth
• Intake Manifold: ATK dual plane intake
• Distributor: HEI (Iron gear)
• Water Pump: OE long pump
• Carburetor: Quick Fuel 680CFM vacuum secondary’s with electric choke #HR-680
• Fuel Pump: Mechanical fuel pump
• Spark Plugs: Champion #RV12C
• Spark Plug Wires: 8mm

Engine Info/RecommendationsNOT INCLUDED

• Oil: Conventional / Non synthetic 10W30 with Comp Cam zinc additive #159 for first 3000 miles
• Oil Filter: Wix or K&N per application
• Timing: 34-36 Degrees
• Spark Plug Gap: .035”
• Firing Order: 18436572
• Octane: 91+
• Stall Converter: 2200-2500
• Exhaust: 1 5/8 Headers
Horsepower
345
Torque
400
Warranty
Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. . ATK reserves the right to substitute parts used in engines if necessary.
PROPOSITION 65 WARNING:
Crude oil, gasoline, diesel fuel and other petroleum products can expose you to chemicals including toluene and benzene, which are known to the State of California to cause cancer and birth defects or other reproductive harm.

For more information go to www.p65warnings.ca.gov.