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ATK Engines High Performance Crate Engine Small Block Chevy 350ci / 345HP / 400TQ

059-HP98M

made in usa

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ATK Engines HP98M
$3,362.00
Core Charge: $460.00
High Performance Crate Engine
  • Small Block Chevy 350ci
  • 345HP / 400TQ
  • Mid Dress Engine
  • Free Shipping - Estimated to ship directly from the manufacturer on 06/29/21
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    Does ATK Engines HP98M fit your vehicle?

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    1971 GMC JIMMY

    • Liter: 5.7
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Block Cast # Mid-Dress H.P. Build 375HP/415Tq 4-Bolt Main, OE Crank, PM Rods, Flat Top Pistons, Hyd Roller Cam/Lifters, Alum Heads; VEGE Part # 136W0030R1; Mid-Dress Build 345 HP/ 400 Trq, 4 Bolt Mains, 9:1 Comp/ 91+ Octane; R/S Dipstick, 1 pcs. Rear Seal, New Iron Heads; Performance Engines May Need Upgraded Components Such As: Cooling, Exhaust, Fuel Delivery, Ignition, etc.; Applications Not Verified, Not Legal for Pollution Controlled Vehicles; Call ATK at 800-421-3746 for application questions
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: E

    1972 CHEVROLET C10 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Block Cast # Mid-Dress H.P. Build 375HP/415Tq 4-Bolt Main, OE Crank, PM Rods, Flat Top Pistons, Hyd Roller Cam/Lifters, Alum Heads; VEGE Part # 136W0030R1; Mid-Dress Build 345 HP/ 400 Trq, 4 Bolt Mains, 9:1 Comp/ 91+ Octane; R/S Dipstick, 1 pcs. Rear Seal, New Iron Heads; Performance Engines May Need Upgraded Components Such As: Cooling, Exhaust, Fuel Delivery, Ignition, etc.; Applications Not Verified, Not Legal for Pollution Controlled Vehicles; Call ATK at 800-421-3746 for application questions
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: H

    1971 CHEVROLET BROOKWOOD

    • Liter: 5.7
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Block Cast # Mid-Dress H.P. Build 375HP/415Tq 4-Bolt Main, OE Crank, PM Rods, Flat Top Pistons, Hyd Roller Cam/Lifters, Alum Heads; VEGE Part # 136W0030R1; Mid-Dress Build 345 HP/ 400 Trq, 4 Bolt Mains, 9:1 Comp/ 91+ Octane; R/S Dipstick, 1 pcs. Rear Seal, New Iron Heads; Performance Engines May Need Upgraded Components Such As: Cooling, Exhaust, Fuel Delivery, Ignition, etc.; Applications Not Verified, Not Legal for Pollution Controlled Vehicles; Call ATK at 800-421-3746 for application questions
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: -

    1980 CHEVROLET MALIBU

    • Liter: 5
    • SubModel: CLASSIC SPORT
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Block Cast # Mid-Dress H.P. Build 375HP/415Tq 4-Bolt Main, OE Crank, PM Rods, Flat Top Pistons, Hyd Roller Cam/Lifters, Alum Heads; VEGE Part # 136W0030R1; Mid-Dress Build 345 HP/ 400 Trq, 4 Bolt Mains, 9:1 Comp/ 91+ Octane; 5.7 Engine Upgrade, R/S Dipstick, 1 pcs. Rear Seal, New Iron Heads; Performance Engines May Need Upgraded Components Such As: Cooling, Exhaust, Fuel Delivery, Ignition, etc.; Applications Not Verified, Not Legal for Pollution Controlled Vehicles; Call ATK at 800-421-3746 for application questions
    • CUI: 305
    • Engine Type: V8 ( 5L / 305 )
    • Engine Vin: H

    1971 PONTIAC ACADIAN

    • Liter: 5
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Block Cast # Mid-Dress H.P. Build 375HP/415Tq 4-Bolt Main, OE Crank, PM Rods, Flat Top Pistons, Hyd Roller Cam/Lifters, Alum Heads; VEGE Part # 136W0030R1; Mid-Dress Build 345 HP/ 400 Trq, 4 Bolt Mains, 9:1 Comp/ 91+ Octane; 5.7 Engine Upgrade, R/S Dipstick, 1 pcs. Rear Seal, New Iron Heads; Performance Engines May Need Upgraded Components Such As: Cooling, Exhaust, Fuel Delivery, Ignition, etc.; Applications Not Verified, Not Legal for Pollution Controlled Vehicles; Call ATK at 800-421-3746 for application questions
    • CUI: 307
    • Engine Type: V8 ( 5L / 307 )
    • Engine Vin: -

    1979 CHEVROLET G10

    • Liter: 5
    • SubModel: BEAUVILLE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Block Cast # Mid-Dress H.P. Build 375HP/415Tq 4-Bolt Main, OE Crank, PM Rods, Flat Top Pistons, Hyd Roller Cam/Lifters, Alum Heads; VEGE Part # 136W0030R1; Mid-Dress Build 345 HP/ 400 Trq, 4 Bolt Mains, 9:1 Comp/ 91+ Octane; 5.7 Engine Upgrade, R/S Dipstick, 1 pcs. Rear Seal, New Iron Heads; Performance Engines May Need Upgraded Components Such As: Cooling, Exhaust, Fuel Delivery, Ignition, etc.; Applications Not Verified, Not Legal for Pollution Controlled Vehicles; Call ATK at 800-421-3746 for application questions
    • CUI: 305
    • Engine Type: V8 ( 5L / 305 )
    • Engine Vin: U

    1981 GMC P2500

    • Liter: 5.7
    • SubModel: VALUE VAN
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Block Cast # Mid-Dress H.P. Build 375HP/415Tq 4-Bolt Main, OE Crank, PM Rods, Flat Top Pistons, Hyd Roller Cam/Lifters, Alum Heads; VEGE Part # 136W0030R1; Mid-Dress Build 345 HP/ 400 Trq, 4 Bolt Mains, 9:1 Comp/ 91+ Octane; R/S Dipstick, 1 pcs. Rear Seal, New Iron Heads; Performance Engines May Need Upgraded Components Such As: Cooling, Exhaust, Fuel Delivery, Ignition, etc.; Applications Not Verified, Not Legal for Pollution Controlled Vehicles; Call ATK at 800-421-3746 for application questions
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: M

    1973 BUICK CENTURION

    • Liter: 5.7
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Block Cast # Mid-Dress H.P. Build 375HP/415Tq 4-Bolt Main, OE Crank, PM Rods, Flat Top Pistons, Hyd Roller Cam/Lifters, Alum Heads; VEGE Part # 136W0030R1; Mid-Dress Build 345 HP/ 400 Trq, 4 Bolt Mains, 9:1 Comp/ 91+ Octane; R/S Dipstick, 1 pcs. Rear Seal, New Iron Heads; Performance Engines May Need Upgraded Components Such As: Cooling, Exhaust, Fuel Delivery, Ignition, etc.; Applications Not Verified, Not Legal for Pollution Controlled Vehicles; Call ATK at 800-421-3746 for application questions
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: H

    1968 CHEVROLET C10 PICKUP

    • Liter: 5.3
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Block Cast # Mid-Dress H.P. Build 375HP/415Tq 4-Bolt Main, OE Crank, PM Rods, Flat Top Pistons, Hyd Roller Cam/Lifters, Alum Heads; VEGE Part # 136W0030R1; Mid-Dress Build 345 HP/ 400 Trq, 4 Bolt Mains, 9:1 Comp/ 91+ Octane; 5.7 Engine Upgrade, R/S Dipstick, 1 pcs. Rear Seal, New Iron Heads; Performance Engines May Need Upgraded Components Such As: Cooling, Exhaust, Fuel Delivery, Ignition, etc.; Applications Not Verified, Not Legal for Pollution Controlled Vehicles; Call ATK at 800-421-3746 for application questions
    • CUI: 327
    • Engine Type: V8 ( 5.3L / 327 )
    • Engine Vin: E

    1965 CHEVROLET CHEVELLE

    • Liter: 5.3
    • SubModel: SS
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Block Cast # Mid-Dress H.P. Build 375HP/415Tq 4-Bolt Main, OE Crank, PM Rods, Flat Top Pistons, Hyd Roller Cam/Lifters, Alum Heads; VEGE Part # 136W0030R1; Mid-Dress Build 345 HP/ 400 Trq, 4 Bolt Mains, 9:1 Comp/ 91+ Octane; 5.7 Engine Upgrade, R/S Dipstick, 1 pcs. Rear Seal, New Iron Heads; Performance Engines May Need Upgraded Components Such As: Cooling, Exhaust, Fuel Delivery, Ignition, etc.; Applications Not Verified, Not Legal for Pollution Controlled Vehicles; Call ATK at 800-421-3746 for application questions
    • CUI: 327
    • Engine Type: V8 ( 5.3L / 327 )
    • Engine Vin: -

    1973 CHEVROLET CHEVELLE

    • Liter: 5.7
    • SubModel: DELUXE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Block Cast # Mid-Dress H.P. Build 375HP/415Tq 4-Bolt Main, OE Crank, PM Rods, Flat Top Pistons, Hyd Roller Cam/Lifters, Alum Heads; VEGE Part # 136W0030R1; Mid-Dress Build 345 HP/ 400 Trq, 4 Bolt Mains, 9:1 Comp/ 91+ Octane; R/S Dipstick, 1 pcs. Rear Seal, New Iron Heads; Performance Engines May Need Upgraded Components Such As: Cooling, Exhaust, Fuel Delivery, Ignition, etc.; Applications Not Verified, Not Legal for Pollution Controlled Vehicles; Call ATK at 800-421-3746 for application questions
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: K

    1982 CHEVROLET K5 BLAZER

    • Liter: 5
    • SubModel: SILVERADO
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: Block Cast # Mid-Dress H.P. Build 375HP/415Tq 4-Bolt Main, OE Crank, PM Rods, Flat Top Pistons, Hyd Roller Cam/Lifters, Alum Heads; VEGE Part # 136W0030R1; Mid-Dress Build 345 HP/ 400 Trq, 4 Bolt Mains, 9:1 Comp/ 91+ Octane; 5.7 Engine Upgrade, R/S Dipstick, 1 pcs. Rear Seal, New Iron Heads; Performance Engines May Need Upgraded Components Such As: Cooling, Exhaust, Fuel Delivery, Ignition, etc.; Applications Not Verified, Not Legal for Pollution Controlled Vehicles; Call ATK at 800-421-3746 for application questions
    • CUI: 305
    • Engine Type: V8 ( 5L / 305 )
    • Engine Vin: H

    What cam is in this engine? Such as comp or howards.

    Asked by: Alane148
    ATK will not release the brand name, but here are the specifications; Camshaft: Hydraulic roller Cam Duration @ .050": Intake 220 / Exhaust 224 Cam Lift: Intake .495" / Exhaust .502" Lobe Separation Angle: 110lsa Timing Chain: Double roller
    Answered by: Rusty B
    Date published: 2018-08-17

    I currently have a 307 in my 83 cutlass, will this 350 switch out seamlessly?

    Asked by: Duke23boy
    No the 307 is part of the Oldsmobile engine family and does not share the same bolt patterns as the 350 Chevy.
    Answered by: ATK HP Engines
    Date published: 2018-06-06

    Will I need to run a stall convert. Are will the stock one work fine ???? 1978 LT1 350 /350 Looking for a well rounded cruz without have to turn wrenches every weekend , From research this will do the work just fine, Have a lot of vacuum acs. to power

    Asked by: Jjmc1
    Depending on what the application is, a stock torque converter will work with this engine. A converter with a little more stall will perform better.
    Answered by: Rusty B
    Date published: 2020-11-07
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