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45 Results Found For "rocker"

ATK High Performance Engines was founded in 1936 and continues to set new standards for remanufactured high performance engines. ATK was the first to offer a “new...

ATK High Performance Engines was founded in 1936 and continues to set new standards for remanufactured high performance engines. ATK was the first to offer a “new car” style warranty with its engines—an exclusive 24-month/unlimited mile warranty on every engine! And the company is dedicated to helping you set new standards on the street or track, too. ATK offers its GM, Ford, and Chrysler performance engines in three stages to help you achieve your specific performance goals. Shop Summit Racing for a full line of base, mid-level, and high performance ATK engines built with proven, high-quality components....

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Results 1 - 25 of 45

ATK High Performance 185cc SBF Aluminum Cylinder Heads HPSBF185

Cylinder Head, 185cc SBF, Aluminum, 58cc Chamber, 2.020 in. Intake/1.600 in. Exhaust Valves, 0.625 in. Max Lift, 3/8 in. Rocker Arm Studs, Ford, Each

Part Number: HPE-HPSBF185

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

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Estimated Ship Date: Jun 11, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

FLOTEK 185cc Small Block Ford Thumper Cylinder Heads 185-505

2 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/16/2026

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ATK High Performance GM 350 Vortec 290 HP Stage 3 Long Block Crate Engines HP99C

Crate Engine, GM 350 Small Block Stage 3, 290 HP, Long Block, External/Internal Engine Balance, Vortec Heads, Carburetor, Each

Part Number: HPE-HP99C

3.78 out of 5 stars ( 9 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATK High Performance GM 350 345 HP Stage 1 Long Block Crate Engines HP98

Crate Engine, Base Long Block, Cast Iron Heads, Hydraulic Roller Camshaft, Chevy, 350, Each

Part Number: HPE-HP98

3.77 out of 5 stars ( 13 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATK High Performance GM 350 Vortec 350 HP Stage 2 Long Block Crate Engines HP32M

Engine Assembly, Stage 2 Crate Engine, Truck, Long Block, 1-Piece Main Seal, Chevy, Small Block, 350, Each

Part Number: HPE-HP32M

4.0 out of 5 stars ( 9 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATK High Performance Ford 302 Stock Drop-In Long Block Crate Engines HP99F

Crate Engine, Ford 302 Stock Drop In, Long Block, Assembled, External Balance, Cast Iron Cylinder Heads, Each

Part Number: HPE-HP99F

3.94 out of 5 stars ( 32 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATK High Performance GM 350 330 HP Stage 1 Long Block Crate Engines HP291P

Crate Engine, GM 350, Stage 1, Long Block, Internal/External Engine Balance, Cast Iron Heads, Chevy, 350, Each

Part Number: HPE-HP291P

3.69 out of 5 stars ( 16 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATK High Performance Chevy LM7 5.3L 385 HP Long BLock Crate Engines HP97

Crate Engine, GM 5.3L, LM7, 385 HP, Long Block, Internal Engine Balance, Aluminum Heads, Each

Part Number: HPE-HP97

4.93 out of 5 stars ( 15 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATK High Performance Ford 347 Stroker 450 HP Stage 3 Long Block Crate Engines HP100C

Crate Engine, Ford 347 Stroker Stage 3, 450 HP, Long Block, External Engine Balance, Aluminum Heads, Each

Part Number: HPE-HP100C

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATK High Performance Ford 502 515 HP Stage 3 Long Block Crate Engines HP102C

Crate Engine, Ford 502 515 HP Stage 3 Long Block, Assembled, Hydraulic Flat Tappet, Internal Balance, Aluminum Heads, Ford, Big Block 385 Series, Each

Part Number: HPE-HP102C

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATK High Performance Chrysler 360 Magnum 320 HP Stage 1 Long Block Crate Engines HP73

Crate Engine, Mopar 360 Small Block Stage 1, 320 hp, 410 lbs.-ft. Torque, Long Block, Hydraulic Roller, External Engine Balance, Magnum Heads, Each

Part Number: HPE-HP73

3.44 out of 5 stars ( 9 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATK High Performance GM 383 Stroker 435 HP Stage 1 Long Block Crate Engines HP36

Engine Assembly, Stage 1 Crate Engine, Long Block, 1-Piece Main Seal, Chevy, Small Block, 383, Each

Part Number: HPE-HP36

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATK High Performance Ford 302 375 HP Stage 1 Long Block Crate Engines HP78

Engine Assembly, Stage 1 Crate Engine, Long Block, Ford, Small Block, 302, Each

Part Number: HPE-HP78

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATK High Performance GM 350 390 HP Stage 3 Long Block Crate Engines with EFI HP89C-EFI

Engine Assembly, Stage 3 Crate Engine with EFI, Long Block, 1-Piece Main Seal, Chevy, Small Block, 350, Each

Part Number: HPE-HP89C-EFI

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATK High Performance Chevy LQ4 6.0L 460 HP Long Block Crate Engines HP93

Crate Engine, Chevy LQ4 6.0L, Long Block, Internal Engine Balance, Aluminum Heads, Each

Part Number: HPE-HP93

4.4 out of 5 stars ( 10 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATK High Performance Chrysler 360 Magnum 350 HP Complete Long Block Crate Engines HP113C

Crate Engine, Chrysler 360 Magnum Complete Long Block, Remanufactured, Cast Iron Block and Cylinder Heads, 9.3:1 Compression, Dodge, Jeep, 5.9L, Each

Part Number: HPE-HP113C

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATK High Performance Ford 302 375 HP Stage 3 Long Block Crate Engines with EFIes with EFI HP78C-EFI

Crate Engine, Ford 302 375 HP Stage 3 Long Block with EFI, Assembled, Hydraulic Roller Tappet, External Balance, Aluminum Heads, Ford, Windsor, Each

Part Number: HPE-HP78C-EFI

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATK High Performance Chrysler 360 Magnum 350 HP Base Long Block Crate Engines HP113

CRATE ENGINE, Mopar 360 Mag 350+HP

Part Number: HPE-HP113

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATK High Performance Ford 347 Stroker 450 HP Stage 2 Long Block Crate Engines HP100M

Crate Engine, Ford 347 Stroker 450 HP Stage 2 Long Block, Assembled, Hydraulic Roller Tappet, External Balance, Aluminum Heads, Ford, Windsor, Each

Part Number: HPE-HP100M

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATK High Performance Chrysler 360 Magnum 320 HP Stage 3 Long Block Crate Engines HP73C

Crate Engine, Stage 3, Long Block, Assembled, External Engine Balance, Cast Iron Heads, Dodge, 5.9L, Each

Part Number: HPE-HP73C

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATK High Performance GM 350 345 HP Stage 2 Long Block Crate Engines HP98M

Crate Engine, Mid Dress Long Block, Cast Iron Heads, Hydraulic Roller Camshaft, Chevy, 350, Each

Part Number: HPE-HP98M

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Jun 11, 2026 if ordered today

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Estimated Ship Date: Jun 11, 2026 if ordered today

ATK High Performance Ford Truck 302 Drop-In Long Block Crate Engines HP99FT

FORD 302 64-86 TRUCK DROPIN

Part Number: HPE-HP99FT

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

ATK High Performance Chrysler 408 Stroker Magnum 465 HP Stage 3 Long Block Crate Engines HP46C-MAG

Crate Engine, Chrysler 408 Stroker Magnum 465 HP Stage 3 Long Block, Assembled, Hydraulic Roller Tappet, Internal Balance, Aluminum Heads, Dodge, 6.7L

Part Number: HPE-HP46C-MAG

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air