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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....
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. Give your ride a power transplant with ATK High Performance Engines!
Showing In Stock Items. Show All 33 Items.
Short Block Engine, LM7 383, Chevy LS, Forged Crank, Forged Piston, Dish, +15 Piston Head Volume, I-Beam Rods, 6-Bolt Main, Internal Balance, Each
Part Number: HPE-SP78
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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: Today
Estimated Ship Date: Today
Crate Engine, Ford 347 Stroker Stage 3, 450 HP, Long Block, External Engine Balance, Aluminum Heads, Each
Part Number: HPE-HP100C
Estimated Ship Date: Today
Estimated Ship Date: Today
Crate Engine, Chrysler 408 A Stroker, Short Block, Internal Balance, Mopar, Magnum, Each
Part Number: HPE-SP61
Estimated Ship Date: Today
Estimated Ship Date: Today
Crate Engine, Stage 3 Crate Engine, Long Block, 1-Piece Main Seal, Chevy, Small Block, 383, Each
Part Number: HPE-HP36C
Estimated Ship Date: Today
Estimated Ship Date: Today
Chevy LM-7/LS 347CI Short Block +3.2cc Flat Top Pistons 24 Tooth
Part Number: HPE-SP75
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Assembly, Short Block, LT1/LT4, 6.8L/416, 4.065 in. Bore, 4.000 in. Stroke, Forged Pistons, Two Valve Relief, 58 Tooth, Chevy, Gen V, LT, Each
Part Number: HPE-SP104
Not Yet Reviewed
Estimated Ship Date: Dec 17, 2025 if ordered today
Estimated Ship Date: Dec 17, 2025 if ordered today
Engine Assembly, Short Block, Big Block, 10.3L/632, 4.600 in. Bore, 4.750 in. Stroke, Forged Pistons, Flat Top, Chevy, Big Block Mark IV, Each
Part Number: HPE-SP108
Not Yet Reviewed
Estimated Ship Date: Dec 17, 2025 if ordered today
Estimated Ship Date: Dec 17, 2025 if ordered today
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
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Assembly, Stage 3 Crate Engine, Long Block, 1-Piece Main Seal, Chevy, Small Block, 383, Each
Part Number: HPE-HP33C
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Crate Engine, GM 383 Stroker, Long Block, Base, Internal/External Engine Balance, Aluminum Heads, Each
Part Number: HPE-HP107
Not Yet Reviewed
Estimated Ship Date: Dec 15, 2025 if ordered today
Estimated Ship Date: Dec 15, 2025 if ordered today
CHEV 632 BB COMP/DYNO
Part Number: HPE-HP108C
Not Yet Reviewed
Estimated Ship Date: Dec 17, 2025 if ordered today
Estimated Ship Date: Dec 17, 2025 if ordered today
Engine Assembly, Short Block, LT1/LT4, 6.8L/416, 4.065 in. Bore, 4.000 in. Stroke, Forged Pistons, Two Valve Relief, 58 Tooth, Chevy, Gen V, LT, Each
Part Number: HPE-SP105
Not Yet Reviewed
Estimated Ship Date: Dec 17, 2025 if ordered today
Estimated Ship Date: Dec 17, 2025 if ordered today
Engine Assembly, Short Block, Assembled, Internal Balance, 1-Piece Rear Main Seal Style, Dart SHP Block, 427 C.I.D., Ford, Each
Part Number: HPE-SP112
Not Yet Reviewed
Estimated Ship Date: Dec 17, 2025 if ordered today
Estimated Ship Date: Dec 17, 2025 if ordered today
Engine Assembly, Short Block, Stroker, 1-Piece Main Seal, Mopar, Small Block Magnum, 408, Each
Part Number: HPE-SP57
Not Yet Reviewed
Estimated Ship Date: Dec 15, 2025 if ordered today
Estimated Ship Date: Dec 15, 2025 if ordered today
Short Block, Chevrolet 383 Stroker, Internal/External Balanced, +5cc Flat Top Pistons, Each
Part Number: HPE-SP53
Estimated Ship Date: Today
Estimated Ship Date: Today
Chevy LS 408 Boosted/NOS Short Block 58 Tooth +10cc Dish
Part Number: HPE-SP26-B
Estimated Ship Date: Today
Estimated Ship Date: Today
Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, 24 Tooth Reluctor, +10cc Dish Pistons, Each
Part Number: HPE-SP37-G4
Not Yet Reviewed
Estimated Ship Date: Dec 17, 2025 if ordered today
Estimated Ship Date: Dec 17, 2025 if ordered today
Chevy LS 408 Boosted/NOS Short Block 24 Tooth -10cc Dish
Part Number: HPE-SP37-B
Not Yet Reviewed
Estimated Ship Date: Dec 15, 2025 if ordered today
Estimated Ship Date: Dec 15, 2025 if ordered today
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