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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 48 Items.
Crate Engine, GM 383 Stroker Stage 1, Long Block, Internal/External Engine Balance, Aluminum Heads, Each
Part Number: HPE-HP94
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, Chrysler 408 A Stroker, Short Block, Internal Balance, Mopar, Magnum, Each
Part Number: HPE-SP61
Estimated Ship Date: Today
Estimated Ship Date: Today
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: 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
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, Mid Dress Long Block, Aluminum Heads, Hydraulic Roller Camshaft, Chevy, 383, Each
Part Number: HPE-HP101M
Not Yet Reviewed
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: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 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
Short Block, Chrysler Gen III 392, Internally Balanced, +2cc Flat Pistons, Each
Part Number: HPE-SP97
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
CHEV 632 BB COMP/DYNO
Part Number: HPE-HP108C
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
Engine Assembly, Short Block, LM7, 5.7/347, 3.903 in. Bore, 3.622 in. Stroke, Forged Dished Pistons, I-Beam, Chevy, LS, Each
Part Number: HPE-SP76-B
Not Yet Reviewed
Estimated Ship Date: Mar 31, 2026 if ordered today
Estimated Ship Date: Mar 31, 2026 if ordered today
Engine Assembly, Short Block, LT1/LT4, 6.2L/376, 4.065 in. Bore, 3.622 in. Stroke, Forged Pistons, Two Valve Relief, 58 Tooth, Chevy, Gen V, LT, Each
Part Number: HPE-SP103
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 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: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
Chevy LM-7/LS 347CI Short Block +11cc Dished Pistons 24 Tooth
Part Number: HPE-SP76
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 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: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 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 24 Tooth +18cc Dish
Part Number: HPE-SP38-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: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
Short Block Engine, Chevy LS 408 Short Block, Remanufactured, Assembled, Internal Balance, 9.240 in. Deck Height, Chevrolet, 6.7L, Each
Part Number: HPE-SP36-B
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Chevy LS 408 Boosted/NOS Short Block 58 Tooth -18cc Dish
Part Number: HPE-SP31-B
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
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