CHEVROLET Chevy small block Gen III/IV (LS-based engines) Engine Blocks & Accessories

Engine Hardware Kits

Part Number: DUR-FKC-7

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Estimated Ship Date: Nov 18, 2025 if ordered today

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Water Return Kit, Remote Mount, Motown II Block, Billet Aluminum, Black Anodized, -12 AN Pro-Lok Hose, Chevy, LS, Kit

Part Number: WRL-703849-K

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Estimated Ship Date: Nov 26, 2025 if ordered today

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Water Return Kit, Remote Mount, Motown II Block, Billet Aluminum, Black Anodized, -12 AN Stainless Braided Hose, Chevy, LS, Kit

Part Number: WRL-703850-K

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Rear Main Seal Housing, Aluminum, Natural, Chevrolet Performance LSX Block, Each

Part Number: NAL-19369274

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Estimated Ship Date: Feb 9, 2026 if ordered today

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Engine Hardware Kits

Part Number: DUR-FKC-6

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow if ordered today

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Engine Hardware Kits

Part Number: DUR-FKC-6B

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Estimated Ship Date: Tomorrow if ordered today

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Engine Block, LS Next, Bare Block, 4 in Bore, 9.240 Deck, 4-Bolt Mains, 1 Piece Seal, 0.375 in Extended Cylinder Barrels, Iron, GM LS-Series, Each

Part Number: DRT-31837111

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Estimated Ship Date: Jan 5, 2026 if ordered today

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SHP Pro block,SBC Ir/Blk LSNext SHP 9.240-4.000-LS Main w/steel cap

Part Number: DRT-31837121

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Engine Block, LS Next, Cast Iron, 4.125 in. Diameter Bore, 4-Bolt Mains, Chevy, LS, Each

Part Number: DRT-31837211

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Engine Block, LS Next, Cast Iron, 4.125 in. Diameter Bore, 4-Bolt Mains, Chevy, LS, Each

Part Number: DRT-31837221

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Bare Block, Cast Iron, LS Mains, 4.00 in. Bore, 9.24 in. Deck Height, Each

Part Number: DRT-31867112

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Estimated Ship Date: Jan 5, 2026 if ordered today

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SBC Alum LSNext 9.450"-4.000 LS Main

Part Number: DRT-31937121

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Bare Blocks, Dart LS Next Series, Aluminum, 9.750 Deck Height, 4 in Bore, Steel Main, 4-Bolt Mains, 1-Piece Rear Main Seal, LS Gen III/IV, Chevy

Part Number: DRT-31937142

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Engine Block, LS Next, Aluminum, 4.125 in. Diameter Bore, 4-Bolt Mains, Chevy, LS, Each

Part Number: DRT-31937211

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Estimated Ship Date: Jan 5, 2026 if ordered today

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ENGINE BLOCK

Part Number: DRT-31837211WW1

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Engine Block, LS Next, Aluminum, 4.000 in. Diameter Bore, 4-Bolt Mains, Chevy, LS, Each

Part Number: DRT-31937111

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Engine Block, LS Next, Aluminum, 4.000 in. Diameter Bore, 4-Bolt Mains, Raised Cam, Chevy, LS, Each

Part Number: DRT-31937112

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Estimated Ship Date: Jan 5, 2026 if ordered today

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SBC Alum LSNext 9.450"-4.000 LS Main raised cam

Part Number: DRT-31937122

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Engine Block, LS Next, Aluminum, 4.125 in. Diameter Bore, 4-Bolt Mains, Raised Cam, Chevy, LS, Each

Part Number: DRT-31937212

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Engine Block, LS Next, Aluminum, 4.125 in. Diameter Bore, 4-Bolt Mains, Chevy, LS, Each

Part Number: DRT-31937221

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Engine Block, LS Next, Aluminum, 4.125 in. Diameter Bore, 4-Bolt Mains, Raised Cam, Chevy, LS, Each

Part Number: DRT-31937242

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Bare Blocks, Dart LS Next Series, Aluminum, 9.240 in Deck Height, 4 in Bore, Steel Main, 4-Bolt Mains, 1-Piece Rear Main Seal, LS Gen III/IV, Chevy

Part Number: DRT-31947112

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Engine Block, LS Next, Aluminum, 4.125 in. Diameter Bore, 4-Bolt Mains, Raised Cam, Chevy, LS, Each

Part Number: DRT-31937222

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Engine Block, LS Next, Aluminum, 4.000 in. Diameter Bore, 4-Bolt Mains, Skirted, Chevy, LS, Each

Part Number: DRT-31947111

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Engine Block, SHP LS Next, Bare Block, 4.000 in Bore, 9.450 Deck, 4-Bolt Mains, Cast Aluminum, GM LS-Series, Each

Part Number: DRT-31947121

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Estimated Ship Date: Jan 5, 2026 if ordered today

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