Availability
Engine Blocks & Parts
Engine Block, Cast Iron, 4-Bolt Mains, 4.125 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: DRT-31121222
Not Yet Reviewed
Bare Blocks, Dart Big M Sportsman Series, Cast Iron,10.200 in. Deck Height, 4.250 in,Bore,4-Bolt Main,2-Piece Rear Main Seal, Big Block, Chevy, Each
Part Number: DRT-31223355
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Cylinder Sleeve, Cast Iron, 4.600 in. Bore I.D., 0.075 in. Wall Thickness, 6.370 in. Length, Each
Part Number: DRT-32160311
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Bare Blocks, Dart Big M Series, Cast Iron,10.400 in. Deck Height, 4.500 in,Bore,4-Bolt Main,2-Piece Rear Main Seal, Big Block, Chevy, Each
Part Number: DRT-31223495
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Main Studs, Straight 4-Bolt Main, Chevy, 350, 400, Kit
Part Number: MIL-81115
Estimated Ship Date: Jun 12, 2026 if ordered today
Estimated Ship Date: Jun 12, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
ENGINE BLOCK SLEEVE
Part Number: DRT-32110112
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Bare Blocks, Dart Big M Series, Cast Iron, 10.200 in. Deck Height, 4.250 in. Bore, 4-Bolt Main, 2-Piece Rear Main Seal, Big Block, Chevy, Each
Part Number: DRT-31213354
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Main Studs, 2-Bolt, Ford, 351C, with Windage Tray, Kit
Part Number: MIL-81168
Estimated Ship Date: Jun 9, 2026 if ordered today
Estimated Ship Date: Jun 9, 2026 if ordered today
Cylinder Sleeve, Cast Iron, 3.990 in. Bore I.D., 0.185 in. Wall Thickness, 5.175 in. Length, Each
Part Number: DRT-32140111
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Bare Blocks, Dart Little M Series, Cast Iron, 9.025 in. Deck Height, 4.000 in. Bore, 4-Bolt Main, 2-Piece Rear Main Seal, Small Block, Chevy, Each
Part Number: DRT-31182125
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Cylinder Sleeve, Cast Iron, 4.490 in. Bore I.D., 0.185 in. Wall Thickness, 7.000 in. Length, Each
Part Number: DRT-32160231
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
ENGINE CYLINDERS, 99-06 TWIMCAM (EXC 06 DYNA), 4" CYLINDER KIT SIL
Part Number: SSY-910-0642
Not Yet Reviewed
Estimated Ship Date: Mar 25, 2026 if ordered today
Estimated Ship Date: Mar 25, 2026 if ordered today
ENGINE BLOCK SLEEVE
Part Number: DRT-32140223
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Engine Block SBF 302, SIAM, 8.200 x 4.125, CAST MC
Part Number: MLL-BPP12110341
Not Yet Reviewed
Estimated Ship Date: May 4, 2026 if ordered today
Estimated Ship Date: May 4, 2026 if ordered today
Main Studs, 2-Bolt Main, 12-Point, Black Burnished, Toyota, Lexus, 3.0L, 2JZ-GE, 2JZ-GTE, Kit
Part Number: WGT-P219011410BR
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Bare Blocks, Dart Big M Series, Cast Iron,10.400 in. Deck Height, 4.250 in,Bore,4-Bolt Main,2-Piece Rear Main Seal, Big Block, Chevy, Each
Part Number: DRT-31213395
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Bare Blocks, Dart Big M Series, Cast Iron,10.400 in. Deck Height, 4.250 in,Bore,4-Bolt Main,2-Piece Rear Main Seal, Big Block, Chevy, Each
Part Number: DRT-31223395
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Cylinder Sleeve, Cast Iron, 3.990 in. Bore I.D., 0.185 in. Wall Thickness, 6.100 in. Length, Each
Part Number: DRT-32110131
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
ENGINE BLOCK SLEEVE
Part Number: DRT-32110233
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
ENGINE BLOCK SLEEVE
Part Number: DRT-32140123
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Cylinder Sleeve, Cast Iron, 3.990 in. Bore I.D., 0.185 in. Wall Thickness, 5.575 in. Length, Each
Part Number: DRT-32140131
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
ENGINE BLOCK SLEEVE
Part Number: DRT-32140132
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
ENGINE BLOCK SLEEVE
Part Number: DRT-32140212
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
ENGINE BLOCK SLEEVE
Part Number: DRT-32140213
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Main Studs, 4-Bolt, Pontiac 389-455, Center Studs, Kit
Part Number: MIL-81222
Not Yet Reviewed
Estimated Ship Date: Jun 9, 2026 if ordered today
Estimated Ship Date: Jun 9, 2026 if ordered today
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