Availability
Summit Racing Parts and Accessories
Pro LS 4340 Rotating Assembly, 364 Cid., 3.810 bore, 4.000 stroke, 24X, 6.125 rod, 12cc dish, 10:2 @ 61cc, 9.7:1 @ 65cc, File-Fit Rings, H Bearings
Part Number: SUM-R244081012
Not Yet Reviewed
Estimated Ship Date: Apr 16, 2026 if ordered today
Estimated Ship Date: Apr 16, 2026 if ordered today
Pro LS 4340 Rotating Assembly, 346 Cid., 3.898 bore, 3.622 stroke, 24X, 6.125 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings, H Bearings
Part Number: SUM-R2436L8983
Not Yet Reviewed
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Pro LS 4340 Rotating Assembly, 416 Cid., 4.070 bore, 4.000 stroke, 24X, 6.125 rod, 6cc dish, 11.5:1 @ 65cc, 10.9:1 @ 70cc, File-Fit Rings, H Bearings
Part Number: SUM-R24400706
Not Yet Reviewed
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Pro LS Rotating Assembly, 370 Cid., 4.030 bore, 3.622 stroke, 24X, 6.098 rod, 2cc Flat Top, 10.9:1 @ 65cc, 10.3:1 @ 70cc, File-Fit Rings, H Bearings
Part Number: SUM-R24360302
Not Yet Reviewed
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Pro LS 4340 Rotating Assembly, 383 Cid., 3.903 bore, 4.000 stroke, 58x, 6.125 rod, 5cc dish, 10.9:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings, H Bearings
Part Number: SUM-R58409035
Not Yet Reviewed
Estimated Ship Date: Jul 6, 2026 if ordered today
Estimated Ship Date: Jul 6, 2026 if ordered today
Pro LS Rotating Assembly, 326 Cid, 3.785 bore, Standard 3.622 stroke, 58x, 6.125 rod, 2cc dome, 10.9:1 @ 61cc, 10.4:1 @ 65cc, File-Fit Ring, H Bearing
Part Number: SUM-R5836L7852
Not Yet Reviewed
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Pro LS 4340 Rotating Assembly, 417 Cid., 4.075 bore, 4.000 stroke, 58x, 6.125 rod, 21cc dish, 9.9:1 @ 65cc, 9.5:1 @ 70cc, File-Fit Rings, H Bearings
Part Number: SUM-R584007521
Not Yet Reviewed
Estimated Ship Date: Jul 6, 2026 if ordered today
Estimated Ship Date: Jul 6, 2026 if ordered today
Pro LS 4340 Rotating Assembly, 346 Cid., 3.898 bore, 3.622 stroke, 24X, 6.125 rod, 7cc dish, 9.7:1 @ 65cc, 9.4:1 @ 68cc, File-Fit Rings, H Bearings
Part Number: SUM-R2436L8987
Not Yet Reviewed
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Pro LS Rotating Assembly, 332 Cid., 3.820 bore, Standard 3.622 stroke, 24X, 6.098 rod, 2cc dome, 11:1 @ 61cc, 10.5:1 @ 65cc, File-Fit ring, H Bearings
Part Number: SUM-R24368202
Not Yet Reviewed
Estimated Ship Date: Apr 28, 2026 if ordered today
Estimated Ship Date: Apr 28, 2026 if ordered today
Pro LS Rotating Assembly, 365 Cid., 4.005 bore, 3.622 stroke, 24X, 6.098 rod, 2cc Flat Top, 10.8:1 @ 65cc, 10.2:1 @ 70cc, File-Fit Rings, H Bearings
Part Number: SUM-R24360052
Not Yet Reviewed
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Engine Block, Pro LS, Bare, Cast Iron, 6-bolt Main Bolt Style, 6 Head bolt Pattern, 9.240 in. Std. Deck 4.125 in. Bore, GenIII/IV LS Chevrolet, Each
Part Number: SUM-150216
Not Yet Reviewed
Estimated Ship Date: May 18, 2026 if ordered today
Estimated Ship Date: May 18, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Summit Racing™ SPC Pro LS Engine Block SUM-150215
Not Yet Reviewed
Estimated Ship Date: Monday 3/30/2026
Engine Block, 400 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 350 Mains, 4.125 in. Unfinished Bore Diameter, 1-Piece Rear Main Seal
Part Number: SUM-150204
Not Yet Reviewed
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Crate Engine, High Torque, Iron Block, Non-Vortec Aluminum Heads, 6.2L/377, 9.1:1 CR, Hydraulic Roller, 1-Piece, Straight, Small Block, Chevy, Each
Part Number: XYZ-377HGTQ
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Automatic Transmission, GM Bellhousing, Automatic Valve Body, Standard Shift Pattern, GM, 4L80E, 2000-up, 4WD, 7 Bolt LS style, Each
Part Number: SUM-700471
Not Yet Reviewed
Estimated Ship Date: May 19, 2026 if ordered today
Estimated Ship Date: May 19, 2026 if ordered today
Automatic Transmission, Forward Shift Pattern, Automatic Valve Body, Buick, Olds, Pontiac, TH400, RWD, Each
Part Number: SUM-700401-1
Not Yet Reviewed
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Automatic Transmission, Early 6 bolt GM Bellhousing, Automatic Valve Body, Standard Shift Pattern, GM, 4L80E, 4WD, 97-99 Electronics, Each
Part Number: SUM-700473
Not Yet Reviewed
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Billet Aluminum Intake Manifold, Fuel Injected, CNC machined, 102mm Bore Size, Aluminum, Satin, Chevy, LS3, L92, Each
Part Number: SUM-226141S
Not Yet Reviewed
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Billet Aluminum Intake Manifold, Fuel Injected, CNC machined, 102mm Bore Size, Aluminum, Black, Chevy, LS3, L92, Each
Part Number: SUM-226141B
Not Yet Reviewed
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Pro LS Rotating Assembly, 370 Cid., 4.030 bore, 3.622 stroke, 24X, 6.125 rod, 2cc Flat Top, 10.9:1 @ 65cc, 10.3:1 @ 70cc, File-Fit rings, H Bearings
Part Number: SUM-R2436L0302
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Combo, Aluminum, Cylinder Heads, Manifold, Cam/Lifters, Gaskets, Bolts, SB Chevy
Part Number: SME-K-400-390
Estimated Ship Date: May 18, 2026 if ordered today
Not Available
Automatic Transmission, Early 6 bolt GM Bellhousing, Automatic Valve Body, Standard Shift Pattern, GM, 4L80E, RWD, 95-96 Electronics, Each
Part Number: SUM-700475
Not Yet Reviewed
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Pro LS 4340 Rotating Assembly, 364 Cid., 4.000 bore, 3.622 stroke, 58x, 6.125 rod, 12cc Dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit Rings, H Bearings
Part Number: SUM-R5836L00012
Not Yet Reviewed
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Estimated Ship Date: Monday 3/30/2026 if shipped by air
Pro LS 4340 Rotating Assembly, 417 Cid., 4.080 bore, 4.000 stroke, 58x, 6.125 rod, 6cc dish, 11.6:1 @ 65cc, 11:1 @ 70cc, File-Fit Rings, H Bearings
Part Number: SUM-R58400806
Not Yet Reviewed
Estimated Ship Date: Jul 6, 2026 if ordered today
Estimated Ship Date: Jul 6, 2026 if ordered today
Pro LS 4340 Rotating Assembly, 415 Cid., 4.065 bore, 4.000 stroke, 58x, 6.125 rod, 21cc dish, 9.9:1 @ 65cc, 9.5:1 @ 70cc, File-Fit Rings, H Bearings
Part Number: SUM-R584006521
Not Yet Reviewed
Estimated Ship Date: Jul 6, 2026 if ordered today
Estimated Ship Date: Jul 6, 2026 if ordered today
Pro LS Rotating Assembly, 325 Cid., 3.780 bore, Standard 3.622 stroke, 58x, 6.098 rod, 7cc dish, 9.7:1 @ 61cc, 9.3:1 @ 65cc, File-Fit Rings, H Bearing
Part Number: SUM-R58367807
Not Yet Reviewed
Estimated Ship Date: Jul 2, 2026 if ordered today
Estimated Ship Date: Jul 2, 2026 if ordered today
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