Availability
Engines & Components
Pro LS Rotating Assembly, 325 Cid, 3.780 bore, Standard 3.622 stroke, 58x, 6.125 rod, 2cc dome, 10.9:1 @ 61cc, 10.3:1 @ 65cc, File-Fit Ring, H Bearing
Part Number: SUM-R5836L7802
Not Yet Reviewed
Estimated Ship Date: Oct 30, 2026
Estimated Ship Date: Oct 30, 2026
Pro LS 4340 Rotating Assembly, 347 Cid., 3.903 bore, 3.622 stroke, 58x, 6.125 rod, 7cc dish, 9.7:1 @ 65cc, 9.4:1 @ 68cc, File-Fit Rings, H Bearings
Part Number: SUM-R5836L9037
Not Yet Reviewed
Estimated Ship Date: Oct 30, 2026
Estimated Ship Date: Oct 30, 2026
Pro LS 4340 Rotating Assembly, 367 Cid., 3.820 bore, 4.000 stroke, 58x, 6.125 rod, 12cc dish, 10:2 @ 61cc, 9.8:1 @ 65cc, File-Fit Rings, H Bearings
Part Number: SUM-R584082012
Not Yet Reviewed
Estimated Ship Date: Dec 7, 2026 if shipped by air
Estimated Ship Date: Dec 7, 2026 if shipped by air
Pro LS 4340 Rotating Assembly, 359 Cid., 3.780 bore, 4.000 stroke, 58x, 6.125 rod, 5cc dish, 10.9:1 @ 61cc, 10.4:1 @ 65cc, File-Fit Rings, H Bearings
Part Number: SUM-R58407805
Not Yet Reviewed
Estimated Ship Date: Dec 7, 2026 if shipped by air
Estimated Ship Date: Dec 7, 2026 if shipped by air
Pro LS Rotating Assembly, 332 Cid., 3.820 bore, Standard 3.622 stroke, 24X, 6.125 rod, 7cc dish, 9.9:1 @ 61cc, 9.4:1 @ 65cc, File-Fit Rings, H Bearing
Part Number: SUM-R2436L8207
Not Yet Reviewed
Estimated Ship Date: Oct 30, 2026
Estimated Ship Date: Oct 30, 2026
Pro LS Rotating Assembly, 332 Cid., 3.820 bore, Standard 3.622 stroke, 58x, 6.125 rod, 7cc dish, 9.9:1 @ 61cc, 9.4:1 @ 65cc, File-Fit Rings, H Bearing
Part Number: SUM-R5836L8207
Not Yet Reviewed
Estimated Ship Date: Oct 30, 2026
Estimated Ship Date: Oct 30, 2026
Pro LS 4340 Rotating Assembly, 347 Cid., 3.903 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-R2436L9033
Not Yet Reviewed
Estimated Ship Date: Nov 10, 2026
Estimated Ship Date: Nov 10, 2026
Cylinder Heads, Project X, Aluminum, Assembled, 64cc Chamber, 185cc Intake Runner, Chevrolet, Small Block, Pair
Part Number: PMX-91898S
Not Yet Reviewed
Estimated Ship Date: Dec 28, 2026 if ordered today
Estimated Ship Date: Dec 28, 2026 if ordered today
Cylinder Heads, Freedom Series Big Block Chevy Heads, Assembled, Aluminum, 119cc Chamber, 360cc Intake, Angle Plug, Chevrolet, Big Block, Pair
Part Number: PMX-2256
Not Yet Reviewed
Estimated Ship Date: Dec 28, 2026 if ordered today
Estimated Ship Date: Dec 28, 2026 if ordered today
Cylinder Heads, Aluminum, Assembled, 119cc Chamber, 320cc Intake Runner, Chevy, Big Block, Pair
Part Number: PMX-2216
Not Yet Reviewed
Estimated Ship Date: Dec 28, 2026 if ordered today
Estimated Ship Date: Dec 28, 2026 if ordered today
CYLINDER HEAD PAIR
Part Number: PMX-3341P
Not Yet Reviewed
Estimated Ship Date: Dec 28, 2026 if ordered today
Estimated Ship Date: Dec 28, 2026 if ordered today
CYLINDER HEADS
Part Number: PMX-3157
Not Yet Reviewed
Estimated Ship Date: Dec 28, 2026 if ordered today
Estimated Ship Date: Dec 28, 2026 if ordered today
XXTREME 260 LS3 Rectangle Large Bore Cylinder Heads; PAIR; Sping Option Solid Roller .700
Part Number: PMX-3168
Not Yet Reviewed
Estimated Ship Date: Dec 28, 2026 if ordered today
Estimated Ship Date: Dec 28, 2026 if ordered today
HYDRAULIC ROLER CAMS PAIR
Part Number: PMX-3151A
Not Yet Reviewed
Estimated Ship Date: Dec 28, 2026 if ordered today
Estimated Ship Date: Dec 28, 2026 if ordered today
CYLINDER HEADS
Part Number: PMX-9352
Not Yet Reviewed
Estimated Ship Date: Dec 28, 2026 if ordered today
Estimated Ship Date: Dec 28, 2026 if ordered today
Shocker 200 Ford FE solid roller springs 76 cc combustion camber 2.02/1.76 valves
Part Number: PMX-92336SR
Not Yet Reviewed
Estimated Ship Date: Dec 28, 2026 if ordered today
Estimated Ship Date: Dec 28, 2026 if ordered today
Cylinder Heads, Aluminum, Bare, 121cc Chamber, 370cc Intake Runner, Chevy, Big Block, Pair
Part Number: PMX-9370
Not Yet Reviewed
Estimated Ship Date: Dec 28, 2026 if ordered today
Estimated Ship Date: Dec 28, 2026 if ordered today
Cylinder Head, Shocker CNC, Assembled, 63cc Chamber, 185cc Intake Runner, 2.08/1.60 Valve Sizes, Flat Tappet, Aluminum, Mopar, Small Block LA, Pair
Part Number: PMX-9560
Not Yet Reviewed
Estimated Ship Date: Dec 28, 2026 if ordered today
Estimated Ship Date: Dec 28, 2026 if ordered today
SHOCKER SBM CYLINDER HEADS PR
Part Number: PMX-9561
Not Yet Reviewed
Estimated Ship Date: Dec 28, 2026 if ordered today
Estimated Ship Date: Dec 28, 2026 if ordered today
Cylinder Heads, Aluminum, Assembled, 84cc Chamber, 240cc Intake Runner, Chrysler, Dodge, Plymouth, Big Block, Pair
Part Number: PMX-9243
Not Yet Reviewed
Estimated Ship Date: Dec 28, 2026 if ordered today
Estimated Ship Date: Dec 28, 2026 if ordered today
SBC 225 CC PRO DESIGNED FULL CNC PORT AND CHAMBER 2.08/1.60 72CC CHAMBER 5 ANGLE VALVE JOB FULLY ASSEMBLED WIT
Part Number: PMX-92252
Estimated Ship Date: Dec 28, 2026 if ordered today
Estimated Ship Date: Dec 28, 2026 if ordered today
CYLINDER HEAD
Part Number: PMX-9604
Not Yet Reviewed
Estimated Ship Date: Dec 28, 2026 if ordered today
Estimated Ship Date: Dec 28, 2026 if ordered today
SBC 225 CC PRO DESIGNED FULL CNC PORT AND CHAMBER 2.08/1.60 64CC CHAMBER 5 ANGLE VALVE JOB FULLY ASSEMBLED WIT
Part Number: PMX-9225
Estimated Ship Date: Dec 28, 2026 if ordered today
Estimated Ship Date: Dec 28, 2026 if ordered today
Cylinder Heads, Project X, Aluminum, Assembled, 64cc Chamber, 215cc Intake Runner, Chevrolet, Small Block, Pair
Part Number: PMX-92198A
Not Yet Reviewed
Estimated Ship Date: Dec 28, 2026 if ordered today
Estimated Ship Date: Dec 28, 2026 if ordered today
Cylinder Heads, Aluminum, Bare, 121cc Chamber, 340cc Intake Runner, Chevy, Big Block, Pair
Part Number: PMX-9340
Not Yet Reviewed
Estimated Ship Date: Dec 28, 2026 if ordered today
Estimated Ship Date: Dec 28, 2026 if ordered today
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