Engine Blocks & Parts

MAIN GIRDLE, BILLET STEEL, CHEV 350, 2pc Rear Seal, Does Not incl Studs or Fasteners

Part Number: PQX-9035001

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Estimated Ship Date: Oct 2, 2025 if ordered today

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MAIN GIRDLE, BILLET STEEL, FORD 351W, Does Not incl Studs or Fasteners

Part Number: PQX-9035101

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Estimated Ship Date: Oct 2, 2025 if ordered today

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MAIN GIRDLE, BILLET STEEL, CHEV 400, Does Not incl Studs or Fasteners

Part Number: PQX-9040001

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Estimated Ship Date: Oct 2, 2025 if ordered today

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MAIN GIRDLE, BILLET STEEL, FORD 390FE/448 Stroker, incl PRW fasteners & hardware

Part Number: PQX-9044800

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Estimated Ship Date: Oct 2, 2025 if ordered today

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Main Caps, Billet Steel, 4-Bolt Conversion or Replacement, Straight, 326-400 cid, V8, Dowel Pinned, Drill Guide, Small Journal, Pontiac, Set of 3

Part Number: PQX-1738901

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Estimated Ship Date: Oct 2, 2025 if ordered today

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Main Caps, Billet Steel, 2-Bolt, Big Block FE, V8, 332-428 c.i.d., Ford, Set of 4

Part Number: PQX-1739001

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Estimated Ship Date: Oct 2, 2025 if ordered today

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CHEV 400, Stud Kit, Main Girdle, Includes 10ea, 1/2" Longer Studs, 7/16" -14/20 x 5.00" Studs, PRW Fasteners & Hardware.

Part Number: PQX-1000207

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Estimated Ship Date: Oct 2, 2025 if ordered today

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Main Cap Studs, 4140 Studs, Parallel Ground Washers, 12-Point Nuts, 2-Bolt Mains, 5.9L, 24V, L6, Cummins, Diesel, Dodge, Kit

Part Number: PQX-1000313

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Estimated Ship Date: Oct 2, 2025 if ordered today

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Main Studs, SCM-4140 Alloy Steel, 12-Point, Chevy, 6.6L, Duramax Diesel, LB7, LLY, Kit

Part Number: PQX-1000321

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Estimated Ship Date: Oct 2, 2025 if ordered today

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Main Studs, SCM-4140 Alloy Steel, 12-Point, 2-Bolt, Chevy, 6.6L, Duramax Diesel, LBZ/LMM, Kit

Part Number: PQX-1000323

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Estimated Ship Date: Oct 2, 2025 if ordered today

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Cylinder Sleeve Wet With O-Rings - Caterpillar 3500 - w/ Wide Flange Sleeve Ind., Gen., Marine 8-12-16 cyl

Part Number: MAH-2264557

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Cylinder Sleeve Wet With O-Rings - Cms. 159mm/6.250" Bore K19 (OE#4009231WS/4024773), 020"/.020" O.S Flange,

Part Number: MAH-2264563

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Estimated Ship Date: Sep 22, 2025 if ordered today

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BOLT MAIN CAP SIDE FOR RHS BL

Part Number: EDL-549302-1

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Estimated Ship Date: Sep 15, 2025 if ordered today

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NUT MAIN CAP 12PT FOR RHS BLO

Part Number: EDL-549303-1

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Estimated Ship Date: Sep 15, 2025 if ordered today

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WASHER FOR MAIN CAP STUDS RHS

Part Number: EDL-549304-1

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Estimated Ship Date: Sep 15, 2025 if ordered today

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WASHER FOR MAIN CAP SIDE BOLT

Part Number: EDL-549305-1

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Estimated Ship Date: Sep 15, 2025 if ordered today

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CYL SLEEVE ASSEMBLY

Part Number: MAH-IMKT545803T

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Sleeve Assembly Ring Set - Cummins, H4, H6, H672, HR4, HRC, H734, HR6, HRF, NHC4, NT4, N734,

Part Number: MAH-S41314

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Main Cap Studs, 4140 Studs, Parallel Ground Washers, 12-Point Nuts, 2-Bolt Mains, 5.9L, 12V, L6, Cummins, Diesel, Dodge, Kit

Part Number: PQX-1000311

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Estimated Ship Date: Oct 2, 2025 if ordered today

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Main Caps, Ductile Iron, 3-Center, Angled Outer Bolts, 4-Bolt, 400 Main, Chevy, Small Block, Set

Part Number: MIL-11180

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Nov 17, 2025 if ordered today

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Main Caps, Ductile Iron, 3-Center, Angled Outer Bolts, 4-Bolt, Pontiac, 421, 428, 455, Set

Part Number: MIL-11520

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Estimated Ship Date: Nov 17, 2025 if ordered today

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Main Caps, Angled Side Bolt, Ductile Iron, CNC Machined, Holden, V8, Kit

Part Number: MIL-11570

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Estimated Ship Date: Nov 17, 2025 if ordered today

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Main Studs, 2-Bolt Main, Chevy, Big Block, with Windage Tray, Kit

Part Number: MIL-81139

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Estimated Ship Date: Nov 17, 2025 if ordered today

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Main Cap Fasteners, Milodon Straight Bolt Caps, 8740 Chrome Steel Studs, 4130 Heat Treated Steel Washers and Nuts, Chevrolet, Big Block, Kit

Part Number: MIL-81140

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Estimated Ship Date: Nov 17, 2025 if ordered today

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Main Cap Fasteners, Two Bolt Caps with Windage Tray, 8740 Chrome Steel Studs, 4130 Heat Treated Steel Washers and Nuts, Holden, V8, Kit

Part Number: MIL-81146

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Estimated Ship Date: Nov 17, 2025 if ordered today

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