Availability
Engine Blocks & Parts
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
Not Yet Reviewed
Estimated Ship Date: May 19, 2026 if ordered today
Estimated Ship Date: May 19, 2026 if ordered today
BTR 4 TO 6 BOLT CONVERSION FOR DART BLOCKS
Part Number: BTC-BTR426D
Not Yet Reviewed
Estimated Ship Date: Apr 2, 2026 if ordered today
Estimated Ship Date: Apr 2, 2026 if ordered today
Sleeve Assembly Ring Set - Int.Trac.152 cid(2.5L) 4 cyl 3.375 in./85.7mm Overbore Conversion
Part Number: MAH-S41038
Not Yet Reviewed
Estimated Ship Date: Apr 1, 2026 if ordered today
Estimated Ship Date: Apr 1, 2026 if ordered today
Main Caps, Billet Steel, 4-Bolt Conversion or Replacement, Straight, 421-455 cid, V8, Dowel Pinned, Drill Guide, Large Journal, Pontiac, Set of 3
Part Number: PQX-1745501
Not Yet Reviewed
Estimated Ship Date: May 15, 2026 if ordered today
Estimated Ship Date: May 15, 2026 if ordered today
Sleeve Assembly Ring Set - Buda Overbore Conversion 153 cid (2.5L) 4 cyl 3.438in./87.33mm Engine. Case
Part Number: MAH-S41010
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Engine Block, Bowtie, Cast Iron, 4.494 in. Bore, 9.800 in. Deck, Chevy, Big Block Gen V, Each
Part Number: NAL-19212191
Estimated Ship Date: Jul 14, 2026 if ordered today
Estimated Ship Date: Jul 14, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Summit Racing™ SPC Big Block Chevy Engine Block SUM-150210
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Engine Block, Cast Iron, 4-Bolt Mains, 4.494 in. Diameter Bore, 1-Piece Rear Main Seal, Chevy, Big Block, Each
Part Number: NAL-19212192
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Block, Bare, Cast Iron, 4-Bolt Mains, 4.494 in. Diameter Bore, 2-Piece Rear Main Seal, 10.200 in. Tall Deck, Chevy, Big Block, Each
Part Number: NAL-19212194
Estimated Ship Date: Today
Estimated Ship Date: Today
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