GM Performance Engine Block, 6.2L, LS3/L92, Aluminum, 9.240 in. Deck Height, 4.065 in. Cylinder Bore, Chevy, Each (PART #GMP-12673475)

GM Performance 6.2L LS3/L92 aluminum engine blocks are durable foundations for serious performance. Whether you're building a mild street engine or an Outlaw racing engine, starting your build with a strong base brings the assurance you'll make the power you need.

GM Performance 6.2L LS3/L92 blocks feature:

  • Block--strong, lightweight aluminum alloy casting with iron sleeves
  • Deep-skirt casting--the block's side extends below the crankshaft centerline
  • Production oiling system
  • Forged powered metal 6-bolt cross-bolted main bearing caps
  • 9.240 in. deck height
  • Use only LS1, LS6, LS2, L92/LS3-style cylinder heads
  • 4.065 in. finished bore (103.25mm)
  • Provisions for Active Fuel Management
  • Great for stroker cranks for even more cubes
  • Tested to over 500 horsepower

SPECIFICATIONS
Brand GM Performance
Manufacturer's Part Number 12673475
Part Type Engines, Bare Blocks
Product Line GM Performance 6.2L LS3/L92 Aluminum Engine Blocks
Main Journal Type Chevy LS
Engine Block Material Aluminum
Engine Block Style OEM
Engine Block Deck Height Standard deck
Deck Height (in.) 9.240 in.
Cylinder Bore Diameter 4.065 in.
Maximum Bore Diameter (in.) 4.085
Camshaft Location Standard
Engine Block Weight (lbs.) 110 lbs.
Main Bolt Style 6-bolt
Main Caps Included Yes
Main Cap Material Powdered metal
Main Cap Fasteners Included Yes
Main Bearings Included No
Rear Main Seal Style 1-piece
Finished Cylinder Bores No
Raised Cam Location No
Cam Bearings Included No
Freeze Plugs Included No
Remanufactured No
Quantity Sold individually.
Notes Block includes provisions for Active Fuel Management and iron sleeves.

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