07-13 Silverado 5.3L LC9 LH6 LH8 LH9 Aluminum Bare Engine Block Gen IV

07-13 Silverado 5.3L LC9 LH6 LH8 LH9 Aluminum Bare Engine Block Gen IV LS 4499

$569.99
Sale price  $569.99 Regular price 
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07-13 Silverado 5.3L LC9 LH6 LH8 LH9 Aluminum Bare Engine Block Gen IV

07-13 Silverado 5.3L LC9 LH6 LH8 LH9 Aluminum Bare Engine Block Gen IV LS 4499

$569.99
Sale price  $569.99 Regular price 
Item Details
ID: MJC 2604499
Type: Engine Block
Brand: GM, Chevrolet, GMC
Material: Aluminum
Bore Size: Standard
Importapart: 314-502-3104
Weight/Location: 115lbs / E0
Country of Origin: United States
Interchange Part Number: 12571048Siamese, Siamesed LS BlockLS Swap
Manufacturer Part Number: 12601900
condition_description: This is one of the most desired casting number (12601900) aluminum 5.3L GM block for high horsepower builds, as it has siamesed coolant jackets which makes it perfect for dry sleeving for larger displacement builds.
Estimated Shipping Enter your ZIP for a shipping estimate.

Item Description

07-13 Silverado 5.3L LC9 LH6 LH8 LH9 Aluminum Bare Engine Block Gen IV LS 4499



Bare engine block from a 2008 GMC Sierra 1500. All 8 cylinders measure out to standard bore (3.78"). The cylinders have average wear from use and some minor vertical scuffing in a couple cylinders, the worst of which has been detailed in the photos. All gasket mounting surfaces are in good shape with no visible damage. The lifter bores appear to be in good condition with no deep scratches, gouges or any other damages, and all 16 lifters came out with ease and no issues. The main journals are in good condition, show no signs of excessive heat, and had no spun or damaged bearings when disassembled. All threaded holes and bolt bosses appear to be in good condition and undamaged. Assembly comes as shown, and includes all five main bearing caps and bolts. This block should be checked by a professional machinist prior to use, as it may need honing, boring, resurfacing or other repair. The images are of the actual item you will receive.

Original equipment from the following vehicles with a 5.3L aluminum block V8 engine:

• 2007-2013 Chevrolet Silverado 1500 and GMC Sierra 1500 (LC9 engine code)
• 2007-2014 Chevrolet Suburban 1500 and GMC Yukon XL 1500 (LC9 engine code)
• 2007-2011 Chevrolet Avalanche (LC9 engine code)
• 2009-2010 Chevrolet Tahoe and GMC Yukon (LC9 engine code)
• 2009 Chevrolet Colorado and GMC Canyon (LH8 engine code)
• 2006-2008 Chevrolet Trailblazer (LH6 engine code)
• 2005-2006 Chevrolet Trailblazer EXT, GMC Envoy XL, and Isuzu Ascender (LH6 engine code)
• 2005-2009 GMC Envoy Denali (LH6 engine code)
• 2005-2009 Saab 9-7x (LH6 engine code)
• 2008-2010 Hummer H3 (LH8 engine code)

This is one of the most desired casting number (12601900) aluminum 5.3L GM block for high horsepower builds, as it has siamesed coolant jackets which makes it perfect for dry sleeving for larger displacement builds.

Freight shipping is available to any address within the lower 48 states. A $75 lift gate service fee will be added to all orders being shipped to an address without a loading dock or forklift. No shipping outside the contiguous 48 states. No P.O. boxes. No international shipping.

See the Compatible Vehicles table below for full fitment details.

Importapart is an auto recycler based in Hazelwood, Missouri. Every part we sell is a real, inspected OEM piece pulled from our own inventory — no aftermarket guesswork.

Questions on fitment or availability? Email Importapartsales@gmail.com or reach us through our contact page and we’ll get back to you within one to two business days. Hours are Mon–Fri, 9am–5pm CST.

We accept all major credit and debit cards and the other payment methods shown at checkout, processed securely through Shopify. Payment is due in full at the time of purchase, and sales tax is applied where required.

For programmed ECU/ECM/PCM orders, be sure to submit your VIN, odometer reading, and current part number at checkout so we can program the unit before it ships.

We ship to all 50 states. Most orders leave our Hazelwood, MO shop within 1–2 business days by FedEx, UPS, or USPS, and you’ll get tracking by email as soon as it’s on the way.

Heavy items like engines, transmissions, and body panels may ship freight — we note that on the listing when it applies. Alaska and Hawaii have a flat-rate surcharge calculated at checkout. We don’t ship to PO Boxes or outside the U.S.

Local pickup is available at our Hazelwood facility by appointment — call ahead to set a time.

Read the full shipping policy →

Returns are accepted within 60 days. A 20% restocking fee applies to standard returns, but it’s waived if we sent the wrong part, it arrived damaged, or it’s verified defective. Inspect your order on arrival and contact us within 7 days in those cases — we cover return shipping.

Programmed ECU/ECM/PCM modules are returnable only if defective, damaged, or incorrect. Because each one is programmed to the VIN you provide, we can’t take them back for compatibility issues from an incorrect VIN, odometer, or part number — double-check before you order.

Approved refunds are issued to your original payment method within 10 business days.

Read the full return policy →

Every part carries a 60-day limited warranty against defects from the date it’s delivered. It covers manufacturing defects, parts that fail to function as described, and internal mechanical or electrical failure under normal use.

Not covered: damage from improper installation, accident, misuse, or modification; normal wear and tear; labor, towing, or rental costs; racing, off-road, or commercial use unless stated; and items with broken warranty seals.

To file a claim, email Importapartsales@gmail.com with your order number, a description of the problem, and photos or video if possible. We’ll respond within one business day.

Read the full warranty policy →

Compatible Vehicles

Notes Make Model Year Trim Engine
Chevrolet silverado 1500 2014 high country crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2014 lt crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2014 lt extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2014 lt standard cab pickup 2-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2014 ltz crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 gas ohv naturally aspirated
Chevrolet silverado 1500 2014 ltz extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 gas ohv naturally aspirated
Chevrolet silverado 1500 2014 wt crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2014 wt extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2014 wt standard cab pickup 2-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet suburban 1500 2014 ls sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet suburban 1500 2014 lt sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet suburban 1500 2014 ltz sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet tahoe 2014 ls sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet tahoe 2014 lt sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet tahoe 2014 lt sport utility 4-door 5.3l 5328cc 325cu. in. v8 gas ohv naturally aspirated
Chevrolet tahoe 2014 ltz sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet tahoe 2014 police sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet tahoe 2014 ppv sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet tahoe 2014 ssv sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2014 base crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2014 base extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2014 base standard cab pickup 2-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2014 denali crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2014 sle crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2014 sle extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2014 sle standard cab pickup 2-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2014 slt crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2014 slt extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc yukon 2014 sle sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc yukon 2014 slt sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc yukon xl 1500 2014 sle sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc yukon xl 1500 2014 slt sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet avalanche 2013 base crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet avalanche 2013 black diamond ls crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet avalanche 2013 black diamond lt crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet avalanche 2013 black diamond ltz crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2013 ls crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2013 ls extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2013 lt crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2013 lt extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2013 lt standard cab pickup 2-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2013 ltz crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2013 ltz extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2013 wt crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2013 wt extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2013 wt standard cab pickup 2-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2013 xfe crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet suburban 1500 2013 ls sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet suburban 1500 2013 lt sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet suburban 1500 2013 lt sport utility 4-door 5.3l 5328cc 325cu. in. v8 gas ohv naturally aspirated
Chevrolet suburban 1500 2013 ltz sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet tahoe 2013 ls sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet tahoe 2013 lt sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet tahoe 2013 lt sport utility 4-door 5.3l 5328cc 325cu. in. v8 gas ohv naturally aspirated
Chevrolet tahoe 2013 ltz sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet tahoe 2013 ppv sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet tahoe 2013 ssv sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2013 sl crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2013 sl extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2013 sle crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2013 sle extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2013 sle standard cab pickup 2-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2013 slt crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2013 slt extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2013 wt crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2013 wt extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2013 wt standard cab pickup 2-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2013 xfe crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc yukon 2013 sle sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc yukon 2013 slt sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc yukon xl 1500 2013 sle sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc yukon xl 1500 2013 slt sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet avalanche 2012 base crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet avalanche 2012 ls crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet avalanche 2012 lt crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet avalanche 2012 ltz crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2012 ls crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2012 ls extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2012 lt crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2012 lt extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2012 lt standard cab pickup 2-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2012 ltz crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2012 ltz extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2012 wt crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2012 wt extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2012 wt standard cab pickup 2-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2012 xfe crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet suburban 1500 2012 base sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet suburban 1500 2012 ls sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet suburban 1500 2012 lt sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet suburban 1500 2012 ltz sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet tahoe 2012 base sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet tahoe 2012 base sport utility 4-door 5.3l 5328cc 325cu. in. v8 gas ohv naturally aspirated
Chevrolet tahoe 2012 ls sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet tahoe 2012 lt sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet tahoe 2012 ltz sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet tahoe 2012 ppv sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet tahoe 2012 ssv sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2012 sl crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2012 sl extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2012 sle crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2012 sle extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2012 sle standard cab pickup 2-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2012 slt crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2012 slt extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2012 wt crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2012 wt extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2012 wt standard cab pickup 2-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc sierra 1500 2012 xfe crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc yukon 2012 sle sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc yukon 2012 slt sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc yukon xl 1500 2012 sle sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Gmc yukon xl 1500 2012 slt sport utility 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet avalanche 2011 base crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet avalanche 2011 ls crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet avalanche 2011 lt crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet avalanche 2011 ltz crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2011 ls crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2011 ls extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2011 lt crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2011 lt extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2011 lt standard cab pickup 2-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2011 ltz crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2011 ltz extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2011 wt crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2011 wt extended cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2011 wt standard cab pickup 2-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated
Chevrolet silverado 1500 2011 xfe crew cab pickup 4-door 5.3l 5328cc 325cu. in. v8 flex ohv naturally aspirated