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Instruction Sheets for Part Number HPE-SP19-F
Charts & Guides for Part Number HPE-SP19-F
ATK High Performance Chevy LQ9 6.0L Short Blocks
Engine Assembly, Short Block, LQ9 6.0L, Hypereutectic Flat Top Pistons, Chevy, Small Block LS, Each
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Estimated Ship Date from Texas: Monday 10/19/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
SP19-F
Part Type:
Product Line:
Summit Racing Part Number:
HPE-SP19-F
UPC:
653517553134
Crate Engine Family:
Chevy LS
Actual Engine Displacement:
6.0L/364
Rear Main Seal Style:
1-piece
Crankshaft Material:
Cast steel
Piston Material:
Hypereutectic aluminum
Short Block Piston Style:
Flat top
Connecting Rod Material:
Powdered metal
Connecting Rod Beam Style:
I-beam
Engine Block Material:
Cast iron
Main Bolt Style:
6-bolt
Main Journal Type:
Chevy LS
Deck Height (in.):
9.240 in.
Engine Balance:
Internal
Oil Pan Included:
No
Timing Cover Included:
No
Harmonic Balancer Included:
No
Flexplate Included:
No
Flywheel Included:
No
Assembled:
Yes
Remanufactured:
No
Quantity:
Sold individually.
Notes:
GM 6.0L cast block with 4.030 in. bore and 3.622 in. stroke. Stock GM crankshaft with stock connecting rods and flat top, no valve relief pistons and 24 tooth reluctor wheel.
ATK High Performance Chevy LQ9 6.0L Short Blocks
ATK High Performance Chevy LQ9 6.0L short blocks with OE flat top pistons are great beginnings for your mild street build, or just as a replacement for a tired short block. ATK takes the hard work out of your project by selling blocks that are ready to complete yourself. Every great build needs a solid foundation. Start yours with one of ATK's Chevy LQ9 6.0L short blocks.
Technical specifications:
* Block: Seasoned 6.0L cast no. 364 or 184
* Bore/stroke: 4.030 x 3.622
* Year range: 2001-2007
* Displacement: 370 c.i.d.
* Crankshaft: OEM GM 3.622 in. stroke internally balanced 24-tooth reluctor wheel
* Connecting rods: OE GM forged powder metal 6.093 in. stock bolts
* Pistons: OE hypereutectic flat top with no valve reliefs
* Piston rings: Moly rings
* Compression ratio: 64cc = 10.7:1, 68cc = 10.2:1, 72cc = 9.8:1
* Camshaft bearings: Installed and clocked to OEM position
* Freeze plugs: Brass installed and sealed
* Oil galley plugs: Installed and sealed
* Weight: 285 lbs.
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