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Instruction Sheets for Part Number HPE-SP76-B
ATK High Performance Chevy LM7 5.7L/347 Short Blocks SP76-B
Part Number: HPE-SP76-B
ATK High Performance Chevy LM7 5.7L/347 Short Blocks
Engine Assembly, Short Block, LM7, 5.7/347, 3.903 in. Bore, 3.622 in. Stroke, Forged Dished Pistons, I-Beam, Chevy, LS, Each
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Overview
Brand:
Manufacturer's Part Number:
SP76-B
Part Type:
Product Line:
Summit Racing Part Number:
HPE-SP76-B
UPC:
00653517725210
Crate Engine Family:
Chevy LS
Actual Engine Displacement:
5.7L/347
Rear Main Seal Style:
1-piece
Crankshaft Material:
Cast iron
Piston Material:
Forged aluminum
Short Block Piston Style:
Dish
Connecting Rod Material:
Forged 4340 steel
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:
Compression options range from 8.9:1-9.5:1 depending on deck height and gasket thickness.
ATK High Performance Chevy LM7 5.7L/347 Short Blocks
ATK Chevy LM7 5.7L/347 short blocks provide a solid foundation for your build. Produced for the 1999-2007 trucks, LM7 engines are very popular engines to swap into musclecars and other LS swap vehicles. ATK High Performance Chevy LM7 5.7L/347 short blocks are built for naturally aspirated engines up to 700 hp.
Your ATK LM7 engine may include these components for optimal performance:
* Block: GM LM7 5.3L
* Bore/stroke: 3.903 x 3.622
* Displacement: 5.7/347 c.i.d.
* Crankshaft: OE reground 3.622 in., internally balanced 24-tooth
* Connecting rods: Scat Premium Pro 4340 forged I-beam with ARP 8740 bolts
* Pistons: Wiseco 2618 forged aluminum with coated skirts
* Piston rings: Wiseco GFX (alloy steel top ring)
* 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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