ATK High Performance Chevy LM7 5.7L/347 Short Blocks SP75

Overview

Brand:
ATK High Performance Engines
Manufacturer’s Part Number:
SP75
Part Type:
Short Block Engines
Product Line:
ATK High Performance Chevy LM7 5.7L/347 Short Blocks
Summit Racing Part Number:
HPE-SP75
UPC:
653517401565
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:
Flat top
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
Engine Balance:
Internal
Oil Pan Included:
No
Timing Cover Included:
No
Harmonic Balancer Included:
No
Flexplate Included:
No
Flywheel Included:
No
Assembled:
Yes
Quantity:
Sold individually.
Notes:
24X reluctor wheel. 3.2cc piston volume.

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.

Warranty