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

In Stock

$1,969.00

Chevy LM-7/LS 347CI Short Block +3.2cc Flat Top Pistons 24 Tooth

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Description

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

Remanufactured: 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 muscle cars 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.