ATK High Performance Chevy LS 408 Short Blocks SP39-G4-B

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ATK High Performance Chevy LS 408 Short Blocks SP39-G4-B - Image 2

Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, Nitrous/Boost, 24 Tooth Reluctor, +4cc Flat Top Pistons, Each

$2,968.00

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Category: Short Block Engines

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Description

Description

Overview

Brand: ATK High Performance Engines

Manufacturer’s Part Number: SP39-G4-B

Part Type: Short Block Engines

Product Line: ATK High Performance Chevy LS 408 Short Blocks

Summit Racing Part Number: HPE-SP39-G4-B

UPC: 653517518362

Crate Engine Family: Chevy LS

Actual Engine Displacement: 6.7L/408

Rear Main Seal Style: 1-piece

Crankshaft Material: Forged 4340 steel

Piston Material: Forged aluminum

Short Block Piston Style: Flat top

Connecting Rod Material: Forged 4340 steel

Connecting Rod Beam Style: H-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: Yes

Quantity: Sold individually.

Notes: GM 6.0L Gen IV block with 4.030 in. bore and 4.000 in. stroke, -4cc flat top pistons and 24 tooth reluctor. Boost/nitrous ready with Manley forged 6.125 in. connecting rods, upgraded ARP main studs, ARP 2000 rod bolts, and Total Seal CS AP ring package with steel rings.

ATK High Performance Chevy LS 408 Short Blocks

These ATK High Performance Chevy LS 408 short blocks are made to handle some serious power. The foundation of any high performance engine is a rock-solid short block, so ATK designed and developed these to be just that. They feature a fully forged, balanced, and blueprinted rotating assembly that is available in a variety of configurations to fit naturally aspirated, nitrous, and forced induction builds, as well as those with 24 and 58-tooth cranks.

These ATK High Performance Chevy LS 408 short blocks include the following:

* GM LS Iron blocks
* Aligned and hone main bores
* Manley 4340 forged crankshaft
* 4.00 in. stroke
* Manley 4340 H-beam connecting rods
* Manley forged pistons

Applications

Make: CHEVROLET

Engine Type: V8

Engine Size: 6.7L/408

Engine Family: Chevy small block Gen III/IV (LS-based engines)

Application Notes: GM 6.0L Gen IV block with 4.030 in. bore and 4.000 in. stroke, -4cc flat top pistons and 24 tooth reluctor. Boost/nitrous ready with Manley forged 6.125 in. connecting rods, upgraded ARP main studs, ARP 2000 rod bolts and Total Seal CS AP ring package with steel rings.