Name: ATK SP61 Chrysler 408CI Magnum Short Block -23.5cc Dished Pistons
SKU: 12130231
Price: 2350.00 USD
Availability: InStock

ATK SP61 Chrysler 408CI Magnum Short Block -23.5cc Dished Pistons

Crate Engine Type:

Short Block

Engine Displacement:

6.7 liters

Piston Material:

Hypereutectic Aluminum

SKU: 12130231 Category: ATK Engines

Description

Engine Specifications:

Block: OE Magnum 1993-2001

Bore/Stroke: 4.040” x 4.000”

Displacement: 408CI

Crankshaft: Scat nodular iron internally balanced

Rods: Scat 4340 forged I beam with ARP 8740 bolts

Pistons: Hypereutectic -23.5cc dished

Compression Ratios: 62cc = 9.7:1 / 68cc = 9.2:1 / 72cc=8.9:1 (can vary due to deck height/gasket thickness)

Rings: Plasmamoly

Camshaft Bearings: Dura-Bond, installed and clocked to OEM position

Freeze Plugs: Brass, installed and sealed

Oil Galley Plugs: Installed and sealed

Recommended Components:

Balancer: Internal balance

Flexplate/Flywheel: Internal balance

Head Gasket: .048” or per application

Engine Info:

Oil: 10W30 Non synthetic for first 3000 miles

Oil Filter: Wix or K and N per application

Disclaimer:

The recommended components listed are ATK’s recommendations of parts to be used, applications vary and your build may need something different. Contact ATK for a recommendation if you’re not certain about a component to use. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. . ATK reserves the right to substitute parts used in engines if necessary.

KEY SPECS
MFG. Part #	SP61
Brand	ATK Engines
Crate Engine Type	Short Block
Engine Displacement	6.7 liters
Piston Material	Hypereutectic Aluminum
Crankshaft Material	Nodular Iron
Engine Balance	Internal
Rear Main Seal Style	2-piece
Oil Pan Included	No
Timing Cover Included	No