Compstar LSX LS7 438 451 Rotating Assembly, 11.9:1 JE Pistons

LS7 LSX 438 439 440 445 451 Rotating Assembly, Compstar Forged Steel Crankshaft 4.100 Stroke, 6.125 H-Beam Rods, -5cc Flat Top JE Pistons, HP Piston Rings, H Bearings, Valve Pocket Fits 12 & 15 Degree LS Heads

Special Price $3,434.95 Regular Price $3,474.95

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⚠ PROP 65 WARNING

⚠ WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer. Please contact us to obtain a list of harmful chemicals. For more information, go to www.P65Warnings.ca.gov.

Description

Callies Compstar LSX rotating assembly kits offer quality and reliability you can count on. Featuring fully counterweighted forged crankshafts, H beam connecting rods with ARP2000 rod bolts, 2618 forged pistons, these kits are designed to make horsepower. Rated to support up to 1500 horsepower engine builds. Kit option upgrades are recommended for extreme engine builds. Higher horsepower applications please contact us for other kit options.

Compstar 4340 forged steel crankshaft 4.100 stroke, 8 Counterweight (short snout)

Compstar forged 4340 steel H-Beam rods with 7/16" ARP 2000 rod bolts, 6.125 length

JE 2618 forged pistons, .150 wall wrist pins, Round wire locks, Coated Skirts, 1.065 C/H (*Combination Valve Pocket fits 12 & 15 degree LS Heads)

JE Pro Seal Rings. 1.2mm Gas nitrided steel top ring, 1.5mm Napier second ring, with 3.0mm oil rings for power adders

Performance H series rod and main bearings

Rotating assembly comes unbalanced, balancing is required before installation.

Compression Ratio with 64cc heads 12.5:1

Compression Ratio with 68cc heads 11.9:1

Compression Ratio with 70cc heads 11.6:1

Specifications

More Information
CNC Part Number	CS-7074-JE
Price	$3,474.95
Manufacturer's Part Number	CS-7074-JE
Brands	Callies, Compstar, JE
Part Types	Engine Rotating Assembly Kit
Departments	Parts
Vehicle Make	Chevy LS
Balanced Assembly	No
Balance Type	Internal
Crankshaft Material	4340 Forged Steel
Crankshaft Stroke	4.100
Piston Brand	JE
Piston Type	Flat Top
Rod Length	6.125
Piston Material	2618 Forged
Custom Notices	⚠ PROP 65 WARNING

Compstar LSX LS7 438 451 Rotating Assembly, 11.9:1 JE Pistons

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