Eagle 12978 LS 5.3 329 Pro Competition Rotating Assembly, 10.1 Mahle Flat Top Pistons, 58t

GM LS Gen III & Gen IV 5.3L Vortec 5300 Rotating Assembly, Eagle 4340 Forged Steel Crankshaft 3.622 Stroke, Eagle 6.100 H-Beam Rods, Mahle Forged Flat Top Pistons -4.2cc, 58 Tooth Reluctor, Rings and Bearings Included

Special Price $2,617.95 Regular Price $2,667.95

Kit Upgrades

Internal Balanced Assembly B12978 + $250.00

ARP2000 Rod Bolts + $110.00

1/4" Blower Keyway + $90.00

Bore Size

3.800

CNC-T-Shirt

XXL

XXXL + $3.00

Qty

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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.

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Description

Kit will Fit GEN III 4.8L LR4, GEN IV 4.8L LY2 L20, GEN III 5.3L Vortec 5300, or LM7 L59 LM4, GEN IV 5.3L LMF LH6 LY5 LMG LC9 LH8 LH9. Customer is responsible for Correct reluctor wheel verification.

Eagle 4340 forged steel crankshaft
Eagle forged 4340 steel H-Beam rods with 7/16" ARP 8740 rod bolts
Mahle forged pistons with performance ring set
Performance rod bearings and main bearings
Rotating assembly kit is unbalanced, Internal balancing required before installation - Balanced kit p/n B12978

Compression Ratio with 61cc heads 10.8:1

Compression Ratio with 66cc heads 10.1:1

Specifications

More Information
CNC Part Number	ESP-12978
Price	$2,667.95
Sold As	Kit
Manufacturer's Part Number	12978
Brands	Eagle
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	3.622
Piston Brand	Mahle
Piston Type	Flat Top
Rod Length	6.100
Piston Material	Forged
Custom Notices	⚠ PROP 65 WARNING