ICT Billet LS External Bolt Kit

ICT Billet LS External Bolt Kit

The ICT Billet LS External Bolt Kit provides a comprehensive collection of external fasteners for LS Gen III and Gen IV engines. Featuring ICT-brand hardware manufactured to match factory wrench sizes, this kit simplifies engine assembly by supplying high-quality replacement bolts for many of the engine’s most commonly serviced external components.

Key Features

• Comprehensive external bolt kit for LS Gen III and Gen IV engines
• Grade 10.9 fasteners with JIS heads matching factory wrench sizes
• Flexplate bolts are Grade 12.9
• Made in the USA hardware, except sensor bolts (551430)
• Ideal for engine rebuilds, restorations, and new engine assemblies

Kit Includes

• Timing cover bolts (551432)
• Valley cover bolts (551433)
• Water pump bolts (551434)
• Rear main cover bolts (551435)
• Steam crossover bolts (551437)
• Bellhousing bolts (551652)
• Oil pan bolts (551680)
• Starter bolts (551681)
• Exhaust manifold bolts (551696)
• Oil pump and pickup bolts (551725)
• Engine mount bolts (551427)
• Fuel rail bolts (551428)
• Crankshaft and camshaft sensor bolts (551430)
• Throttle body bolts (551431)
• Ignition coil and bracket bolts (551426)
• Grade 12.9 flexplate bolts (551926, 6 pieces)

Specifications

• Compatible with LS Gen III and Gen IV engines
• Fastener grade: Grade 10.9 (Grade 12.9 flexplate bolts)
• JIS bolt heads match factory wrench sizes
• Made in the USA hardware, except imported sensor bolts (551430)

Fitment

• GM LS Gen III engines
• GM LS Gen IV engines

Important Notes

• Does not include balancer bolts.
• Does not include intake manifold bolts.
• Does not include valve cover bolts.
• Sensor bolts (551430) are imported; all other listed hardware is made in the USA.

Note: Always follow the manufacturer’s recommended torque specifications and tightening sequence during installation.