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Vehicle Info NeededICT BILLETPART NUMBER: 335-551902-TL01
551902-TL01 LS Gen 3 Iron Block to Gen 4 Timing Chain Guide Drill Template Tool LQ4 L33 LQ9
$5899
Ships on Sep 15, 2026
Lowest Price GuaranteeLS Gen 3 Iron Block to Gen 4 Timing Chain Guide Drill Template Tool LQ4 L33 LQ9
ICT Billet 551902-TL01 Features:
Drill Guide for LS Gen III Engines
Compatible with all GM Gen III LS series engines from 1999-2008
- Used to add the necessary mounting holes in your engine block to mount a gen IV style timing chain guide (GM #12626407)
- Requires the use of Letter H Drill Size (.266 in.) for M8-1.25 Mounting Bolts (Not Included)
- Includes: drill guide with mounting bolts
- ONLY compatible with Gen III LS Iron Blocks (LM7, LR4, LQ4, L59, LQ9)
The holes can be drilled all the way through the engine block, IF the crankshaft is not in the block. See the video on this listing to only partially drill the holes if your crankshaft is still installed in the engine block
Part TypeInstallation Media
BrandICT BILLET
Package Height1.0
Package Width6.0
Package Length8.0
Weight0.55 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part Number551902-TL01
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
