GPI Modified Lower Timing Gear for Gen V LT Engines - Dry Sump - GPI-1215
Precision-Modified Timing Gear for Aftermarket LT Cranks
The GPI-1215 Modified Lower Timing Gear is engineered specifically for Gen V LT dry sump engines running aftermarket crankshafts. Most aftermarket LT cranks feature a radiused transition between the snout and the front main journal, while the OEM lower timing gear is completely flat. This mismatch creates improper contact, excessive load on the gear face, and ultimately - cracking or catastrophic timing gear failure.
GPI solves this with a precision-machined chamfered inner radius that matches aftermarket crank geometry for perfect fitment and long-term reliability.
Product Overview
Designed from OEM-quality material and modified in-house, this gear eliminates a known weak point in high-performance LT builds. Whether you're assembling a road-race LT1, a boosted LT4, or any Gen V platform using a dry sump crankshaft upgrade, this modified gear ensures proper clearance, proper load distribution, and superior durability at high RPM.
Features
- OEM-quality lower timing gear with GPI performance modification
- Chamfered radius to properly clear aftermarket LT crankshaft snouts
- Prevents gear cracking, stress loading, and improper fitment
- Designed for dry sump Gen V LT engines
- Direct-fit upgrade for performance-built engines
Quick Specs
- Part Number: GPI-1215
- Application: Gen V LT engines (dry sump)
- Material: OEM-grade steel
- Modification: Chamfered inner edge for aftermarket crank compatibility
- Replaces: OEM lower timing gear with flat inner face
FAQs
What happens if you run an aftermarket crank with the OEM timing gear?
The OEM gear's flat inner surface contacts the crank's radius incorrectly, creating stress that often results in cracking or complete gear failure under load.
Is this gear required on all dry sump LT engines?
It is strongly recommended any time an aftermarket crankshaft with a radiused snout is used. OEM cranks do not require this modification.
Why Buy from Beefcake Racing?
Beefcake Racing supplies premium GPI engine components backed by proven technical expertise. Get guaranteed-fit performance parts for your LT build.
Call 1-855-827-7223 or email sales@beefcakeracing.com.
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