Crow Cams Holden EFI V8 Guide Plates
Holden EFI V8 Guide Plates — GP304
Eight guide plates for Holden 304 EFI/VN-head applications using 5/16-inch pushrods. They support the matching stud-mounted roller-rocker arrangement.
The VN-head application is distinct from the early-head GP308 plates. Check the head, rocker studs and pushrod alignment together.
Applications and compatibility
This part is listed for the following engine and vehicle applications where the Crow camshaft or valvetrain package calls for this exact part number:
- Holden Commodore VN–VR — 5.0L EFI V8
- Holden Commodore VS — 5.0L EFI V8
Compatibility is still determined by the complete cylinder-head and camshaft combination; vehicle model alone is not a substitute for checking the required spring, retainer, lock, lifter and rocker setup.
Installation checks
Confirm pushrod diameter, stud size, rocker geometry and cylinder-head machining before installation. Align every guide plate so the rocker tip remains correctly positioned on the valve throughout the lift cycle.
Associated Crow camshaft listings on BBT
This component is called up by Crow on applicable camshaft packages including:
- Crow Cams Holden V8 304/355 Carby Hydraulic - Tough Idle
- Crow Cams Holden V8 304/355 Carby Hydraulic Roller — 41315-8
- Crow Cams Holden V8 304/355 Carby Hydraulic Roller — 41330
- Crow Cams Holden V8 304/355 Carby Hydraulic Roller — 41433
- Crow Cams Holden V8 304/355 Carby Hydraulic Roller — 41571
- Crow Cams Holden V8 304/355 Carby Hydraulic Roller — 41719
The list above is representative rather than universal. Use the recommendation table on the exact camshaft page or contact BBT with the cam part number before ordering a complete valvetrain package.
Ordering and BBT support
Built by Boost & Tune can help confirm the correct Crow camshaft, springs, retainers, locks, lifters, rockers, timing components and supporting hardware as one compatible package. For modified cylinder heads, non-standard valves or an unknown existing combination, provide the engine specification and measured valvetrain details before ordering.
Product System
- Engine Parts
Vehicle Fitment
- Holden Commodore Vn Vr 5 0 Efi V8
- Holden Commodore Vs 5 0 Efi V8
Confirm chassis, engine, drivetrain and production-year compatibility before ordering.