Features:
- 1500-6500 RPM power band
- 4150 Square bore flange
- Optimized runner layout and constant cross sectional area - broad torque curve, best vehicle performance from 1500-6500 RPM
- Minimum carb flange height means it fits in vehicles with minimal or no hood modifications
- Great for carbureted or throttle body EFI street applications
- Cast aluminum construction and efficient casting design for light weight, consistent wall thicknesses and improved casting quality
- Weighs 15.14 lbs.
- Height (front) - 5.07" from front lifter valley cover to carb mounting flange
- Height (rear) - 6.14" from rear lifter valley cover to carb mounting flange
- Port size - 2.72" height x 1" wide
- Mounting flange gasket type - O-ring
- Includes Viton® O-rings - Viton® is a registered trademark of DuPont Performance Elastomers
Notes: All GM LS Gen III or IV engines equipped with LS1/LS2/LS6 style cathedral port cylinder heads. Includes mounting bolts & washers. NOTE: These Dual-Plane Intake Manifolds are NOT legal for sale or use on engines with pollution controlled equipment.
Instructions
Instructions - 199r10689rev.pdf
Emissions Warning
Federal and State regulations may restrict Product installation to pre-regulation (Model Year 1974 or earlier), or “Competition,” or “Racing” Vehicles. Competition or Racing Vehicles may be operated exclusively in
1) events organized by recognized bodies, authorizing permits for participating drivers.
2) racing event qualification, and
3) practice associated with events.
Installation of such restricted Products in Model Year 1975 and later street driven Vehicles, including driving Competition or Racing Vehicles to the racetrack, is likely to be considered illegal “Tampering” or a “Defeat Device” subject to U.S. Federal and State penalties
- Engine Block Style:
- Stock/OEM standard deck
- Style:
- Dual plane
- Basic Operating RPM Range:
- 1,500-6,500
- Material:
- Aluminum
- Finish:
- Natural
- Height:
- 5.605 in.
- Intake Section Included:
- Complete
- Fuel Rails Included:
- N/A
- Aftermarket Fuel Rail Required:
- N/A
- Carburetor Quantity:
- One
- Carburetor Mounting:
- 4-barrel square bore
- Throttle Body Bore Size:
- N/A
- Has Bosses:
- No
- Bosses Machined:
- No
- Boss Quantity:
- N/A
- Injectors Included:
- N/A
- Throttle Body Included:
- N/A
- EGR:
- No
- Quantity:
- Sold individually.
- Make:
- Chevrolet
- Engine Family:
- Chevy small block Gen III/IV (LS-based engines)
- Engine Sizes:
- 4.8L/294-6.0L/364
- Years:
- 1997-2007
- Cylinder Head Style:
- Cathedral port
