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
Products sold on this website may not be legal for use on public roads or highways due to Environmental Protection Agency (EPA) restrictions or California Air Resources Board (CARB) emissions regulations. Federal and State regulations may restrict Product installation to pre-emissions regulation (Model Year 1974 or earlier) or to competition/racing vehicles used exclusively in
1) events organized by recognized bodies, authorizing permits for participating drivers.
2) racing event qualification, and3) practice associated with events.
Installation of such products, including driving racing vehicles to and from the track, may be considered illegal “tampering ” or as “defeat device”, and may result in federal and state penalties. It is the purchaser’s responsibility to ensure compliance with all applicable emissions laws, including California’s stricter standards.
Proposition 65 Warning:
This product may contain chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
- 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
- Carburetor Mount:
- 4-barrel square bore
- Has Bosses:
- No
- Bosses Machined:
- No
- Boss Quantity:
- 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
