Designed for Gen IV engines with LS3, L92 and L76 rectangular port cylinder heads. The Performer RPM LS3 is ideal for anybody looking to build a carbureted LS3 engine with an operating range between 1,500 - 6,500 rpm. It allows the use of a carburetor on these originally computer-controlled engines, offering maximum power and a broad torque curve. It features a high-rise dual-plane design combined with a plenum that has been optimized for square-bore carburetors. Our advanced casting techniques allowed us to create a lightweight casting that weighs only 14 lbs. Performer RPM LS3 includes a provision for mounting an MSD Ignition Timing Control Module #6014, including passages for routing the coil wire harness underneath the plenum, for a clean look. A special throttle and trans bracket that works with 700-R4, 200-4R and Turbo 350 transmissions is also included, making this an easy retro-fit into any muscle car, street rod or marine application. #71196 includes MSD Ignition Timing Control Module #6014.
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:
- 5.110 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.
- Notes:
- Designed for rectangular port cylinder heads.
- Make:
- Chevrolet
- Engine Family:
- Chevy small block Gen III/IV (LS-based engines)
- Engine Sizes:
- 6.0L/364-6.2L/376
- Years:
- 2005-2019
- Cylinder Head Style:
- Rectangular port