Chevrolet LS1 V8 Manifolds


Chevrolet LS1 V8

Performer RPM LS1 (1500-6500 rpm)

This powerful new manifold is designed for the popular Chevrolet LS1 (5.7L) small-block V8 originally used in 1997 and later Corvettes and 1998-02 Camaros and Firebirds. It also fits the Corvette LS6 engine and any other Gen III engine including the LM7 (5.3L), LR4 (4.8L), and LQ4 (6.0L). It allows the use of a carburetor on these originally computer-controlled engines, offering maximum power and a broad torque curve from 1500 to 6500 rpm. This manifold made 410 hp and 418 ft/lbs. of torque in dyno tests with our matching cam #2215 and Performer Series carb #1413. The Performer RPM LS1 includes a wiring harness and unique electronic Timing Control Module made by MSD® which works with OE sensors to fire the coil-on-plug ignition system and offers a choice of three timing curves. A special throttle and trans bracket that works with 700R-4 and Turbo 350 transmissions is included, making the LS1 engine an easy retro-fit into any muscle car, street rod or marine application.

Performer RPM LS1 Manifold & Timing Control Module .....#7118

Carburetor Recommendations for the Performer RPM Vortec:

Performer #1405 (600 cfm) - Ref. A, I, K, 0
Performer #1406 (600 cfm) - Ref. A, I, N
Performer #1407 (750 cfm) - Ref. - Ref. A, I, K, 0
Performer #1412 (800 cfm) - Ref. A, I, K, 0
Performer #1413 (800 cfm) - Ref. A, I, K
Thunder Series AVS #1812 (800 cfm) - Ref. A, I, K, 0
Thunder Series AVS #1813 (800 cfm) - Ref. A, I, K
Performer Marine #1409 (600 cfm) - Ref. B, H, N, P
Performer Marine #1410 (750 cfm) - Ref. B, H, N, P

Installation Notes: Manifold height: A-4.50", B-5.40" see page 45. Port exit dimensions: .98" x 2.72".

LS1 Thermostat and Housing Assembly

This integrated assembly is for use with the Performer RPM LS1 manifold in non-computer controlled vehicles. Available in two temperature ratings, it includes two threaded bosses for temperature sensor, etc.

160° LS1 Thermostat Assembly .....#4807
180° LS1 Thermostat Assembly .....#4808


All parts on this page not legal for sale or use on pollution controlled motor vehicles.