Product Summary

LQ4, LQ9, LS1, LS2, LS6, LY6, One Carburetor Quantity

  • Converts and LS1; LS6; Gen III Engine to Carburetor
  • It also fits the Corvette LS6 engine and any other Gen III engine including the LM7
  • Features a lightweight, yet durable aluminum construction with a natural finish
  • Has a 4-barrel square bore flange type with a 5.160" x 5.625" bolt pattern
  • It is excellent for any engine retro-fit application

Key Specs

MFG. Part #71187

Need To Know

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This powerful 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.
  • Manifold Only
  • Converts LS1; LS6; Gen III Engine to Carburetor
  • Also Fits LM7(5.3L); LR4(4.8L) and LQ4(6.0L) Eng.
  • For 1500 to 6500 RPM Street Performance
  • Excellent for Engine Retro-Fit Applications


CARB Warning

Follow EPA, CARB, and state regulations for engine changes

Emissions warning: this part is for vehicle engine changes, not direct oem engine replacements. In California, engine changes are legal when done in compliance with California bureau of automotive repairs (bar) engine change policy. For assistance, call bar referee at: (800) 622-7733. And see https://bar.Ca.Gov/consumer/smog_check_program/engine_changes. All customers must comply with federal epa mobile source enforcement memorandum no. 1a (and addendum) and all applicable state regulations when conducting engine changes. Improper installation and/or use of this part in California may subject the installer and/or owner to a $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and laws of all states for use of this engine change part on makes or models of vehicles that render them noncompliant with applicable state and/or federal emission laws with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine


MFG. Part #71187
Fuel System TypeCarbureted
Intake Manifold TypeDual Plane
Carburetor QuantityOne
Carburetor Flange Type4-Barrel Square Bore
RPM Range1,500-6,500
Material TypeAluminum
Intake Section IncludedComplete
Gaskets IncludedNo
Overall Height4.95"
Bolt Hole Pattern5.160" x 5.625"
Sold in QuantityEach
NotesIntake manifold bolts are included.
GTIN Code085347711871