Full unit shot LS throttle body adapter 3 bolt intake to 4 bolt 92mm for GM 5.7L LS1 and truck LS applications
Front face LS throttle body adapter 3 bolt intake to 4 bolt 92mm front view for GM 5.7L LS1 and truck LS applications
Kit layout LS throttle body adapter 3 bolt to 4 bolt 92mm installation kit for GM 5.7L LS1 and truck LS applications
Parts laid flat LS throttle body adapter 3 bolt to 4 bolt 92mm included parts for GM 5.7L LS1 and truck LS applications
Official studio shot EGR Performance LS throttle body adapter 3 bolt to 4 bolt 92mm for GM 5.7L LS1 and truck LS applications
Throttle Body Adapter for LS1 LS Engine Universal LS Applications - image 6
Throttle Body Adapter for LS1 LS Engine Universal LS Applications - image 7
Throttle Body Adapter for LS1 LS Engine Universal LS Applications - image 8
Full unit shot LS throttle body adapter 3 bolt intake to 4 bolt 92mm for GM 5.7L LS1 and truck LS applications
Front face LS throttle body adapter 3 bolt intake to 4 bolt 92mm front view for GM 5.7L LS1 and truck LS applications
Kit layout LS throttle body adapter 3 bolt to 4 bolt 92mm installation kit for GM 5.7L LS1 and truck LS applications
Parts laid flat LS throttle body adapter 3 bolt to 4 bolt 92mm included parts for GM 5.7L LS1 and truck LS applications
Official studio shot EGR Performance LS throttle body adapter 3 bolt to 4 bolt 92mm for GM 5.7L LS1 and truck LS applications
Throttle Body Adapter for LS1 LS Engine Universal LS Applications - image 6
Throttle Body Adapter for LS1 LS Engine Universal LS Applications - image 7
Throttle Body Adapter for LS1 LS Engine Universal LS Applications - image 8

Throttle Body Adapter for LS1 LS Engine Universal LS Applications

$30.94
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Details
Brand Model Year Engine Model
Universal LS intake applications Verify by intake pattern LS1 and LS series with 3 bolt intake

✅ Exact Fitment Guarantee | If you are unsure about compatibility, contact us at service@egrperformance.com with your VIN.

Intro Section

  • Throttle body adapter converts a 3 bolt LS intake to a 4 bolt throttle body.
  • Designed for LS1 and LS truck style intake setups using compatible LS hardware.
  • 75 mm through hole tapers to a 92 mm throttle body opening.
  • Review the fitment, specifications, package contents, and installation details below.
Shipping Details

Ontario CA / Springdale OH / Newark NJ
Package List

Complete Package Contents

  • 1 xLS throttle body adapter plate.
  • 1 xinstallation bolt set.
  • 1 xO-ring seal.
Delivery Time

2-5 working days inland in the United States

Product details

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Product Overview

  • Throttle body adapterfor 3 bolt LS intake to 4 bolt LS throttle body swaps.
  • Supports92 mmbillet style LS throttle body installation.
  • Compatible with bothDBWandDBC4 bolt throttle bodies.
  • Aluminum adapter plate with O-ring seal and installation bolts included.

Ideal For

  • LS intake conversion: Solve 3 bolt intake to 4 bolt throttle body mismatch.
  • 92 mm throttle body setup: Solve throttle body mounting pattern mismatch.
  • DBW LS throttle body install: Solve adapter plate fitment requirements.
  • DBC LS throttle body install: Solve 4 bolt throttle body mounting needs.

Technical Specifications

  • Product Type: Throttle body adapter.
  • Intake Side Pattern: 3 bolt LS intake.
  • Throttle Body Side Pattern: 4 bolt LS throttle body.
  • Throttle Body Size Support: 92 mm throttle body.
  • Through Hole Diameter: 75 mm.
  • Transition Design: 75 mm through hole tapered to 92 mm throttle body side.
  • Throttle Control Compatibility: DBW and DBC 4 bolt throttle bodies.
  • Material: Aluminum.
  • Condition: New.
  • Warranty: 1 Year Limited Warranty against manufacturing defects.

Why Choose EGR Performance

  • Fitment Support: Solve LS adapter compatibility questions by VIN email check.
  • Warranty Coverage: Solve purchase risk with 1 Year Limited Warranty.
  • Clear Specs: Solve wrong-order risk with listed 75 mm and 92 mm dimensions.
  • US Buyer Support: Solve installation questions at service@egrperformance.com.

Installation Information

Installation Difficulty Level

Moderate

Estimated Installation Time

Vehicle setup dependent; source data does not specify a fixed hour range.

Required Tools

  • Socket set.
  • Ratchet.
  • Torque wrench.
  • Throttle body safe cleaner.
  • Basic hand tools.

Step-by-Step Installation Overview

  • Disconnect the battery before throttle body service.
  • Remove the existing throttle body from the LS intake.
  • Position the adapter plate and O-ring seal.
  • Install the bolts and secure the 4 bolt throttle body.
  • Reconnect sensors and verify throttle operation.

No printed instructions included. Professional installation is highly recommended. For technical support, contact service@egrperformance.com.

Troubleshooting and Problem Solving

Common Issues After Installation

  • Vacuum leak: O-ring not seated evenly during adapter installation.
  • High idle: Throttle blade or cable position needs inspection.
  • Throttle response issue: DBW or DBC connection needs recheck.
  • Air leak noise: Adapter bolts may need even tightening.

Error Code Solutions

  • No listed DTC: Scan the vehicle and inspect throttle wiring first.
  • Throttle position fault: Check sensor plug and throttle body alignment.
  • Lean condition fault: Inspect O-ring seal and adapter mounting surface.

How to Reset Check Engine Light After Installation

  • Repair any air leak or wiring issue first.
  • Connect an OBD2 scan tool.
  • Clear stored codes after confirming no active fault.
  • Road test and rescan the vehicle.

What to Do If Your Vehicle Loses Power After Installation

  • Inspect throttle body connector seating.
  • Check for vacuum leaks around the adapter plate.
  • Confirm the throttle blade moves without binding.
  • Verify the adapter matches the 3 bolt LS intake pattern.

Core Advantages

  • Pattern Conversion: Converts3 boltLS intake to4 boltthrottle body.
  • Bore Transition: Uses75 mmthrough hole tapered to92 mm.
  • Throttle Control Support: Fits2LS throttle control types, DBW and DBC.
  • Sealing Support: Includes1O-ring seal for adapter installation.

Complete Package Contents

  • 1 xLS throttle body adapter plate.
  • 1 xinstallation bolt set.
  • 1 xO-ring seal.

Long-Term Maintenance Tips

  • O-ring Seal: Inspect every 12 months to prevent vacuum leaks.
  • Adapter Bolts: Check after first heat cycle to prevent loosening.
  • Throttle Body Area: Clean during service to prevent sticky throttle action.
  • Wiring Connectors: Inspect during intake service to prevent signal faults.

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Vehicle Fitment

  • Fits LS applications using a3 bolt LS intake.
  • Fits4 bolt LS throttle bodieswith DBW or DBC control.
  • Supports92 mmLS throttle body installations.
  • Does not confirm vehicle year, trim, or engine by model alone.
  • Not for non-LS intake patterns or mismatched throttle body patterns.
  • For uncertain fitment, email your VIN to service@egrperformance.com.
  1. Dispatch Time: Orders will be shipped within 24 hours after successful payment.
  2. Delivery Time: 2-5 business days after dispatch (delivery speed depends on proximity to warehouse location).
  3. Return Window:7 days for unsatisfactory items45 days for quality-related issues
  4. Refund Processing: Refunds will be processed back to your original payment method within 2-4 business days after receiving the automated refund confirmation email (subject to bank verification).

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What does this throttle body adapter do?

It adapts a 3 bolt LS intake to accept a 4 bolt LS throttle body.

Will this adapter work with a 92 mm throttle body?

Yes. The adapter is described for 92 mm LS throttle body installation.

What is the through hole diameter?

The through hole is 75 mm and tapers to the 92 mm throttle body side.

Does it fit DBW throttle bodies?

Yes. It is compatible with DBW 4 bolt LS throttle bodies.

Does it fit DBC throttle bodies?

Yes. It is compatible with DBC 4 bolt LS throttle bodies.

Does this fit every LS vehicle?

No. Fitment must be verified by the 3 bolt LS intake and 4 bolt throttle body pattern.

Can I use it for LS1 intake applications?

Yes, when the LS1 setup uses the matching 3 bolt LS intake pattern.

Is this a complete throttle body?

No. This listing is for a throttle body adapter kit, not a throttle body.

What material is the adapter made from?

The adapter is made from aluminum.

Is an O-ring seal included?

Yes. The package includes 1 O-ring seal for installation.

Are bolts included?

Yes. The package includes an installation bolt set.

Are printed instructions included?

No. Printed instructions are not included, and professional installation is recommended.

Can I install this at home?

Experienced DIY users may install it, but professional installation is highly recommended.

What should I check if idle is high after installation?

Check the O-ring seal, adapter bolt tightness, throttle blade, and vacuum leaks.

What warranty does EGR Performance provide?

EGR Performance provides a 1 Year Limited Warranty against manufacturing defects.