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20 Best 5.3 Vortec Engine And Transmission For Sale of 2023 – Romance University

After hours researching and comparing all models on the market, Romance University finds out the Best 5.3 Vortec Engine And Transmission For Sale of 2023. Check our ranking below.

2,429 Reviews Scanned

Rank No. #1

T56 DBC LS1 Wiring Harness Standalone Compatible with 1997-2006 700R4 T56 TH400 TH350 200-4R or Non-Electric Transmission Wire Engines 4.8 5.3 6.0 Vortec Drive by Cable EV1 Fuel injectors

Applicable Models : Compatible with T56 TH400 TH350 700R4 200-4R manual transmission DBC LS1 engines 4.8 5.3 6.0 1997-2006 Drive By Cable LS1 Engines (T56 or Non-Electric Tran 4.8 5.3 6.0) EV1 fuel injectors only and 3 MAF plug.
High Quality:The complete wiring harness is made of high-quality copper core wires, which has lower eccentricity and resistance, well performed in conducting electricity.The wrapped plastic surfaces can stand high temperatures, all kinds of chemical reagent, strong impact, and press. The extra-long 13-15 feet wires help to conduct any wiring circuits. For non-emissions equipped vehicles and do not include air pump or EGR provision.
All harnesses come with the needed Dash Connections, which include Speedometer, Tachometer, Park Neutral, TCC, Malfunction Indicator, and a DLC Port. (Upgraded 60-AMP Relays Harness comes with a complete install instruction packet). All Harnesses have a High Quality Grommet installed on the Harness (THAT SLIDES FOR DESIRED MOUNTING) Harnesses receive a quality check before shipment.
Easy to Install：Multiple circuit wiring harnesses are all coded by GM color for easier installation. Completely plug and play with four wire hookup (switched power, constant power, and ground connections required). A sliding grommet seal allows for professional, leak-proof installation.
1-Year-Warranty : We Test Each Item and 100%Ensure That Before We Ship, Before and After Sales, We Will Provide Warranty Service For Damaged Products, True Worry-Free Shopping Experience.

Rank No. #2

LS1 Engine Standalone Wiring Harness 4L60E DBC Compatible with GM DBC LS1 4.8 5.3 6.0 Engine 1997-2006, 4L60E Drive by Cable

4L60E professional engine wiring harness includes a variety of connectors in the engine, just like sensor connector, instrument panel connection, speedometer, tachometer, parking neutral, fault indicator, DLC port and other interfaces
It's designed to be a complete wiring harness for fuel injection system on GM 1997-2006 DBC LS1 4.8 5.3 6.0 Vortec engines with Drive by Cable throttle body and 4L60E or 4L80E (with adapter) transmissions.
The Surface of the Wiring Harness is Wrapped by Wear-Resistant Plastic, Which has the Characteristics of Flame Retardant and Corrosion Resistant, etc. The Internal Wiring is Made of High Conductivity and Corrosion-Resistant High-Quality Copper Core Wire, Which Improves the Durability of the Wiring Harness
The Surface part of the Standalone Wiring harness is wrapped in wear-resistant plastic which is flame-retardant, anti-corrosion, and anti-interference. Inner engine wiring is made of high-quality copper core wires of high electrical conductivity and high ductility and anti-corrosion.
Friendly After Sales Policy and Customer Service

Rank No. #3

Trans-Dapt Performance - 9718 - TRANS-DAPT PERFORMANCE PRODUCTS ENGINE SWAP TRANSMISSION CROSSMEMBER; INSTALLS TH350 OR 700R4 INTO '82-94 S10/S15 WITH

Item Package Quantity - 1
Product Type - MOUNT BRACKET

Last update on 2025-07-08 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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FAQ:

Q: What kind of truck has a 5.3 liter Vortec engine?

A: Our LM7 5.3 liter Vortec Long Block Crate Engine is on sale. This 3rd generation Vortec was introduced to the market in 1999 and can be found in trucks and SUVs like the Cadillac Escalade, Chevrolet Avalanche, Express, Silverado, Suburban, Tahoe, GMC Savana, Sierra, Yukon and Yukon XL.

Q: Is the LM7 5.3 liter Vortec on sale?

A: Our LM7 5.3 liter Vortec Short Block Engine is on sale. In 1999 this generation 3 5.3 Vortec hit the market and was used in Cadillac, Chevy and… Our LM7 5.3 liter Vortec Long Block Crate Engine is on sale.

Q: How many horsepower does a 5.3L turnkey engine have?

A: The 5.3L produces a legitimate 300hp, and the 6.0L, 325hp in stock form. With a good performance tune that I provide, these numbers go to around 325hp and 350hp respectably. With the addition of the Z06 / LS6 camshaft it is estimated that it pushes the 5.3L to 360+hp, and the 6.0L to 375+hp.

Q: What is the VIN code for a LM7 Vortec?

A: The LM7 is distinguishable from the other 5.3 liter Vortec engines by its cast iron block and aluminum heads, it also has an eighth digit VIN code of “T”. Our XP1 series is far from a rebuilt LM7 long block, every motor has been completely remanufactured was upgraded parts designed to increase longevity. VIN Compatibility 8th digit: T

5.3 Vortec Engine And Transmission For Sale