Marine City, MI… October 7, 2021 – Howell EFI, a leader in EFI conversion kits (GM/TPI/TBI) and wiring harnesses for direct injection swaps, now offers plug and play LT1/LT4 and EcoTec3 wiring…
Search Results for: EcoTec3 harness
![EcoTec3 5.3L](https://howellefi.com/wp-content/uploads/2023/10/gm-5-3l-v8-ecotec3-l83-engine-3.jpg)
Marine City, MI, (April 11, 2019) – Howell EFI, long been known as a leader in EFI conversions since the late 1980’s beginning with GM TPI conversions,…
![LT1](https://howellefi.com/wp-content/uploads/2018/08/lt1-web.jpg)
Howell EFI is pleased to introduce their new 2016 LT1 Camaro, 2014 – 2016 LT1 Corvette, and 2015 – 2016 LT4 Corvette harnesses, as well…
Howell EFI announces availability of 2014+ EcoTec3 4.3L V6 LV3-C truck wiring harnesses, allowing for transplant into an unlimited number of applications from Street Rod,…
Howell EFI’s new Ecotec3 Truck Harness Kits allow the transplant of an EcoTec3 4.3L V6 engine, 5.3L V8 engine, and EcoTec3 6.2L V8 engine from 2014…
![#HVL435846 2014+ EcoTec3 4.3L V6 LV3-C Truck Harness (Manual Transmission)](https://howellefi.com/wp-content/uploads/2016/03/p-2596-LT1Harness2_pkq3-rv-scaled.jpg)
Harness part #HVL435846 allows transplant of an EcoTec3 4.3L V6 engine into a unlimited number of applications from Street Rod, Pro-Touring, Off-Road, Sandrails, Street machines etc. Harnesses…
![#HVL435846T 2014+ EcoTec3 4.3L V6 LV3-C truck wiring harness (6L80/90 transmission)](https://howellefi.com/wp-content/uploads/2016/03/p-2598-LT1Harness2_ey5i-z1-scaled.jpg)
Harness part #HVL435846T allows transplant of an EcoTec3 4.3L V6 engine into a unlimited number of applications from Street Rod, Pro-Touring, Off-Road, Sandrails, Street machines…
![#HVL535846 2014+ EcoTec3 5.3L V8 L83-C Truck Wiring Harness (Manual Transmission)](https://howellefi.com/wp-content/uploads/2016/03/p-2601-LT1Harness2_lyku-q1-scaled.jpg)
Harness part #HVL535846 allows transplant of an EcoTec3 5.3L V8 engine into a unlimited number of applications from Street Rod, Pro-Touring, Off-Road, Sandrails, Street machines…
![#HVL535846T 2014+ EcoTec3 5.3L V8 L83-C Truck Wiring Harness (6L80/90 Trans)](https://howellefi.com/wp-content/uploads/2016/03/p-2604-LT1Harness2_itif-0p-scaled.jpg)
Harness part #HVL535846T allows transplant of an EcoTec3 5.3L V8 engine into a unlimited number of applications from Street Rod, Pro-Touring, Off-Road, Sandrails, Street machines…
![#HVL625846 2014+ EcoTec3 6.2L V8 L86-C Truck Wiring Harness (Manual Transmission)](https://howellefi.com/wp-content/uploads/2016/03/p-2607-LT1Harness2_s56m-1o-scaled.jpg)
Harness part #HVL625846 allows transplant of an EcoTec3 6.2L V8 engine into a unlimited number of applications from Street Rod, Pro-Touring, Off-Road, Sandrails, Street machines…
![#HVL625846T 2014+ EcoTec3 6.2L V8 Truck Wiring Harness (6L80/90 Transmission](https://howellefi.com/wp-content/uploads/2016/03/p-2610-LT1Harness2_onp9-j4-scaled.jpg)
Harness part #HVL625846T allows transplant of an EcoTec3 6.2L V8 engine into a unlimited number of applications from Street Rod, Pro-Touring, Off-Road, Sandrails, Street machines…
About The LT Engine Family The General Motors Gen V LT and EcoTec3 engines are part of the fifth generation of small-block V6 and V8…