Retrofit Engineering & Design LLC

Retrofit Engineering & Design LLC Retrofit is a shop that adds new technology to classic cars and trucks. We specialize in vehicles built in between 1964 and 1992.

We perform engine swaps, EFI installation, suspension upgrades as well as electrical troubleshooting and service.

It's time for a new chapter. Welcome to the future of Retrofit.
04/01/2026

It's time for a new chapter. Welcome to the future of Retrofit.

03/14/2026

Quite possibly the only 1967 Camaro with an alcohol fed BBC controlled by a Holley Dominator and a CNP (coil near plug) ...
03/07/2026

Quite possibly the only 1967 Camaro with an alcohol fed BBC controlled by a Holley Dominator and a CNP (coil near plug) set up in Randolph County? I'm looking forward to seeing this one at the track soon. #1967

We are finishing up a project in the shop and decided to ask AI what this was, what it did, and what vehicle it would li...
02/27/2026

We are finishing up a project in the shop and decided to ask AI what this was, what it did, and what vehicle it would likely be installed in. Let us know in the comments what you think it told us (hilariously wrong answers will receive bonus points).

02/26/2026

There is cool...then there is Leonard Wood cool.

Check out Justin's project. We supplied upper and lower radiator hoses for this build. What are you working on this week...
02/20/2026

Check out Justin's project. We supplied upper and lower radiator hoses for this build. What are you working on this weekend? #1964

Can anyone tell me the significance of these hash marks on this mid 80's F150 speedometer? I'll give bonus points for ri...
01/16/2026

Can anyone tell me the significance of these hash marks on this mid 80's F150 speedometer? I'll give bonus points for ridiculously wrong answers.

For anyone that is interested, here is a quick walk around the shop on this fine Friday afternoon. Which vehicle would y...
01/09/2026

For anyone that is interested, here is a quick walk around the shop on this fine Friday afternoon. Which vehicle would you want in your garage?

Project updates

We have been working on some custom designs for t-shirts and hoodies this year. What vehicle would you like to see?     ...
12/22/2025

We have been working on some custom designs for t-shirts and hoodies this year. What vehicle would you like to see?

Happy full house Friday!
12/12/2025

Happy full house Friday!

We recently wrapped up a long list of improvements on this 1981 Z28. As with all projects, there were some technical, di...
11/21/2025

We recently wrapped up a long list of improvements on this 1981 Z28. As with all projects, there were some technical, dimensional, and electrical challenges, but we found some innovative solutions.

Address

908 E Broadway Street
Sparta, IL
62286

Opening Hours

Monday 6am - 5pm
Tuesday 6am - 5pm
Wednesday 6am - 5pm
Thursday 6am - 5pm
Friday 9am - 5pm

Telephone

+13142469287

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