Curless Auto Repair

Curless Auto Repair I started my company to provide a quality repair service facility for the motoring public.

05/13/2026

A little walk around... Notice the stock exhaust manifolds and stock tail pipe... Yeah buddy, over 700HP at the crank in a work truck!

Here she is, 2015 2500 6.0 Superworktruck ready for battle! To recap: 75,000 mile truck, custom ground "Haul N Oats" cam...
05/13/2026

Here she is, 2015 2500 6.0 Superworktruck ready for battle! To recap: 75,000 mile truck, custom ground "Haul N Oats" cam, Whipple 2.3 Supercharger, 1050i.d. injectors, 525 pump and true flex fuel capabilities custom installed and wired by us here in the shop.

On E85, she's making 588RWHP and 516FT/LBS of torque! This equates to 205% over stock... All breathing through a factory air box and factory exhaust.

By the way, ole girl is heavy 8700 #

We can't thank the crew at Baker Engineering LLC. enough for all the help with our custom builds. From developing new cam grinds (specifically for Curless Auto Repair ), to multiple dyno days our relationship proves over and over again our builds deliver!

The Whipple Superchargers 2.3 is extremely happy at 10 # of boost staying nice and cool under heavy load! This thing adds huge power / torque all the way through the rpm range.

OMG... The amount of butt splices, male/female, and wire nuts is insane... Not to mention the fact that half of the wiri...
05/12/2026

OMG... The amount of butt splices, male/female, and wire nuts is insane... Not to mention the fact that half of the wiring colors are all mismatched... Ugh...

Electrical day here at the shop.... Matty Ice is busy working on the 67 GTO. Let's just say she's real pretty on the out...
05/12/2026

Electrical day here at the shop....

Matty Ice is busy working on the 67 GTO. Let's just say she's real pretty on the outside but this wiring??? UGH!!!

I'm working on the Jeep instrument cluster... Tedious is the word.

How about pressure testing a 67 GTO heater core? I don't have an easy way to hook up to the heater hoses so we used a he...
05/11/2026

How about pressure testing a 67 GTO heater core? I don't have an easy way to hook up to the heater hoses so we used a heat exchanger from a supercharger that has a radiator cap fitting on it! And she's a leaker....

It's a Jeep thing.... Trying to understand! So it needs the gauges fixed due to being hooked up wrong in the past.... Ye...
05/11/2026

It's a Jeep thing.... Trying to understand!

So it needs the gauges fixed due to being hooked up wrong in the past.... Yep, you gotta drop the windshield and then pull the duct work for defrost out, then you can get to the top bolts for the cluster. Oh, are you missing your chewing gum???

Also needs an alternator upgrade due to having electric fans. 150amps should fix that issue!

Found out about a week or so ago we lost a good guy / customer .... Gary Beaudoin .... He was a gear head through and th...
05/11/2026

Found out about a week or so ago we lost a good guy / customer .... Gary Beaudoin .... He was a gear head through and through, we built a Nova, Corvette, and we were going to get started on this Bullitt Mustang. Unfortunately, Gary passed away and we didn't get to start on it... Until today, one of his best friends bought the car and asked us to install Gary's previously purchased parts.

Here's to you Gary, know your car is being taken care of and we miss ya man!

Did I mention that Work Truck is literally breathing through 100% STOCK exhaust? Here's a reference photo, the Valvoline...
05/07/2026

Did I mention that Work Truck is literally breathing through 100% STOCK exhaust? Here's a reference photo, the Valvoline gear l**e barrel is 14" in diameter and 27" tall... The muffler is 13" in diameter and 23.5" long!!! It's got a garbage can for a muffler!😆

Address

347 Lagrave Avenue
Grand Rapids, MI
49503

Opening Hours

Monday 8am - 5:30pm
Tuesday 8am - 5:30pm
Wednesday 8am - 5:30pm
Thursday 8am - 5:30pm
Friday 8am - 5:30pm

Telephone

+16169881315

Website

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