Costigan Automotive

Costigan Automotive Specialized service and repair for muscle cars, hot rods, and classic American cars.

05/25/2026

Nice little C10 shortbox was in for tuning. It features a 6.0/4L80 swap with a Brian Tooley Racing stage 3 camshaft, 3000 stall converter, and 4.10 gears. This combo works great! Tire smoke on tap 😎👍🏻

This cool C20 was in to fix a header rattle and an oil leak. It will be back soon to lower the ride height a bit.
05/24/2026

This cool C20 was in to fix a header rattle and an oil leak. It will be back soon to lower the ride height a bit.

05/16/2026

Got this one tuned and finished up. The Texas Speed & Performance 228R camshaft drives excellent and has a killer idle chop! Great all-around cam for a 5.7L.

Cam specs:
228/228 intake/exhaust duration600/.600” lift
110 Lobe separation angle

Another c5 Z06 getting the choppity-chop with a Texas Speed & Performance 228R camshaft.
05/16/2026

Another c5 Z06 getting the choppity-chop with a Texas Speed & Performance 228R camshaft.

05/16/2026

Brian Tooley Racing stage 2 LS1 camshaft and CORSA Performance exhaust make a great sounding combination 😎👍🏻

This one was in the shop for a leaking power steering hose.

“PUR-EVIL” was in for annual service 😈Thank you ELITE Tuned School for fixing a throttle issue!Thank you Twin City Tire ...
05/06/2026

“PUR-EVIL” was in for annual service 😈

Thank you ELITE Tuned School for fixing a throttle issue!

Thank you Twin City Tire & Service for mounting a pair of new front tires 👍🏻

Thank you Byers garage for the C-16 fuel!

Had this nice Trans Am in to fix a few minor issues, and change the muffler. I removed the chambered muffler (flowmaster...
05/05/2026

Had this nice Trans Am in to fix a few minor issues, and change the muffler. I removed the chambered muffler (flowmaster knock-off) and replaced it with a magnaflow. The chambered muffler was too loud, and would drone at cruising speeds. The Magnaflow has a nice mellow tone. Check out the before and after videos in the comments 👇🏻

Which sound do you prefer? Chambered or packed mufflers?

Here’s a LS swap that’s a bit different 🧐2001 Porsche 911 is getting a LS6 from a 2001 Corvette Z06!There’s actually a T...
04/26/2026

Here’s a LS swap that’s a bit different 🧐

2001 Porsche 911 is getting a LS6 from a 2001 Corvette Z06!

There’s actually a TON of room in the back of this thing, and only required a little sheet metal cutting to clear the pulleys and water pump. The Porsche 3.4 flat-six is very wide in comparison to the LS.

I used a Chavis Performance & Engineering bellhousing adapter, and made engine mounting brackets to use corvette engine mounts.

The LS6 has Texas Speed & Performance Brawler heads, Torquer camshaft, FAST - Fuel Air Spark Technology 92mm intake manifold, and 180-degree crossover headers.

I’ve got it mostly all mocked up, but it needs to come back apart to install the clutch, wrap the headers, paint brackets, etc.

This car is going to be so much fun!

This 5th gen Camaro got a high performance 6L80 rebuild from Circle D Transmission and an upgraded transmission cooler.
04/24/2026

This 5th gen Camaro got a high performance 6L80 rebuild from Circle D Transmission and an upgraded transmission cooler.

04/18/2026

Internet folklore says this won’t work 🤷‍♂️

90mm Ls3 gold blade throttle body on a 2001 Corvette. This was actually a very easy swap, only requiring the throttle body connector to be wired in, and a few minor tune changes to the throttle tables to keep it from going into reduced power at wide open throttle.

Address

128 Avenue Road
Levant, ME
04456

Opening Hours

Monday 9am - 4:30pm
Tuesday 9am - 4:30pm
Wednesday 9am - 4:30pm
Thursday 9am - 4:30pm
Friday 9am - 4:30pm

Telephone

+12074780345

Website

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