Spencers Speed Shop

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Spencers Speed Shop High Performance & Drag Race Engine Building Tech Videos. Race Cars, Hot Rods, Muscle Cars & Harley Davidson's. My specialty is Cylinder Head Porting.

Fully Stocked Speed Shop, Harley Davidson Performance work! Harley EFI & DYNO TUNING Muscle Car Tuning Early Hot Rod Builds & Chassis work Mark Spencer has been building & driving High Performance Street & Drag Race Cars since 1977. My back ground is in High Performance Street & Drag Race Engine building, development and machining. I have never worked as a Mechanic. I have always worked in the High Performance Industry. I started my full time Business in 1993 at the age of 33. My Shop is known for building Hot Rods & Harley's. All work except for Paint & Chroming is done in House by myself and my Highly Talented Steff

10/08/2026

Another crazy car purchase story. 1967 Olds 442. Got it in 1980. Mark Spencer. Spencer’s Speed Shop. Enjoy

10/08/2026

I can’t always respond to your messages. Sometimes it’s better to just email me at [email protected] Include a brief description of your question and your contact information. Mark Spencer

10/08/2026

427 Ford FE Side Oiler in house. Follow along as we do a tear down. PS in the video I talk about another engine. I call it a "454/435" I was supposed to say "427/435" I'm a 1 take MF! Let it go. Mark Spencer. Spencer’s Speed Shop

10/08/2026

Do you know how much Vacuum your engine is making? Do you honestly know how it contributes to your engines performance? Look n Learn. Mark Spencer, Spencer's Speed Shop

Short long story. I bought a trailer off of the guy that owned this car. When I saw it I noticed the front wheels (not t...
10/08/2026

Short long story. I bought a trailer off of the guy that owned this car. When I saw it I noticed the front wheels (not the ones in this pic) were rare Magnesium MOTOR WHEEL "FLY'S". I asked if he would sell them. He said they go with the car and it was for sale. So I bouhgt it! He said he missed a gear and bent a valve before it ever made it to the track. I worked at MANLEY PERFORMANCE at the time. I pulled the head, kissed the Exhaust Seat and replaced the valve. It fired right up! I built some heat into it and took it for a spin...With open headers! Two cop cars followed me back to my house because... I didn't know they were behind me. Between the open headers, I couldn't hear their siren and covering on the Lexan side windows and the faded convert rear window, I didnt see them. They weren't happy but they understood. My fathers word were "You better sell that fu**in car LAST WEEK!" Gone in about 5 days. Peace out, Mark Spencer

10/07/2026

Not too bad for a pump gas street car on the street. Mark Spencer, Spencer's Speed Shop

10/06/2026

For people calling “Bullsh*t” on me being clocked at 156 mph by NJ Sate Troopers. Here’s a chance to make some easy money…

10/05/2026

The full story of getting clocked at 156 mph by the New Jersey State Troopers. This story is 100% true!! Mark Spencer. Spencer’s Speed Shop.

Address

31 Joralemon Street
Belleville, NJ
07109

Opening Hours

Tuesday 10am - 5pm
Wednesday 10am - 5pm
Thursday 10am - 5pm
Friday 10am - 5pm
Saturday 10am - 3pm

Telephone

+19734504800

Website

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