Spencers Speed Shop

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

09/15/2026

Me in my Engine Room. SEE THE ITEMIZED PARTS LIST BELOW. Anyone that has "Hands on" real time experience with Hemi's knows the majority of time and $$$ is invested in the valvetrain ($9375.00) if you want it to live and be reliable! Here is an itemized list:
- Custom made Rocker assembly $3500
- Custom Ground Roller Cam $ 1100
- Isky Red Zone Solid Rollers $ 975
- Valve Springs/Titanium Retainers$ 750
- Manton Tool Steel Pushrods $ 950
- + .200 S/S Manley Valves $ 875
- Bronze bushed Lifter Bores $ 975
- Miscellaneous components $ 250
PARTS TOTAL less my Labor $9375.00

09/15/2026

Re-post: Valve Retainers for the street. TITANIUM or TOOL STEEL? Look n Learn... Let the games begin! Mark Spencer, Spencer's Speed Shop

09/15/2026

PERTRONIX IGNITION Tech. Old video but worth a re-post. If your engine has a miss, look for this. Mark Spencer, Spencer's Speed Shop

09/15/2026

A quick walk-around of my Model A from a couple of years ago. Blown 468 BBC pump gas street ride. Over 7k trouble free street miles. Driven to/from Island Dragway & clicked off a 9.92 @ 132 Mark Spencer, Spencer's Speed Shop

09/15/2026

My '31 Model A. Cleaning the tires off. Video is about 4 years old. Enjoy, Mark Spencer

09/14/2026

Never buy these Spark Plug Wires!! Junk! Look n Learn. Mark Spencer. Spencer’s Speed Shop

My 1967 Fairlane GTA. 390/335, C6 and a 3 something open rear. My second car when I turned 17. Purchased from a Female S...
09/13/2026

My 1967 Fairlane GTA. 390/335, C6 and a 3 something open rear. My second car when I turned 17. Purchased from a Female School Teacher in 1977 for $385! I installed headers, Accel ignition, Shift kit and a Carter 750 Comp Series Carb. I would race it down Avenue P. Make more money in one night than I did ina week at my full time job. When I started street racing I left the Hubcaps on. Cut off one tailpipe so it looked like single exhaust...and replaced the 390 emblems with 289 ones

09/11/2026

https://www.hotrodinnovations.cool/ Tested: Hot Rod Innovations Throttle Return Spring kit. I love it! And It's AMERICAN MADE! No Metric Hardware! Thank you David. 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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