CJ Rombold Engine Builders

CJ Rombold Engine Builders Automotive machine shop We Do Work on All Engines, Junior Dragsters to Alcohol Funny Cars, Pure Stock to Sprint Cars.

Machine Shop Services Done By Our Performance Specialists
Cleaning, Glass Beading, Pressure Testing, Align Boring, Align Honing, Block Decking, Block Boring, Block Honing, Plate Honing, Block Prep, Resurfacing, Balancing, Engine Assembly, Angle Milling, Cylinder Head Repair, Competition Valve Job, Cylinder Head Porting, Connecting Rod Reconditioning, Competition Piston Prep, Pin Fit Pistons & Rods, Flywheel Grinding, Magnaflux Testing, Crank Repair & Grinding, Piston Coating, Engine Dyno

This 427 is not a radical build with a stock rotating assembly, 30 over pistons, small Comp roller cam, and a 750 Holley...
06/02/2026

This 427 is not a radical build with a stock rotating assembly, 30 over pistons, small Comp roller cam, and a 750 Holley. After break in made 454 HP & 540 TQ.

421CI Chevrolet alcohol powered drag engine. A few of the parts for this build. RHS Heads (Racing Head Service), Erson C...
05/14/2026

421CI Chevrolet alcohol powered drag engine. A few of the parts for this build. RHS Heads (Racing Head Service), Erson Cam, APD (Advanced Product Design) Carburetor, Engine Vacuum system. 668 HP 593 TQ

350 Olds on the Dyno Tuesday night for some break in runs. Checking the valve clearance afterwards. 390 HP / 400 TQ
05/08/2026

350 Olds on the Dyno Tuesday night for some break in runs. Checking the valve clearance afterwards. 390 HP / 400 TQ

Another day another build!
04/26/2026

Another day another build!

Always nice to see something we built in it's home. This S-10 is in for Dyno tuning before race season starts.
04/17/2026

Always nice to see something we built in it's home. This S-10 is in for Dyno tuning before race season starts.

Heading to the Dyno next is this 400 Pontiac. Stock bottom end with just a few extras like a Hydraulic Roller Cam, Edelb...
04/10/2026

Heading to the Dyno next is this 400 Pontiac. Stock bottom end with just a few extras like a Hydraulic Roller Cam, Edelbrock RPM Performer Intake, MSD Ignition, Brawler 750 Carburetor. This will be installed in a 1970 GTO.

Today we are taking a 454 CI BB Chevy and stroking it to a 496 CI. This engine will have AFR Heads and will be installed...
04/04/2026

Today we are taking a 454 CI BB Chevy and stroking it to a 496 CI. This engine will have AFR Heads and will be installed into a 1970 Impala.

03/26/2026
Last Tuesday night engine build. 427 CI Chevrolet. Dart Block, S**t Rotating Assembly, AFR 210 CC Heads, Edelbrock Intak...
03/17/2026

Last Tuesday night engine build. 427 CI Chevrolet. Dart Block, S**t Rotating Assembly, AFR 210 CC Heads, Edelbrock Intake, and a Cold Fusion Nitrous System.

Today we have a 1973 Ford 390 FE. This engine came in all original and had never been rebuilt. The horsepower wars were ...
02/19/2026

Today we have a 1973 Ford 390 FE. This engine came in all original and had never been rebuilt. The horsepower wars were pretty much over. This year the 390 made about 201 HP with a two barrel carburetor. With a small hydraulic cam, 750 Brawler carburetor, and a PerTronix distributor we made 318 HP & 409 TQ

Address

6783 Big Beaver Boulevard
Beaver Falls, PA
15010

Opening Hours

Monday 8:30am - 5pm
Tuesday 8:30am - 8pm
Wednesday 8:30am - 5pm
Thursday 8:30am - 5pm
Friday 8:30am - 4pm

Telephone

(724) 846-8484

Website

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