Gromm Racing

San Jose engine shop with over 50 years in the automotive industry, building custom engines, cylinder heads and long and short blocks.

Capabilities

• Custom engine builds
• Cylinder heads
• Long blocks and short blocks
• Camshafts
• Custom mill work

Request a quote

To request a quote from this shop, use the Request a Quote form. Tell us the part, material, quantity and deadline, and we will pass your request to the shop.

Custom Engine Builds in San Jose with Gromm Racing

An engine is a set of precisely machined parts that must work together under heat and load. A custom build is more than bolting parts together. It involves choices about the block, the heads, the cam and the way everything is balanced and fitted. Gromm Racing is a San Jose engine shop listed here with over 50 years in the automotive industry, building custom engines, cylinder heads and long and short blocks, with camshafts and custom mill work. This page explains the basic terms of engine building and how to prepare a request for a custom engine in San Jose.

Long blocks and short blocks

A short block is the lower part of an engine: the block with the crankshaft, rods and pistons installed. A long block adds the cylinder heads and valvetrain, so it is a nearly complete engine that needs only accessories such as the intake, exhaust and electronics. The listing names both, so a buyer can decide how much of the engine to have built.

Cylinder heads

The cylinder head sits on top of the block and holds the valves and the combustion chambers. Its design and condition affect how well the engine breathes and how much power it can make. The listing names cylinder heads as part of the work.

Camshafts

The camshaft opens and closes the valves at the right moments. Cam choice affects the engine’s character, such as whether it makes power at low or high speeds. The listing names camshafts, so a custom build can include a cam chosen for the use.

Custom mill work

Mill work refers to machining done on a mill, such as surfacing a head, cutting pockets or modifying parts to fit. It allows parts to be adjusted for a particular build. The listing names custom mill work.

Describe your goal

The best way to start a custom engine request is to describe how the vehicle will be used. Street driving, towing, track days and show cars all have different needs. The shop can only plan the build when it knows the goal.

What to include in a request

• Vehicle make, model and year
• Engine type and size
• How the vehicle will be used
• Power and driving goals
• What parts you already have
• Whether you want a short block, a long block or a complete engine
• Your budget range and timing

Core, parts and condition

If you are bringing in an existing engine, say what condition it is in. Mention any history, such as overheating or oil problems. This helps a shop know what to expect when it opens the engine.

Over 50 years in the industry

The listing says the shop has more than 50 years in the automotive industry. That is a long time. For an engine build, though, a conversation about your goals is the best way to judge the fit.

Questions to ask

• What parts would you recommend and why
• What is the expected time frame
• How will the engine be tested or broken in
• What warranty or follow-up is offered
• What should I do before installation

The listing does not describe warranty or testing, so confirm these in the quote.

Why use a local engine shop

A local shop makes it easy to drop off a core, review parts and talk through choices in person.

Setting a budget and a schedule

Custom engines can vary widely in cost depending on parts and machine work. Be upfront about your budget. A shop can often suggest where money is best spent and where it is not needed. Also be realistic about timing. Parts sometimes take weeks to arrive, and machine work follows in sequence. Ask for an estimated schedule and what could change it.

Ready to start? Request a Quote through Machining Marketplace and we will pass your engine project to Gromm Racing in San Jose.

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