350 STAGE 1 aka “HUM BABY”


The “Hum Baby” is our world famous small block chevy engine!  She’s a 350 crate engine with 325 horsepower and is a direct replacement for your Chevy classic truck, hot rod, rat rod, boat, or muscle car.  Built for everyday driving, light towing, long distance, or just cruising with the family around town.

When it comes to choosing a 350 crate engine it’s hard to make the right decision.  Have you done enough research?  Are you making a smart investment?  The search can be endless, but we work to make it easy.  Find a company that knows what they’re doing and takes the time to help you understand.  What you should know before buying a cheap engine.


This 350 engine is the perfect swap for classic trucks and muscle cars that run on carburetors such as…

  • C10
  • Shortbed
  • Longbed
  • F100
  • 3100
  • International Scout
  • Cheyenne
  • Scottsdale
  • Squarebody
  • Nova
  • El Camino
  • Camaro
  • Caprice
  • Chevelle
  • Impala
  • Bel Air


In the simplest terms, a crate engine is a full and complete engine that is delivered directly to you – on a crate.  Learn more about crate engines here!


Curious about what makes our 350 crate engine better than the competition?  Our Chevy crate engine uses hydraulic roller cams and lifters, Vortec high output heads and quality name brand parts.  Plus, all engines are precision balanced and blueprinted to ensure quality performance and durability up to 500,000 miles.  To top it all off, we provide a 5 year/50,000-mile warranty covering all manufacture defects including parts and labor, the best in the business!  We take pride in building the best Chevy 350 engine in the industry and have been for years.


From celebrities, knowledgeable mechanics to your average Joe’s – our reputation says it all.  We strive for the best engines and happy customers!  All engines come with name brand parts, built in USA with customized packages tailored to your style (mix n’ match your parts and colors).

No matter if this is your first rodeo or a pro mechanic, we help to make your job easy.  Give us a call today for an instant quote!







For the do-it-yourself customers who already have their own parts to add to the new engine. Fully assembled, your motor includes…

  • 5 Year/50,000 Mile Warranty
  • Cylinder Heads Installed
  • Melling HD Roller Timing Chain
  • Brass Freeze Plugs
  • Gasket Kit for Installation
  • Melling Oil Pump
  • Oil Pan
  • Chrome Valve Covers
  • Timing Cover
  • Harmonic Balancer
  • Paint Job (30 Colors)



Fully equipped engine for an easy installation! Fully assembled, your motor includes…

  • 5 Year/50,000 Mile Warranty
  • Cylinder Heads Installed
  • Melling HD Roller Timing Chain
  • Brass Freeze Plugs
  • Gasket Kit for Installation
  • Melling Oil Pump
  • Oil Pan
  • Chrome Valve Covers
  • Breather
  • Timing Cover
  • Harmonic Balancer
  • Paint Job (30 Colors)
  • Edelbrock Performer Aluminum Intake Manifold
  • 600 Holley Carburetor
  • Holley Fuel Rail
  • HEI SUMMIT RACING Distributor
  • MSD Wires
  • MSD Wire Separators
  • Spark Plugs
  • Water Pump Pulley
  • Crankshaft Pulley
  • Water Pump
  • 180 Degree Thermostat
  • 45 Degree Water Neck
  • GM Dipstick
  • Flexplate


Here you can see 350 crate engine specs, shipping info, and more! Instant quotes: (888) 957-5454

When purchasing an engine online or even in the retail world, it comes as-is with no options. It will be painted black with one style of oil pan, no flywheel, no gaskets, generic intake manifold, generic carburetor, and a warranty that has so much fine print it’s essentially not a warranty whatsoever.

Here at West Coast Engines your engine is fully customized and built-to-order in just a few weeks.  This allows us to accommodate the right oil pan, flywheel, engine color, intake manifold, smog equipment, or anything else that may be important to you! We can also customize the packages if you already have a carburetor or an ignition system and simply deduct it from your order. That way when the engine arrives it’s a QUALITY product that LOOKS, SOUNDS, and PERFORMS the way you want it, making every dollar spent worth the investment.

What does shipping cost?

We ship nationwide across the USA. Shipping on the west coast (Oregon, Washington, California) is FREE! Contact us for pricing for other states.

Can you ship to my house?

Absolutely! We can ship right to your doorstep. The delivery driver will lower the engine from the truck with a liftgate and put it right in your garage with a pallet jack.

Do you ship internationally?

We accept international sales but the shipping outside of the USA is handled by the customer.

Can I pick it up?

For insurance purposes these engines must be delivered to you. These are big 500 lbs engines and we want a professional freight company to handle it with care to protect your investment.

How do I order?

Call us at 1-888-410-7468. We are open 9-5pm PST.

Do I have to pay upfront?

We require 50% down to get an order started and collect the remaining balance when the engine is complete and ready to ship.

  • Horsepower: 325
  • Torque: 370 lbs
  • Gas: 87 Octane (Regular Gas)
  • Max RPM: Idle to 5200 RPM
  • Stall Recommended (not required): Factory
  • Crankshaft: Cast-Iron (All Radius Ground 10/10)
  • Cylinder Heads: Vortec
  • Cylinder Head Gasket: Fel-Pro
  • Cylinder Head Bolts: Elgin
  • Valve Springs: Pioneer
  • Lifters: Elgin HL-2148
  • Valve Size: 1.94/1.60
  • Camshaft: Melling (Roller Hydraulic)
  • Camshaft Lift: .497”
  • Camshaft Duration: 206° Int / 214° Exh. @ .050” Lift
  • Camshaft Lobe Separation: 112
  • Push Rods: Elgin PR-373
  • Rockers: Elgin (1.5 Stamped Steel)
  • Rocker Arm Nut: Pioneer RM-341-100
  • Rocker Arm Ball: Pioneer RM 342-100
  • Rocker Arm Stud: Pioneer
  • Intake Manifold: Edelbrock Performer RPM (Aluminum)
  • Pistons: Federal Mogul (Hypereutectic)
  • Piston Rings: Federal Mogul (Moly)
  • Connecting Rods: GM Forged Powder Metal
  • Timing Set: Melling (HD Roller)
  • Bearings: KING HP Series (Tri-Metal Performance)
  • Carburetor: Holley (600 CFM)
  • Carburetor Mounting Gaskets: Edelbrock
  • Fuel Rail: Holley
  • Balancer: Pioneer (8″)
  • Distributor: Summit Racing (HEI)
  • Wires: MSD (8mm)
  • Spark Plugs: Autolite
  • Pulleys: Spectre / CVF Racing
  • Water Pump: GMB (Long or Short Available)
  • Thermostat: 180 Degrees
  • Gasket Set: Included (Fel-Pro/Victor Reinz)
  • Oil Pan: Engine Quest (5 TQ)
  • Oil Pan Gasket Set: Mahle (Molded Rubber Compound)
  • Oil Pump: Melling (M-55)
  • Dipstick Tub & Stick: GM
  • Flywheel/Flexplate: Pioneer (153 or 168 Tooth)
  • Core: $300.00
  • Total Timing Specs: 33 Degrees @ 2500 RPM

Majority of the industry lacks in quality parts, newer machinery and customer service.  It’s important to look for name brand parts, find real reviews, and do your homework to make sure each company backs up their work.  When doing business with a quality company the expense may be higher, but in the end, you save yourself from a bad experience that could be costly.  For some, spending an extra $500-$1k might not seem ideal, but what happens when you go for a cheap engine?  In most cases, you end up spending that $1k on new parts, more labor, or even worse – a new engine.

What sets us apart from the competition is the people that work here and the culture we provide.  Our customers are the ones who do a lot of research, sometimes years.  With so much of our business being word of mouth, we take a lot of pride ensuring our people are taken care of.  We build a customized, quality product with fast, friendly and flexible service.  Having our customers on our side has allowed us to take our company to the next level, provide for a larger community and expand our business – the right way.  Our success comes from your happiness and we’d love for you to be a part of our success!


  • NO Marketing Gimmicks
  • NO Cheap Parts
  • Great Service
  • Best Machining Processes in the Industry
  • Custom Hand-Built to Fit Your Vehicle in Just 3-5 Weeks
  • 40+ Years Behind Our Products
  • Includes Full Break-In Guide for First 5,000 Miles
  • Big Nationwide Warranties
  • Business & Residential Delivery
  • Available (Includes Lift-Gate Service)
  • Custom Performance Camshaft to Fit Your Lifestyle
  • Includes Custom Paint Job
  • Built for Long Distance Driving,
  • Cruising, Street Performance (NOT RACING)
  • Low Maintenance and Easy to Tune
  • Runs on Normal Gas (NOT RACING GAS)
  • Includes Flexplate or Flywheel for Transmission
  • External Balancing Close to 1 Gram (NO VIBRATIONS)
  • Performance Gasket Kit for Installation
  • We Operate Only in the USA

If your state is listed above then you are eligible for a core exchange! Core charge/deposit is $300.00 on top of the engine price.

Core facts:

  • Core freight is FREE for eligible customers
  • Core is picked up AFTER engine is delivered (not at the same time).
  • You have 3 months to return your core after the engine is delivered
  • Core instructions will be emailed to you after purchase
  • Must be a 350 (any year, 2 or 4 bolt is fine)
  • Yes, you may keep your core!
  • Core checks are sent within 60 days after core is mailed off

What is a core?

A core is an old engine. It constists of the block, heads, crankshaft, and connecting rods.

Our nationwide warranty for the 350 crate engine is a whopping 5 years or 50,000 miles. Why? Because we take pride in the engines we build knowing they are our best when they leave here. We use a common-sense and personable approach getting you back on the road as quickly as possible if anything were to happen.

  • Covers all manufacture defects
  • Includes self-installation
  • Includes labor to pro mechanics for repairs at $50/hour up to $850
  • Includes all parts
  • Includes leaks up to 90 days after start-up


  • No returns on any performance engines whatsoever once it’s shipped
  • 25% cancellation fee prior to engine being shipping. This initiates after a credit card transaction is processed.
  • Freight is non-refundable


Upgrade your 350 crate engine with belt systems, starters, and more! Instant quotes: (888) 957-5454


Browse our picture gallery of some engines to collect ideas for your next small block Chevy engine!

“This engine has so much more performance and fuel economy it’s unbelieable. They were extremely helpful and the engine builder was so knowledgable. Was a great experience and I would do it 100x over! I was referred to West Coast Engines by a mechanic buddy of mine that has been in car racing for 30 years. He’s been doing business with Brady for hot rod engines for years. Anyone that’s interested in performance engines that are street friendly and run on regular gas this is your place.”

Gerald Frazier

“I bought my stage 5 engine from West Coast Engines and I could not be happier with my decision. It is the perfect setup for my 56 Chevy truck. After weeks of research and several conversations with Brady, I determined that he was the most informed and knowledgeable person that I spoke to in my search for the right powertrain for my truck. I recommend anyone who is building a car or truck that wants the peace of mind that goes with having a full warranty on a bad ass engine, to call the guys at West Coast Engines you will not be disappointed!”

Ryan Glantz


Call Us: (888) 957-5454
Email: Sales@WestCoastEngines.com

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