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350 ENGINE 420 HP







For the do-it-yourself customers who already have their own parts to install.

  • 5 Year/50,000 Mile Warranty
  • Long Block Engine
  • Spin Tested
  • Gasket Kit for Installation
  • Melling Oil Pump
  • Oil Pan
  • Valve Covers (Painted or Chrome)
  • Timing Cover
  • Balancer
  • Standard Paint Job



Fully dressed for an easy install. Bolt on a starter, fuel pump, alternator and she’s ready to fire-up!

  • 5 Year/50,000 Mile Warranty
  • Long Block Engine
  • Spin Tested
  • Gasket Kit for Installation
  • Melling Oil Pump
  • Oil Pan
  • Valve Covers
  • Timing Cover
  • Balancer
  • Standard Paint Job
  • Edelbrock Intake Manifold
  • 670 Holley Carburetor
  • Holley Fuel Rail
  • HEI Distributor
  • MSD Wires
  • Wire Separators
  • Spark Plugs
  • Water Pump Pulley
  • Crankshaft Pulley
  • Water Pump
  • Thermostat
  • Dipstick



“Drop-it-in-and-go” setup for the most complete engine in the industry. A/C, alternator, power steering, plus that sweet looking serpentine belt system!

  • 5 Year/50,000 mile Warranty
  • Cylinder Heads Installed
  • Brass Freeze Plugs
  • HD Roller Timing
  • Spin Tested
  • Gasket Kit for Installation
  • Melling Oil Pump
  • Oil Pan
  • Chrome Valve Covers
  • Timing Cover
  • Balancer
  • Standard Paint Job
  • Edelbrock Intake Manifold (chrome in photo is +$200)
  • 670 Holley Carburetor
  • Holley Fuel Rail
  • Summit Racing HEI Distributor
  • MSD Wires
  • Wire Separators
  • Spark Plugs
  • Water Pump Pulley
  • Crankshaft Pulley
  • Water Pump
  • 180 Degree Thermostat
  • Water Neck
  • GM Dipstick
  • Powermaster 9100 High Torque Mini Starter
  • Holley Mechanical Fuel Pump
  • Holley Fuel Line to Carburetor
  • Fully Assembled and Installed Serpentine System (Available in Black or Polished Aluminum)
  • 140 Amp Chrome 1-Wire CS130 Alternator
  • Aluminum GM Type II Power Steering Pump
  • Remote Mount Reservoir with Bracket
  • Gates Premium Green Strip 8 Rib Belt
  • Water Pump Pulley & Cover
    Crank Pulley
  • Crank Pulley Spacer
  • Alternator Pulley & Cover
  • Power Steering Pulley
  • One Piece Billet Aluminum Bracket
  • Universal Alternator Fan


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

We offer FREE shipping to all 49 States (except Hawaii).


  • Residential Delivery: FREE
  • Business Delivery: FREE
  • Applicable West Coast States: California, Oregon, Washington


  • Pick up your engine at a local freight terminal near you: FREE
  • Residential Delivery with Lift Gate & Pallet Jack Services: $199.00
  • Delivery to a Business: $149.00
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 offer FREE shipping to all 49 states (except Hawaii).  Shipping on the West Coast (Oregon, Washington, California) is FREE!  Nationwide free shipping is applicable when engine is picked up at local freight terminal.  Nationwide residential shipping is a flat rate of $149.00 and nationwide business shipping is a flat rate of $99.00.

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 1-888-957-5454. 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: 430
  • Torque: 420 lbs
  • Gas: 91 Octane (Premium Unleaded Gas)
  • Max RPM: Idle to 5500 RPM
  • Stall Recommended: 2300-2500
  • Crankshaft: Scat (Steel)
  • Cylinder Heads: ProMaxxx Aluminum (64cc/195cc)
  • Cylinder Head Gasket: Fel-Pro
  • Cylinder Head Bolts: Elgin
  • Valve Springs: Pioneer
  • Lifters: COMP Cams
  • Valve Size: 2.02/1.60
  • Camshaft: COMP Cams
  • Camshaft Lift: .540”
  • Camshaft Duration: 230° Int / 234° Exh. @ .050” Lift
  • Camshaft Lobe Separation: 110
  • Push Rods: COMP Cams
  • Rockers: Elgin SSR (1.6 Roller Rocker)
  • 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 (770 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

*All Parts are subject to change due to availability.  Substituted parts are of equal quality and durability to maintain advertised performance* 

Why should you use our 350 engine with 420 horsepower over the competition?  We use aluminum heads and roller rockers, scat steel crankshaft, GM heavy duty forged rods, Vortec high output heads and all engines are precision balanced and blueprinted to ensure quality performance and durability up to 500,000 miles.

Not just that, but we include a 5 year/50,000-mile warranty covering all manufacture defects, the best in the business!  We take pride in building the best Chevy 350 engine in the industry and have been for years.

This Chevy 350 engine is Hollywood, no doubt.  With its quality parts and head-turning sound, it’s a show-stopper for sure!  Consumers who have done their research and explored their 350 engine options tend to fall in love with this 350 420 HP crate engine.  Simply because it’s backed with name brand quality and performance that gives people the piece of mind they need.  This engine is built for everyday practicality and long-lasting drivability and could possibly win you a Grammy.
What are cast irons heads?  Cast iron heads were used for vehicles in the 90’s and older.  They’re outdated and no longer used in vehicles because they’re heavy and they retain heat.  Regardless if you buy your engine from GM or any other builder, cast iron heads run into the same problem with valvetrain reliability.

How do they work?  Heads are like the lungs of your engine, it’s the part that breathes.  Cast iron cylinder heads sit on top of pistons and flow air into the engine.  Aluminum heads are able to do this more efficiently.

Why aluminum heads?  Cast irons heads are weaker under heat causing them to potentially crack over time.  Not only that, but they valvetrain is at risk because cast iron flaws compromise the valvetrain.  Aluminum heads are lighter and allow the engine to run cooler.  They have a stronger design that allows better precision for proper valvetrain alignment.  Essentially, they’re more reliable, more efficient and improve engine performance.

Many people don’t understand the real reason why aluminum heads are a better deal.  Most assume it’s solely for more horsepower, but really what you’re doing is protecting your investment.  In the long run, the cost is a couple hundred bucks higher, but you’ll save money in the end and have piece of mind that you’re engine is performing at its optimal ability.

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 chevy 350 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 all parts
  • Includes leaks up to 90 days after start-up


Learn more about West Coast Engines, Our team and why we’re the best choice by clicking this link to our About Us Page.
  • 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
From celebrities, knowledgeable mechanics to your regular 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 customizable 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!


Upgrade your chevy 350 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

“Starting researching new motors. Went through all the big guys. Discovered Brady at West Coast Engines… was a little hesitant at first but he proved himself to be a righteous business man. Provided everything he said and service was amazing. Everything came on time. Easy to put in, friend and I did it, backed it up with a 700R4… the engine is amazing, no issues, very smooth, I’m happy, and everyone I know is amazed with it even my mechanic buddies!” Darryll Goodman