Drop some performance into your Street Rod, Muscle Car or Truck with these genuine GM Performance engines! All GM Performance engines include a 24 Month 50,000 mile warranty. These 350 HO Turn-Key crate engines are packed with all the features you need to get a reliable 330 horsepower and 380 lb.-ft. of torque from a dependable, time-tested combination of GM Performance Parts. Of course, all of the components used in this engine are brand new – not remanufactured parts. The 350 HO Turn-Key is a great choice for your small-block crate engine needs, based on a tough, Chevy four-bolt block that holds a strong nodular iron crankshaft, good rods, and aluminum pistons. The high-lift camshaft gives the engine its own unique, aggressive idle. The cam is based on the same one found in 1965-67 Corvette 327 engines, but it has even more lift and duration. Complete from top to bottom, the 350 HO comes pre-assembled with the intake manifold, carburetor, water pump, and distributor. With the Turn-Key trim level, you also get everything you need for a complete, running engine right out of the crate. We ship it with an accessory drive package, fuel pump, starter, and spark plug wires included in the package (not installed). The 350 HO Turn-Key crate engine offers you an incredible performance value – all you need to do is add the fuel and enjoy!

Complete from top to bottom
Four-bolt block
330 HP @ 5000 RPM
380 ft.lbs. of torque @ 3800 RPM
4.00" x 3.48" bore x stroke
9.1:1 compression
92 octane recommended fuel
Cam lift: .435" intake / .460" exhaust
Lobe separation: 112.5°
1.5:1 ratio stamped rocker arms
Nodular iron crankshaft, good rods, and aluminum pistons
Ships with an accessory drive package, fuel pump, starter, and spark plug wires (not installed)
24 Month 50,000 mile warranty

Start-Up / Break-in Procedure (PDF)

19210008 Service Parts List (PDF)

19210008 Installation Guide 1 (PDF)

19210008 Installation Guide 2 (PDF)

Warning: Not Intended For Marine Use

Features

Includes:

Fully assembled long block
Chrome steel valve covers with Chevy Bowtie logo
Chrome 14" air cleaner
Oil pump, pick-up, oil pan
Aluminum intake manifold
Holley 670cfm carburetor
HEI distributor, plug wires, looms, spark plugs
12-3/4" automatic transmission flexplate
8" harmonic balancer
Front timing cover
Heavy duty starter w/bolts
Oil filter and adapter
Serpentine drive system with air conditioning (included but not installed)
Passenger side RH oil dipstick and tube

Application

Possible Applications -

Replace that V-6 with some all-American V-8 muscle
Restore your muscle car with a little bit more than stock
Best for use with stock Small Block Chevy vehicles

*Applications have not been validated. They are merely suggestions of how you might enjoy your GM Performance Parts crate engine. Some applications may affect engine warranty. Some applications may not be emission legal; check state and local ordinances."

Warranty Information

Warranty Information (PDF)

Ratings & Reviews

4.8

4 Reviews

Overall Assessment

Customers highlight our product's superior value, strong performance, and outstanding quality. They appreciate its smoothness, making it ideal for both cruising and car shows. Despite some initial assembly requirements, the engine's performance post-assembly has been positively reviewed, and it has been confirmed that our product is more competitively priced compared to others on the market. The fact that our company provides prompt and knowledgeable service also forms a positive contrast against rivals. Overall, the usability and quality material of this engine sets it apart in the market.

Write A Review

4.8

4 reviews

Filter by Ratings

Sort Reviews

Great value, great service

5.0

5 years ago

Phoenix, AZ

Verified

Great value considering this engine comes with basically everything.

Would Recommend

This motor is very smooth and super strong.

5.0

7 years ago

Denny

Kingston, Tennessee

Verified

Cruising and car shows.

Would Recommend

I will do more business with this company

5.0

10 years ago

GrayLaser

San Antonio

Verified

I was impressed with the fact that they answered the phone promptly......the pleasant voice on the phone answered my questions..........the price was very competitive........they shipped my merchandise quickly and it arrived with no damage....I will do more business with this company

Would Recommend

NOT TURN_KEY

4.0

11 years ago

Fejdriab

Texas

Verified

Bought the engine and thought it was turn-key, except it said there was SOME assembly required. I had the engine shipped to the repair shop, and it took them over 4 hours just to assemble the loose components. Turn-key is supposed to mean "ready out of the box". Apparently their definition and my definition of turn-key differs. Overall though, the engine is performing well.

Would Recommend

Showing 4 of 4 reviews

Questions & Answers

13 Questions • 10 Answers

Sort Questions

Hi there I have a 1967 camaro with a Muncie M21 4 speed and a 621 bell housing will a SP 350/357 crate motor just bolt right up? My understanding is that after 1985 the 350 engine was changed for the 1 piece rear seal and the flywheel flange. Thanks Steve

by steve

• 5 years ago

1 answer

View Answer

Could I put a dual Edelbrock carb on it

by 67chevyboy

• 8 years ago

1 answer

View Answer

I dont have air conditioning.Can i remove the pump or will it be ok to leave it on ?

by Richard

• 8 years ago

1 answer

View Answer

is ignition timing set and engine broken in?

by Chris

• 9 years ago

1 answer

View Answer

Is this motor capable of handling a supercharger? If so what kind would you recommend?

by Bookem

• 9 years ago

1 answer

View Answer

spark plugs? are they straight or angled?

by chris

• 10 years ago

1 answer

View Answer

What is the output of the alternator

by hawk

• 10 years ago

1 answer

View Answer

What stall is recommended for this crate engine when using a TH350 in a tri-five?

by Laidback Luis

• 10 years ago

1 answer

View Answer

Is this engine internally balanced? From what I can read it is not and requires a weighted fly wheel and harmonic balancer. I have installed a new weighted fly wheel and balancer and have a slight vibration on idle which is stronger on deceleration. Any idea why or what I can do?

by Steve

• 11 years ago

1 answer

View Answer

What automatic transmission would be an idea fit for this engine. Looking for smooth quick shifting

by Black Jack

• 11 years ago

1 answer

View Answer

Load More Questions

10 of 13 questions shown