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Chevrolet Performance 12681429

GM Goodwrench 350ci Crate Engine 195 HP (Can produce up to 260 HP)

Chevrolet Performance 12681429

809-12681429

Chevrolet Performance 12681429 GM Goodwrench 350ci Crate Engine 195 HP (Can produce up to 260 HP) $1,799.99
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Chevrolet Performance GM 5.7L 350 Long Block Cast Iron Truck Engine 1996-2000 Chevy/GMC Truck/SUV/Van
Chevrolet Performance 809-12530282
$2,019.99
View Details
GM Goodwrench 350ci Crate Engine
  • Replacement for 809-10067353
  • 195 HP (Can produce up to 260 HP)
  • 4-Bolt Main
  • 3-Year/100,000-Mile Warranty
  • Some exclusions may apply

  • Chevrolet Performance 12681429 Details

    Crate Engine

    Specifications

  • 4-bolt main with 2-piece rear main seal
  • Nodular iron crankshaft
  • 4.000'' bore x 3.480'' stroke
  • Internal balance
  • LT1/LT4 powdered metal connecting rods
  • Cast aluminum pistons (dished)
  • 8.5:1 compression ratio
  • Hydraulic flat tappet cam (.383"/.401" Lift, 194 / 202 Duration @ .050", and 112° lobe separation)
  • Cast iron cylinder heads with 76cc chambers
  • 1.940'' Intake / 1.500'' Exhaust valves
  • 1.250'' diameter valve springs
  • 1.5:1 ratio rocker arms
  • 3/8'' pressed-in rocker studs
  • Block is compatible with left or right side oil dipstick (Requires Plug for Unused Side - sold separately) - p/n 809-14091563 left side plug; or p/n 809-9421743 right side plug
  • 4-quart oil pan
  • Oil pump, oil pump pickup and oil pump drive shaft installed
  • Includes timing tabs for a 6-3/4" or an 8" balancer (balancer not included)
  • Recommended spark plug: 14mm thread, .460" reach, 5/8" hex, tapered seat, projected tip (AC Delco p/n 065-R45TSAutolite p/n 417-144)
  • Not Intended for Marine Use
  • Requires p/n 809-19299222 or p/n 555-23605 Oil filter adapter (not included)
  • Not Intended for Marine Use
  • No core charge 

    Major Components NOT Included:
  • Starter
  • Flexplate/Flywheel
  • Harmonic Balancer & Bolt
  • Water Pump
  • Intake Manifold
  • Carburetor
  • Fuel Pump
  • Fuel Pump Pushrod
  • Distributor
  • Spark Plugs & Wires
  • Oil & Filter
  • Gaskets
  • Motor Mounts
  • Specifications:

    Quantity
    1
    Assembled
    Yes
    Cylinder Heads Included
    Yes
    Flexplate Included
    No
    Flywheel Included
    No
    Harmonic Balancer Included
    No
    Intake Manifold Included
    No
    Oil Pan Included
    Yes
    Timing Cover Included
    Yes
    Carburetor Included
    No
    Computer Included
    No
    Distributor Included
    No
    Engine Assembly Style
    Long block
    Spark Plug Wires Included
    No
    Spark Plugs Included
    No
    Throttle Body Included
    No
    Valve Covers Included
    Yes
    Water Pump Included
    No
    Wiring Harness Included
    No
    Air Cleaner Included
    No
    Rear Main Seal Style
    2-piece
    Engine Balance
    Internal
    Cylinder Head Material
    Cast iron
    Manufacturer's Part Number:
    12681429

    Free Shipping!

    This universal 350 engine uses a brand new block and can be a replacement in most 1973-85 GM vehicles and retrofitted into virtually any vehicle. At a base horsepower of 195, the engine can produce up to 260 HP and 350 ft/lbs torque with a 4-bbl carburetor and headers. The engine is covered by a GM warranty for three years or 100,000 miles in applicable GM vehicles only. JEGS has the GM Goodwrench Chevy 350 for sale at a great price!

    Specifications

    • 4-bolt main with 2-piece rear main seal
    • Nodular iron crankshaft
    • 4.000" bore x 3.480" stroke
    • Internal balance
    • LT1/LT4 powdered metal connecting rods
    • Cast aluminum pistons (dished)
    • 8.5:1 compression ratio
    • Hydraulic flat tappet cam (.383"/.401" Lift, 194 / 202 Duration @ .050", and 112° lobe separation)
    • Cast iron cylinder heads with 76cc chambers
    • 1.940" Intake / 1.500" Exhaust valves
    • 1.250" diameter valve springs
    • 1.5:1 ratio rocker arms
    • 3/8" pressed-in rocker studs
    • Block is compatible with left or right side oil dipstick (Requires Plug for Unused Side - sold separately) - p/n 809-14091563 left side plug; or p/n 809-9421743 right side plug
    • 4-quart oil pan
    • Oil pump, oil pump pickup and oil pump drive shaft installed
    • Includes timing tabs for a 6-3/4" or an 8" balancer (balancer not included)
    • Recommended spark plug: 14mm thread, .460" reach, 5/8" hex, tapered seat, projected tip (AC Delco p/n 065-R45TSAutolite p/n 417-144)
    • Requires p/n 809-19299222 or p/n 555-23605 Oil filter adapter (not included)
    • Not Intended for Marine Use
    • No core charge

       JEGS Easy Kits are designed by JEGS high performance racing professionals to help you get all the performance parts you need for your race car, hot rod or truck.

    GM Warranty

    Chevy Crate Engine Break-In Guide

    12681429 - GM Goodwrench 350ci Crate Engine & Packages is rated 4.5 out of 5 by 40.
    Rated 5 out of 5 by from Chevy Motor and Jegs Bought the motor for 1976 Blazer K5 Chalet. Bought with the carb , distributor , and intake and valve covers. Arrived very quickly 3 days. The install went smoothly. Fired right up and broke in the cam as described in the instructions. Have 150 miles on it now and very impressed with the product. Great power and low end torque. Changed oil at 100 miles and am ready for a road trip to go deer hunting. This is a great product and the Jegs Tech adviser answered all my questions prior to purchase. This motor has the 260 HP easily. I think its probably closer to 285 the way it is set up with the headers. The Jegs company will get my business from here on out on products they sell. Gret product great price and a great buying experience.
    Date published: 2017-09-04
    Rated 5 out of 5 by from Best Buy for the Money I built 1932 Fords, I have bought 7 or 8 of the Crate 350 Chevrolet engines from Jegs. I have never had a problem with any of them. They start up and run extremely well, no oil leaks, great oil pressure. I install 3 deuce carb. intake for that hot rod look. It don't get any better than that. What a great way to put a hot rod together. You better believe that I would recommend a great deal like this to anyone.
    Date published: 2016-09-18
    Rated 5 out of 5 by from great motor Great dependable motor with good warranty and great price.
    Date published: 2016-08-06
    Rated 5 out of 5 by from Great Replacement Engine This is my second engine The first one has 285k on it and is still running strong I'm going to replace it before it fails and rebuild it myself and keep it for next time
    Date published: 2016-04-14
    Rated 5 out of 5 by from Great buy Great alternative to finding a machine shop witch is getting very hard to find. The freight carrier was outstanding !!
    Date published: 2016-03-03
    Rated 5 out of 5 by from great service fast shipping Great service and it got here super fast. Have not installed it yet but it looks great. It's going to be a great addition to my 61 c10 project.
    Date published: 2016-02-01
    Rated 5 out of 5 by from Engine arrived promptly and in excellent condition. A good deal at a great price!
    Date published: 2016-01-17
    Rated 5 out of 5 by from Nice Bought this motor for my "old school" 40's truck. Got 400 miles on it to date. Edelbrock intake and carb, headers, HEI and TCI 350 trans. Runs good and makes good power. Just what I needed for the street. I'm not going racing ya know. It does leak a little oil at the rear seal though. I wish it was made in the USA.
    Date published: 2015-11-10
    • y_2017, m_11, d_22, h_3
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.3
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    • clientName_jegs

    What range of year models will this engine fit for 80's series ck trucks?

    Asked by: Tylerwood
    This engine is made to fit 1973-85 GM vehicles.
    Answered by: Rusty B
    Date published: 2017-11-13

    I have 1963 Chev w/ a 283 and a 3 speed trans, will this motor fit? Can I use the same intake manifold, and not the same valve covers? If the old manifold w/ the stock 2 barrel won't work is there a manifold and carb that you would recommend?

    Asked by: wilham60
    This engine is compatible with all of your 283 accessories.
    Answered by: Jon Jegs Tech
    Date published: 2017-11-08

    Whats the spring rating o. The valve springs 500lift ?

    Asked by: Tomkatt
    No, we do not recommend using more than a .450" lift cam with this engine. Changing the cam will void the warranty.
    Answered by: Rusty B
    Date published: 2017-11-06

    I have a 72 chevy k20 with original quadrajet 750 and intake th350 trans what idle should I set the engine to?

    Asked by: 72k20steve
    With a stock motor your engine idle would be around 800rpm
    Answered by: Jegs Tech
    Date published: 2017-11-05

    Where do I find Engine specifications about timing degrees 

    Asked by: Fjjliny
    You would start by using the original timing specs for your application.
    Answered by: Rusty B
    Date published: 2017-10-23

    Does the engine come with all oil galley plugs already installed?

    Asked by: JP67
    All oil galley plugs are installed.
    Answered by: Jegs Tech
    Date published: 2017-10-17

    Will a performance camshaft give more hp, if yes what would you advies?  Thanks

    Asked by: Dude67
    YOu might be able to add a small amount of power, but the heads and pistons are only designed to support the 260 hp that this engine state it is capable of.
    Answered by: Rusty B
    Date published: 2017-10-19

    Will this work for a 1980 el camino 

    Asked by: Christopher Taylor
    Yes, this should work in your application.
    Answered by: Rusty B
    Date published: 2017-11-18
    • y_2017, m_11, d_22, h_3CST
    • bvseo_bulk, prod_bvqa, vn_bulk_2.0.3
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_20
    • loc_en_US, sid_10001_10001_3866158, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs
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