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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

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$2,034.99
$1,799.99
ON SALE - $235.00 OFF
Chevrolet Performance 12681429 GM Goodwrench 350ci Crate Engine 195 HP (Can produce up to 260 HP) $1,799.99
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 41.
    Rated 5 out of 5 by from Fast shipping I ordered on the Black Friday sale, Monday the trucking company called, said they would deliver the next day. Tuesday the truck rolled up, and I had my crate engine sitting in my garage. Don't have it running yet but it's going together as it should. Chevrolet could have sent better instructions, Google is your friend.
    Date published: 2017-12-15
    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
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    What oil do I use to break this engine in?do I need to use a zinc additive?can I use synthetic from the start

    Asked by: Ratrod38
    I would recommend a high zinc break in oil such as JEGS #28067 for the first 250-300 miles then you can switch to a traditional synthetic oil of your choice.
    Answered by: Dean R
    Date published: 2018-01-16

    I bought a 350 cc motor from Jegs, last year. The eng run 210’. I think it was # 809-10067353. Question : is the water pump a non suprrteen Type making the eng run hot?

    Asked by: Crusinlarry
    No, the pulley doesn't matter. If the engine is running hot your radiator or cooling fan are the 2 main components to replace.
    Answered by: Dean R
    Date published: 2018-01-13

    Looking for a crate engine to replace the tired 350 in my rv. It's a 1983 chevrolet class c built on a dually van chassis. G30 I believe. Is this the engine I need?

    Asked by: Jonmr1
    This is compatible with the '83 Chevrolet G30.
    Answered by: Jon Jegs Tech
    Date published: 2018-01-12

    What mechanical fuel pump do you use with this engine? The opening on the block is different than the standard sbc fuel pump.

    Asked by: SDaveN
    You can use any standard mechanical fuel pump with this mounting plate - Part Number: 555-50580
    Answered by: Rusty B
    Date published: 2018-01-12

    There appears to be two dipstick holes? One on each side of the block. I swapped my old dipstick onto this one and kept it on the passenger side but there appears to be another slot on the driver's side. Not sure what to do with it.

    Asked by: natesmyth1
    GM offers plugs for those holes in that oil pan if you are sealing up the driver-side it's GM # 14091563
    Answered by: SteveM
    Date published: 2017-12-29

    Will this fit In a 70 c1500 gmc ? 

    Asked by: Bryanzeek
    Yes this will fit in your truck!
    Answered by: Dean R
    Date published: 2017-12-28

    My 1977 Camaro's motor blew a while back and I was wondering if this would make a good replacement.

    Asked by: Marcosj134
    Yes this is a bolt in motor for you Camaro!
    Answered by: Dean R
    Date published: 2017-12-27

    how much horse power can the engine handle

    Asked by: Seth Anthony
    This engine is designed to produce up to 260 HP with the proper accessories. That is the maximum we would recommend. We have many other engine choices that are designed for more Horsepower.
    Answered by: Rusty B
    Date published: 2017-12-21
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