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Chevrolet Performance 12681429K9

GM Goodwrench 350 Engine Components Package 9

Chevrolet Performance 12681429K9
Easy Kit


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Estimated ship date 04/09/18 if Ordered Today
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Chevrolet Performance 12681429K9 GM Goodwrench 350 Engine Components Package 9 $3,040.34
GM Goodwrench 350 Engine Components Package 9
  • GM Goodwrench 350ci Engine
  • JEGS TH350 Performance Transmission/12" Torque Converter/Transmission Fluid/Flexplate
  • RPC Transmission Dipstick
  • Bolts

  • Chevrolet Performance 12681429K9 Details

    Engine Components Packages

    350 Engine Components Package 9 Includes:

  • GM Goodwrench 350ci Engine - p/n 809-12681429
  • JEGS TH350 Performance Transmission - p/n 555-60300
  • JEGS GM TH350/TH400 12'' Torque Converter - p/n 555-60402
  • JEGS Heavy-Duty SFI Flexplate - p/n 555-601071
  • ARP High-Performance Series Flexplate Bolt Kit - p/n 070-100-2901
  • JEGS Torque Converter Bolt Kit - p/n 555-82501
  • JEGS Automatic Transmission-to-Block Bolt Set - p/n 555-82510
  • Proform Chrome Transmission Dipstick - p/n 778-66118
  • JEGS Quick Shift Automatic Transmission Fluid (8 Quarts) - p/n 555-28070
  • 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!


    • 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

    12681429K9 - GM Goodwrench 350ci Crate Engine & Packages is rated 5.0 out of 5 by 1.
    Rated 5 out of 5 by from Things to know about this kit. The dipstick that is included with this kit is terrible. The chrome plating flakes off and could get in the transmission. The transmission can come as BOP or Chevy. I had to reuse the tail-shaft and speedometer gears from the old transmission, since mine showed up as a BOP tail-shaft. It says this in the transmission's details, but not on this kit. I also had to track down the info about the dowel pins that are included with the engine. They are for blocking off the dipstick holes. You do not have to purchase the sheet metal covers that are suggested at the bottom of the page. The transmission and engine ship via freight on pallets at separate times. The other parts show up way before hand.
    Date published: 2017-11-16
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    Will this motor & transmission  fit into my 93 Silverado with no problem ? 

    Asked by: antman
    You will have to work with the induction system, but is you are replacing a 350 engine and a turbo series transmission then this will work.
    Answered by: Rusty B
    Date published: 2018-02-08

    Is there any way to get a complete 350 with this kit or do I have to get alt intake carb and all separate???

    Asked by: Jaxon87
    We have many different kits available, you can order a base kit and add any components you need to it. Or call our tech line 800-345-4545 for help in choosing the right parts for your application
    Answered by: Rusty B
    Date published: 2017-10-24

    Can I have this shipped before Jan, 2018. I would like to get it as soon as possible.

    Asked by: Klassic
    We have everything in stock except the transmission which we can source from a different vendor, please call or tech line to discuss your options.
    Answered by: Rusty B
    Date published: 2017-09-19

    Can I get this package with a 290 horsepower 350 & what is price?

    Asked by: Zoomzoom
    We are able to change items such as the engine in this particular kit. For pricing on the changes you are seeking please call our sales team 800-345-4545 or use our Ask A Tech email.
    Answered by: Jegs Tech
    Date published: 2017-08-21
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