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GMP-TH350290HP-K - Pace GM 290HP Base Engine with TH350 Trans Package

This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.

Availability: Discontinued
Shipping: FREE 48 State Shipping


All New Pace Exclusive GM 350CID 290HP Assembled Base Engine with TH350 Transmission Combo Package

The 350/290 HP is the most popular GM Performance Parts crate engine because no one can deliver such performance for this kind of value. GM Performance Parts believes that everyone should be able to afford a high quality GM V-8 without going broke. The 350/290 is an answer to those car crafters who demand maximum return on their money. But, just because it's affordable, don't think that it's a stone. The 350/290 delivers 290 hp @ 5100 rpm and a solid 326 lb. -ft. of torque at 3750 rpm. With those kinds of numbers, it's the perfect replacement engine for the millions of GM vehicles that shipped with a small-block.

Power: 290 HP @5250 RPM, 332 ft. lbs. of torque @ 3750 RPM
Displacement: 350 CID, 5.7L
Bore x Stroke: 4.00” x 3.48”
Compression Ratio: 8.5:1
Recommended Fuel: 87 Octane
Block: Cast Iron, 2 piece rear seal, 4-bolt main caps
Crankshaft: Nodular Iron
Connecting Rods: Powdered Metal Steel
Pistons: Cast Aluminum
Camshaft: Hydraulic Flat Tappet
Cam Lift: .450” Intake / .460” exhaust
Cam Duration @ .050”: 222deg. Intake / 222 deg. Exhaust
Lobe Separation: 112 Degree
Cylinder Heads: Cast Iron, 3/8” pressed in rocker studs
Combustion Chamber: 76cc
Valves: .194” Intake/ 1.50” Exhaust
Rocker Arms: Stamped Steel, 1.5:1 Ratio
Valve Springs:3911068
Balance: Internal
Maximum GM Recommended RPM: 5100
Ignition Timing: Base 10 degrees BTDC, 32 degrees total

Cylinder Head Notes: 7 Bolt style Exhaust Flange Standard, 85' and prior intake manifold bolt pattern. Perimeter bolt style Valve Covers. This head is very similar to the old #882 castings from the 1970's.

Engine Includes:
• Fully GM assembled long block
• Stamped steel OE valve covers
• Oil pump, pick-up and oil pan
• Aluminum Performance Intake
• Holley 670CFM Carb
• Fuel Pump and Fuel Line to Carb
• HEI Distributor, Plug Wires, Looms and Plugs
• 14” Auto Trans Flexplate
• HD Starter and Bolts
• 6” Harmonic Balancer
• Front timing cover
• Oil Filter and Adapter
• Drivers Side LH Oil Dipstick and Tube

General Motors limited 2 year / 50,000 mile parts & labor warranty. Click on Document tab above for full details.

TH350 transmission package designed for use with Chevrolet Performance SBC 350CID 290HP crate engine.

Performance Automatic, in its never ending quest to stay on top of today’s need for modern day transmission packages, has come up with an addition to its popular Street Smart Packages. The PAGM Series Street Smart Systems are exclusively designed to complement selected GMPP Crate Engines. The GMPP Crate Engines have been increasingly popular with Street Rodders and Muscle Car enthusiasts alike. Performance Automatic has developed customized overdrive transmission packages and has made it easy to pick a combination for your vehicle. The PAGM Series Packages have been designed for both performance and street ability. These kits also include all the necessary transmission components to complete the installation.

The PAGM TH350 kit utilized the Street Smart Converter that is designed to give that “stop light to stop light” performance and to stretch that tank full of gas running down the highway in lock up. The PAGM series also provides you with a complete hardware kit consisting of all the nuts and bolts needed for your particular combination.

Performance Automatic PAGM series transmissions are specifically designed and tuned for use behind most of the Chevrolet Performance crate engines. The PAGM transmissions include the proper torque converter, beefed-up internal components, shift patterns and pressures to match the Chevrolet Performance crate engines cam profile, HP rating, torque curve and RPM range. Each transmission is dyno tested.

PAGM Transmission Package Includes :

• Stage 2 TH350 transmission
• Torque Converter
• Transmission Dipstick and Tube
• Kick-Down Cable
• Converter Dust Shield
• HD Transmission Mount
• HD Aluminum Pan
• Steel orficed modulator vacuum line
• Speedo Gear and Housing
• Complete mounting hardware kit and instructions

Performance Automatic PAGM limited 2 year warranty. Click on Document tab above for full details.

Click Here to see all our Engine & Trans Combo Packages

Application List



  • GMP-TH350290HP-K
  • GMP-TH350290HP-K
  • PACE Performance
  • Discontinued
  • New


Shipping Information

  • Item Requires Shipping
  • 500.0 lbs.
  • FREE 48 State Shipping

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