GM/Chevrolet 5.7 350 - Production Years 1986

Description

In 1986, Chevy 350s included a 1 piece rear seal. This was a permanent swap and Chevy/GM 350, and other small block engines, kept the one piece rear seal.

This engine is the last 350 to feature a mechanical fuel pump. All 350s swapped over to TBI starting in 1987.

The 1986 Chevy 350 was used exclusively in GM’s line of pickups and vans, including the Chevy C & K body trucks, Suburbans, and some models of Blazer and Jimmys.

Variations of this engine were also in the G & P body vans.

Makes & Models

1986 Chevy/GM 350s were shipped in Chevy and GMC trucks and vans, including

• C Body Trucks
• K Body Trucks
• Suburbans
• Blazers
• Jimmys
• G body vans
• P body vans

2-Bolt Chevy 350s

Two-bolt 1986 Chevy 350s were predominantly found in GM/Chevy’s line of trucks, Suburbans, and Jimmy’s.

They’re more common than their four-bolt counterparts. They’re sufficient for most applications, though high-powered builds may require a four-bolt engine.

4-Bolt Chevy 350s

Four-bolt 1986 350s were found in some of the larger trucks, vans, and Suburbans released that year.

Four-bolt engines are adequate for high-powered builds and can handle a torque of 11:1 and higher and vehicles with 400 or more horsepower.

1986 Chevy 350s from MABBCO

Short Block Chevy 350s

• 2-Bolt Main Chevy 350 Short Block
• 4-Bolt Main Chevy 350 Short Block

Long Block Chevy 350s

• 2-Bolt Main Chevy 350 Long Block
• 4-Bolt Main Chevy 350 Long Block

Chevy 350 Camshafts, Cylinder Heads, and More

• Big Valve 350 Cylinder Head (1980-1986)
• Standard Chevy 350 Cylinder Heads (1980-1986)
• Chevy 350 Crankshaft (1986-2008)
• Chevy 350 Rebuild Kit (1986)

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