chengny
Full Access Member
- Joined
- Feb 22, 2012
- Posts
- 4,084
- Reaction score
- 1,029
- Location
- NH
- First Name
- Jerry
- Truck Year
- 1986
- Truck Model
- K3500
- Engine Size
- 350/5.7
The following must be correct because... I found it on the internet. And as everyone knows - if it's on the internet it has to be true, right?
Not! See my bold italics in the second paragraph:
Chevrolet Targetmaster Specifications
The Chevrolet Targetmaster 350-cubic-inch V-8 engine was a replacement engine for pre-1986 Chevrolet vehicles. Chevy later renamed the Targetmaster the Goodwrench 350, which was part of General Motors' Goodwrench service/parts network. The Goodwrench program was terminated in February 2011.
Inexpensive Replacement
The Targetmaster 350 began production in 1981 in Mexico. It was a basic, no-frills engine that featured a one-piece rear main seal, which was characteristic of all pre-1986 Chevy small-block engines. The seal permitted Chevy owners to swap virtually any engine with Targetmaster without changing the flywheel or flexplate.
Specifications
The Targetmaster 350, and later the Goodwrench 350, featured the same dimensions as the original 350 with a 4-inch cylinder bore and 3.48-inch stroke. The compression ratio, however, was lower than the 1960s versions at only 8.1:1-to-1. The low compression ratio allowed the Targetmaster to run on 87-octane fuel. The lower compression ratio also sapped the 350's power with a horsepower rating of 190. Torque was 250 foot-pounds. Independent testing reported the Targetmaster was capable of up to 238 horsepower and 324 foot-pounds of torque.
Other GM Cars
Chevy's Targetmaster was not a replacement engine for other General Motors vehicles, such as Buick, Pontiac and Oldsmobile. These cars featured 350 V-8s, but were not related to the Targetmaster/Goodwrench engines.
Goodwrench
The GM Goodwrench 350 crate engine comes in several variations. The lowest priced uses the pre-1986 four-bolt casting molds with two dipstick locations; pre-1980 on the driver's side and post-1980 on the passenger's side. This engine was produced in Mexico since 1981 as the Targetmaster 350, and now the GM Goodwrench 350.
Not! See my bold italics in the second paragraph:
Chevrolet Targetmaster Specifications
The Chevrolet Targetmaster 350-cubic-inch V-8 engine was a replacement engine for pre-1986 Chevrolet vehicles. Chevy later renamed the Targetmaster the Goodwrench 350, which was part of General Motors' Goodwrench service/parts network. The Goodwrench program was terminated in February 2011.
Inexpensive Replacement
The Targetmaster 350 began production in 1981 in Mexico. It was a basic, no-frills engine that featured a one-piece rear main seal, which was characteristic of all pre-1986 Chevy small-block engines. The seal permitted Chevy owners to swap virtually any engine with Targetmaster without changing the flywheel or flexplate.
Specifications
The Targetmaster 350, and later the Goodwrench 350, featured the same dimensions as the original 350 with a 4-inch cylinder bore and 3.48-inch stroke. The compression ratio, however, was lower than the 1960s versions at only 8.1:1-to-1. The low compression ratio allowed the Targetmaster to run on 87-octane fuel. The lower compression ratio also sapped the 350's power with a horsepower rating of 190. Torque was 250 foot-pounds. Independent testing reported the Targetmaster was capable of up to 238 horsepower and 324 foot-pounds of torque.
Other GM Cars
Chevy's Targetmaster was not a replacement engine for other General Motors vehicles, such as Buick, Pontiac and Oldsmobile. These cars featured 350 V-8s, but were not related to the Targetmaster/Goodwrench engines.
Goodwrench
The GM Goodwrench 350 crate engine comes in several variations. The lowest priced uses the pre-1986 four-bolt casting molds with two dipstick locations; pre-1980 on the driver's side and post-1980 on the passenger's side. This engine was produced in Mexico since 1981 as the Targetmaster 350, and now the GM Goodwrench 350.
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