My block casting #'s
Thread Starter
Burning Brakes
Joined: Jul 2008
Posts: 1,004
Likes: 27
From: South Louisiana offshore, Gulf of Mexico
My block casting #'s
Trying to identify my GM Goodwrench 350ci.
Have looked on chevyhardcore.com, my #'s dont match anything first gen.
Need flywheel, 168 tooth, 14-1/8 dia w/ 2.5xx" crank boss
TIA, Bill
Le Mans Master
Joined: Sep 2003
Posts: 8,812
Likes: 2,029
From: eastern NC
Bill, it looks like your engine is a replacement engine made in Mexico. I believe they were called 'Target' or 'Targetmaster' engines and a lot of vendors sold them in the past as a 'new' engine (which they technically were) and frequently sold for less than a good rebuild so they were used widely.
Here you go... https://www.jalopyjournal.com/forum/...ngines.638731/
Good luck... GUSTO
Here you go... https://www.jalopyjournal.com/forum/...ngines.638731/
Good luck... GUSTO
Race Director
Joined: Oct 2000
Posts: 12,640
Likes: 3,103
From: Shamong, NJ
You have a 90's or 2000's GM "Goodwrench 350" crate motor.
The Goodwrench 350 and the Targetmaster Gusto mentioned were the same basic engine. The Targetmaster came out around 79 or 80, and maybe 10 years later was renamed the Goodwrench 350. Both engines were over the counter 350 engines that were initially intended as a reasonably price replacement 350 truck engine, but became a popular replacement engine for any car needing a fresh small block Chevy engine.
These engines were more or less a late 70's L-48 350, and came complete less intake, carb, water pump, starter, flywheel, balancer & distributor. They were made in Mexico using new 4 block main blocks, claimed compression was 8.5:1 (real was thought to be closer to 8.1:1), hydraulic cam, 1.94" intake & 1.50" exhaust valves. Horse power was rated at 195, but with a cam change, headers, a performance intake and a Holley carb, 330-350 was possible. When the Targetmaster came out it had a list price of around $1100-$1200, but often sold for as little as $900, and even 10 or so years ago when they were discontinued they could still be had new for about $1500.
The Goodwrench 350 and the Targetmaster Gusto mentioned were the same basic engine. The Targetmaster came out around 79 or 80, and maybe 10 years later was renamed the Goodwrench 350. Both engines were over the counter 350 engines that were initially intended as a reasonably price replacement 350 truck engine, but became a popular replacement engine for any car needing a fresh small block Chevy engine.
These engines were more or less a late 70's L-48 350, and came complete less intake, carb, water pump, starter, flywheel, balancer & distributor. They were made in Mexico using new 4 block main blocks, claimed compression was 8.5:1 (real was thought to be closer to 8.1:1), hydraulic cam, 1.94" intake & 1.50" exhaust valves. Horse power was rated at 195, but with a cam change, headers, a performance intake and a Holley carb, 330-350 was possible. When the Targetmaster came out it had a list price of around $1100-$1200, but often sold for as little as $900, and even 10 or so years ago when they were discontinued they could still be had new for about $1500.
Race Director
Joined: Oct 2000
Posts: 12,640
Likes: 3,103
From: Shamong, NJ
Around 78 I picked up a 74 1/2 ton, standard cab, 8 foot box, that was surprisingly solid because it had always been garaged. It was a 6 cylinder, 3 speed column shift with power steering an AM radio and no other options. When I look at the Denali I'm driving now, I don't know what's harder to believe, that they once built trucks like that or that we drove them never imagining they'd eventually become more luxurious then a Cadillac.
