[CO] 1986-90 350 Engine
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Junior Member



Joined: Apr 2021
Posts: 31
Likes: 16
From: Colorado
Car: 1989 Firebird Formula
Engine: 5.7 350 TPI
Transmission: 700R4
1986-90 350 Engine
I would like to replace the motor in my 1989 Formula 350 this year. If anyone in Colorado is sitting on a fresh-built 350 longblock I'm very interested in buying one.
My car is TPI equipped. I would like a motor I can swap my current engine's accessories directly onto (the fuel system works fine).
Ideally looking for a Goodwrench 350 crate replacement.
My car is TPI equipped. I would like a motor I can swap my current engine's accessories directly onto (the fuel system works fine).
Ideally looking for a Goodwrench 350 crate replacement.
Junior Member


Joined: Jun 2009
Posts: 49
Likes: 9
From: North Central Indiana! GO IRISH
Car: 89 PONTIAC TRANS AM
Engine: 5.0 TPI
Transmission: Stock 4SP 700R4
Axle/Gears: 4TH GEN 3:23
Re: 1986-90 350 Engine
Not sure what your budget might be? I have had great success now with 2 Blueprint crate engines. They use both seasoned and new 4-bolt 1 piece rear main roller blocks for thier builds. It sounds like you want to keep the TPI setup, so a short block would work if you want to keep your heads or long block to put your intake setup and accessories on it. They make engines in whatever power you are looking for and however built up you want it from mild to wild and from short blocks to pretty much turn key.
Junior Member
iTrader: (3)
Joined: Aug 2021
Posts: 75
Likes: 30
Car: 89 GTA
Engine: 350
Transmission: auto
Axle/Gears: 3.23 BW 9 bolt
Re: 1986-90 350 Engine
On fb market place a guy is selling freshly rebuilt 350 from a 96 truck I think, so a vortec block, for $600 in the Denver area. When I messaged him, he really didn't give me any info on it other than that his brother and himself built it and now plans have changed.
Thread Starter
Junior Member



Joined: Apr 2021
Posts: 31
Likes: 16
From: Colorado
Car: 1989 Firebird Formula
Engine: 5.7 350 TPI
Transmission: 700R4
Re: 1986-90 350 Engine
I don't use Facebook anymore, I quit that last year for good and it's been great, but sure makes finding deals harder. I was always frustrated by people listing things but not properly replying, if at all. I tried to buy a Formula hood from a guy in Denver 2 years ago, cash in hand, but he would not reply back to me more than once a week. I have been searching Craigslist for a motor but no luck so far
Thread Starter
Junior Member



Joined: Apr 2021
Posts: 31
Likes: 16
From: Colorado
Car: 1989 Firebird Formula
Engine: 5.7 350 TPI
Transmission: 700R4
Re: 1986-90 350 Engine
Not sure what your budget might be? I have had great success now with 2 Blueprint crate engines. They use both seasoned and new 4-bolt 1 piece rear main roller blocks for thier builds. It sounds like you want to keep the TPI setup, so a short block would work if you want to keep your heads or long block to put your intake setup and accessories on it. They make engines in whatever power you are looking for and however built up you want it from mild to wild and from short blocks to pretty much turn key.
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