Tilden Motorsports LS used engines

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77 K20

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Joined
Nov 9, 2012
Posts
3,076
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3,049
Location
Montana
First Name
Mike
Truck Year
1977
Truck Model
K20 5" lift
Engine Size
HT383 fuel injected
So my father in law offered me his old GMC K15.(1984?) It has been sitting in a field since probably 2003? If I remember right it has the 305, and he said it ran horrible when parked.

I'm sure it hasn't gotten any better.

I started thinking about just putting a "generic" GM crate engine into it. a 265hp 350 (P/N19420194) is $2,880.

Then I was re-watching old episodes of Dirt Everyday on the Motortrend channel. Several times they have used Tilden Motorsports for an LS swap. But they also sell used engines...

http://tildenmotorsports.com/products/take-out-engines.html

You can get a 5.3 with a pre-flashed ECU, custom wiring harness, fuse block, and a 1 year warranty. For $3,000. They even have the 4.8L for $2,200, 6.0L for $4,000 or the 8.1L for $4,000...

Sounds pretty easy to me for something that would start quickly even in cold weather. Although it has the manual trans. I think I've read the LS exhaust hits the clutch linkage or something.

Anyone use them before?
 

custodian

Full Access Member
Joined
Apr 15, 2016
Posts
959
Reaction score
554
Location
Catawba
First Name
William
Truck Year
1973, 1985
Truck Model
C10
Engine Size
5.3 LS, 350
So my father in law offered me his old GMC K15.(1984?) It has been sitting in a field since probably 2003? If I remember right it has the 305, and he said it ran horrible when parked.

I'm sure it hasn't gotten any better.

I started thinking about just putting a "generic" GM crate engine into it. a 265hp 350 (P/N19420194) is $2,880.

Then I was re-watching old episodes of Dirt Everyday on the Motortrend channel. Several times they have used Tilden Motorsports for an LS swap. But they also sell used engines...

http://tildenmotorsports.com/products/take-out-engines.html

You can get a 5.3 with a pre-flashed ECU, custom wiring harness, fuse block, and a 1 year warranty. For $3,000. They even have the 4.8L for $2,200, 6.0L for $4,000 or the 8.1L for $4,000...

Sounds pretty easy to me for something that would start quickly even in cold weather. Although it has the manual trans. I think I've read the LS exhaust hits the clutch linkage or something.

Anyone use them before?

I'm using the 10-15 Camaro 6.2 SS exhaust manifolds on my build, they tuck in a bit closer to the motor, but I'm using the 4l60e. Not sure if it would be better or the same as the stock 5.3 truck exhaust manifolds.
 

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