Red - 84 K20 update

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Jake_S

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Joined
Mar 28, 2013
Posts
112
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Location
Charlotte, NC
First Name
Jacob
Truck Year
1984
Truck Model
K20
Engine Size
350/SM465/NP208
Hi everyone. It's been awhile since I posted, as I have not done much to my farm truck besides drive him on the weekends.
Background on the truck; He was a two owner truck that was used on two different farms in NE Ga with 74K originals miles, and a lot of Ga red clay in every crevice.
He has the ubiquitous 350 (quadrajet) with SM465, NP208, Front 10B and rear 14B (SF), and the engine was not opened up until I replaced the top end. I bought him about 8 years ago with mainly driving and correcting farmer repairs to the wiring.
In June I installed Summit 165cc iron heads (72cc chambers), Lunati Barebones cam, reinstalled old school perfomer intake, new cheapy "billet" distributor (with lighter springs), 1" spacer, Brawler 670 carb, and topped off with dropped base 14" filter.
The engine isn't totally happy with the low rise intake, so that will be swapped with the Performer EPS or Performer RPM (non air gap) to let the engine breathe and I want to go to a 180 thermostat (160 currently installed) as the engine temp is solid at 155, which is not good in cooler weather.
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Jake_S

Full Access Member
Joined
Mar 28, 2013
Posts
112
Reaction score
7
Location
Charlotte, NC
First Name
Jacob
Truck Year
1984
Truck Model
K20
Engine Size
350/SM465/NP208
Damn this thing is getting expensive.
 

Jake_S

Full Access Member
Joined
Mar 28, 2013
Posts
112
Reaction score
7
Location
Charlotte, NC
First Name
Jacob
Truck Year
1984
Truck Model
K20
Engine Size
350/SM465/NP208
The truck needed a new carb and intake due to wear and tear. The Brawler 670 carb has a vac leak at the secondary shaft, and the 25+ year old Performer intake has stripped carb threads. The replacement parts, Weiand 8150 intake and FST RST+ 650 carb, were delivered today, and will be installed tomorrow. I hope this is the last I need to spend on the engine for a bit.
 

Jake_S

Full Access Member
Joined
Mar 28, 2013
Posts
112
Reaction score
7
Location
Charlotte, NC
First Name
Jacob
Truck Year
1984
Truck Model
K20
Engine Size
350/SM465/NP208
Update: Weiand intake and FST carb installed. due to my ineptitude to drop a distributor in led to fighting an off idle stumble/die all of yesterday. Reset the carb (mostly) and the truck is running much better. The new intake (with a 2" 4 hole spacer) is a huge improvement over the old school performer. I need to tweak the carb more to help with low RPM/high load operation and I think the engine should be good until tune up time.
 

Jake_S

Full Access Member
Joined
Mar 28, 2013
Posts
112
Reaction score
7
Location
Charlotte, NC
First Name
Jacob
Truck Year
1984
Truck Model
K20
Engine Size
350/SM465/NP208
Pics of the new set up and spec card for the FST carb, since their site doesn't show specs.
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Installed a head unit and speakers while I was unemployed
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Jake
 

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