Cilver Beast
Junior Member
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- 17
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- 6
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- Ohio
- First Name
- Steve
- Truck Year
- 1986
- Truck Model
- C10
- Engine Size
- 489
im putting a 489 into an 86 c10. Anyone know what size booster I’ll need?
Brake booster with big block
- Thread starter Cilver Beast
- Start date
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Charlie
Mopar by Birth. Chevy by Choice.
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- Don
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- 1974
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- Cheyenne 10 LWB
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- 350/TH350/AC/4 BBL Quadrajet
Cilver Beast
Junior Member
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- 17
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- 6
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- Ohio
- First Name
- Steve
- Truck Year
- 1986
- Truck Model
- C10
- Engine Size
- 489
Thanks. The 489 has tall valve covers, I bought the truck pretty much stripped down. I’m guessing a stock booster isn’t going to fit with engine in.
nvrenuf
Full Access Member
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- Truck Year
- 1991
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- K5
- Engine Size
- 454
I've got a 91 Blazer with a 454, tall valve covers and Off Road Design poly motor mounts, no issues with the original booster.
Cilver Beast
Junior Member
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- Steve
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- 1986
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- C10
- Engine Size
- 489
Thanks. Engine is still at builders. Just want to get something done on truck while I wait. Appreciate the reply
Shorty81
Baby Boomer
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- First Name
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- Truck Year
- 86
- Truck Model
- K20
- Engine Size
- 496
I have a 496 with valve cover extensions and it just squeezes in.
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nvrenuf
Full Access Member
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- 1991
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- K5
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- 454
Valve cover extensions?
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The 1 inch spacers/risers.
Cilver Beast
Junior Member
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- 17
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- Ohio
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- Steve
- Truck Year
- 1986
- Truck Model
- C10
- Engine Size
- 489
Thanks Shorty. Exactly what i needed to see. Your engine bay is top notch.
Kim Burke
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It'll fit
nvrenuf
Full Access Member
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- 1991
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- K5
- Engine Size
- 454
Agreed, I have the same covers with extra thick Felpro gaskets.
Cilver Beast
Junior Member
- Joined
- Jan 9, 2019
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- Ohio
- First Name
- Steve
- Truck Year
- 1986
- Truck Model
- C10
- Engine Size
- 489
I appreciate the help kim and nvrenuf. Are you able to get the valve cover off on the drivers side? Reason I ask is that this will be more of a strip/strip project. High compression with a solid cam. I'll be making adjustments quite often.
nvrenuf
Full Access Member
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- 1991
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- K5
- Engine Size
- 454
Yeah - unbolt it, move it towards the carb then up/off. Mine clears roller rockers and poly locks.
malibuman402
Member
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- Aug 2, 2015
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- Location
- nc
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- Larry
- Truck Year
- 1984
- Truck Model
- C10 Silverado
- Engine Size
- BB 402+.060 = 413.8CI
mine clears with stock booster
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