Cilver Beast
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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
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Charlie
Mopar by Birth. Chevy by Choice.
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Cilver Beast
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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
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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
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Thanks. Engine is still at builders. Just want to get something done on truck while I wait. Appreciate the reply
Shorty81
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I have a 496 with valve cover extensions and it just squeezes in.
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nvrenuf
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Valve cover extensions?
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The 1 inch spacers/risers.
Cilver Beast
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Thanks Shorty. Exactly what i needed to see. Your engine bay is top notch.
Kim Burke
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It'll fit
nvrenuf
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Agreed, I have the same covers with extra thick Felpro gaskets.
Cilver Beast
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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
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Yeah - unbolt it, move it towards the carb then up/off. Mine clears roller rockers and poly locks.
malibuman402
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- BB 402+.060 = 413.8CI
mine clears with stock booster
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