How big a cowl hood needed?
How big a cowl hood needed?
For those that have completed the swap. I have a Victor jr. and a 1" nitrous plate, was wondering how tall the cowl would need to be to clear the carb? I had a 6" cowl last time and didn't want to try to drive it on the street.
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: How big a cowl hood needed?
i'd imagine 2" with the proper drop base air cleaner would fit. I have a 4" and fit a 6" tall air cleaner with a drop base. So take that for what it's worth. personally I'd measure your setup and decide for yourself.
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From: p'cola FL
Car: 88 iroc-z/28
Engine: 408 lsx
Transmission: 5800 stall
Axle/Gears: 4.71
Re: How big a cowl hood needed?
i have an ss hood and i cant run an air cleaner with a victor jr and a nitrous plate.
i now have a super victor and cant even run my plate.
ss hood isnt quite 2", but beware. dont know if 2 would get it done.
very close. tough call.
i now have a super victor and cant even run my plate.
ss hood isnt quite 2", but beware. dont know if 2 would get it done.
very close. tough call.
Re: How big a cowl hood needed?
Thanks for the replies. Just trying to get an idea from those who already have theirs together. I would like to use the shortest hood possible. I like the looks of the big cowls but the function leaves alot to be desired.
Joined: Sep 2003
Posts: 25,895
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From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: How big a cowl hood needed?
how tall is the average carb and air filter? I have the efi victor manifold with a intake elbow thats 6.5-7 inches taller and I needed a 4" to clear. Leaves about an inch of clearance underneath it so possible a 3" cowl would have cleared.
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iTrader: (3)
Joined: Jan 2004
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From: p'cola FL
Car: 88 iroc-z/28
Engine: 408 lsx
Transmission: 5800 stall
Axle/Gears: 4.71
Re: How big a cowl hood needed?
with the ls1 and a victor jr, i had to run a 3" filter. with a nitrous plate and a hvh spacer, air cleaner wouldnt even think about fitting.
ls motor is a lil taller.
Supreme Member
iTrader: (5)
Joined: Jan 2002
Posts: 13,622
Likes: 5
From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: How big a cowl hood needed?
that's weird, my motor must be lower in the chassis because i have a 6" drop base air cleaner, vic jr, performer rpm nitrous plate and a 950 carb under my hood with about 1/4" gap under my glasstek 4" cowl
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Re: How big a cowl hood needed?
xpndbl3, do you have any pics of you carb setup? Just curious what a 6" drop air cleaner looks like. Do you have any interferance issues with the linkage or solenoids?
Supreme Member
iTrader: (5)
Joined: Jan 2002
Posts: 13,622
Likes: 5
From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: How big a cowl hood needed?
the drop base is the same from a 3" drop base to the 6" drop base, it's just the filter that changes height the base is the same part.

crappy cell phone pic but it should show you what it looks like.

crappy cell phone pic but it should show you what it looks like.
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