C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Hood Clearance List

Thread Tools
 
Search this Thread
 
Old Aug 13, 2014 | 04:12 AM
  #1  
mrscott25's Avatar
mrscott25
Thread Starter
Melting Slicks
 
Joined: Jul 2013
Posts: 3,237
Likes: 31
Default Hood Clearance List - Please add your results

Tons of questions on here about what works and what does not with regard to hood clearance. For those who have made changes, lets see if we can get a list started for reference to help get some good data. Try and keep this format...

1 Year
2 Motor (SB or BB)
3 Hood (L-48 or L-82)
4 Carb
5 Intake
6 Air Cleaner
7 How does it fit? Works or I tried it and it Does not work

Last edited by mrscott25; Aug 13, 2014 at 04:18 AM.
Reply
Old Aug 13, 2014 | 04:17 AM
  #2  
mrscott25's Avatar
mrscott25
Thread Starter
Melting Slicks
 
Joined: Jul 2013
Posts: 3,237
Likes: 31
Default

1981
SB 350
L-48/L-81 (stock low rise hood)
Edelbrock 2101 Performer Intake
Edelbrock 1406 Carb
Stock Air Cleaner with Stock Cold Air Intake

It fits but has only 1/4 inch of clearance verified with the playdough method. Had to install a 1/2 inch aluminum spacer/adapter to make stock air cleaner fit the new carb. Also had to move one metal tube on bottom of air cleaner to allow the fuel pump to open fully.
Reply
Old Aug 13, 2014 | 05:57 AM
  #3  
dembo's Avatar
dembo
Burning Brakes
10 Year Member
 
Joined: May 2007
Posts: 1,022
Likes: 33
From: Lokeren, Belgium
Default

1974
350HO Vortec crate engine
Stock 74 hood (same for L48/L82)
Quadrajet
Edelbrock performer 2116
Proform 14x3" 1.5 drop base 141-690
1/4"-1/2" filter to hood clearance
Reply
Old Aug 13, 2014 | 06:44 AM
  #4  
resdoggie's Avatar
resdoggie
Had a 1976 L-82, 4-sp
Supporting Lifetime
10 Year Member
Veteran: Navy
 
Joined: Mar 2011
Posts: 5,338
Likes: 1,213
From: Some days your the dog and some days your the hydrant.
Royal Canadian Navy
Default

1976
355
stock hood
Holley 4150 Street HP
Weiand Team G
14" x 4" open element 1 3/4" drop made by Allstar.
1/10" clearance or less
Attached Images   

Last edited by resdoggie; Aug 13, 2014 at 07:19 PM.
Reply
Old Aug 13, 2014 | 08:41 AM
  #5  
spikebot 81's Avatar
spikebot 81
Racer
15 Year Member
All Eyes On Me
Liked
 
Joined: Dec 2007
Posts: 341
Likes: 29
From: vancouver washington
Default

1981
355 sbc
stock hood
750cfm edle
7101 rpm edle
14x3 edle open element
modified the air filter base to lower 1/2 inch. Hood clearance aprox 1/4"
Reply
Old Aug 13, 2014 | 09:03 AM
  #6  
CaseyJones's Avatar
CaseyJones
Melting Slicks
 
Joined: Jul 2010
Posts: 2,503
Likes: 33
From: McGrady NC
St. Jude Donor '15-'16
Default

1980
355
stock hood
factory QJ
2101 Edelbrock Performer
factory dual snorkel air cleaner setup (vent tube requires extending)
Reply
Old Aug 13, 2014 | 09:26 AM
  #7  
bruiser's Avatar
bruiser
Melting Slicks
15 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Active Streak: 120 Days
 
Joined: Feb 2007
Posts: 2,709
Likes: 269
From: S.E. MI
St. Jude Donor '15
Default

1977
L31 Vortec 350
stock hood
quadrajet
Professional Products Cyclone vortec intake
stock dual snorkel air cleaner
fits good
Reply
Old Aug 13, 2014 | 11:09 AM
  #8  
pauldana's Avatar
pauldana
Race Director
Supporting Member
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2003
Posts: 10,956
Likes: 409
From: California
Default

1979
427 dart SHP
Titan single plain plastic AFR intake
Custom ram air/Cold air intake with 14" X 3" filter
Stock hood and L88 hood both
EZ EFI 2.0 fuel injection.

Everything fits great:-)

this is with my old 383

Last edited by pauldana; Aug 13, 2014 at 12:49 PM.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old Aug 13, 2014 | 12:10 PM
  #9  
BlackC3vette's Avatar
BlackC3vette
Burning Brakes
10 Year Member
 
Joined: Jan 2012
Posts: 943
Likes: 73
Default

1980
383 SB
Stock hood - L48 (for now)
Q-Jet
Performer RPM
Proform - 1 1/2" drop
About 3/8" of clearance. When I put a different hood on it, I hope to put the stock air cleaner back on.
Reply
Old Aug 13, 2014 | 12:21 PM
  #10  
ykf7b0's Avatar
ykf7b0
Racer
 
Joined: Aug 2014
Posts: 479
Likes: 93
From: Tennessee
Default

1976
350
L-48 hood
Quadrajet
Edelbrock Performer
Factory Cold Air Duct with Factory Air Cleaner
It fits like it did when it left the factory!
Reply
Old Aug 13, 2014 | 12:28 PM
  #11  
Jbster's Avatar
Jbster
Le Mans Master
 
Joined: Feb 2014
Posts: 6,420
Likes: 15
From: hot 'lanta suburbs Georgia
Default

1977
454
Stock hood
Edelbrock carb
Performer RPM Air Gap
Edelbrock 1" drop base w/ 3" air filter
Doesn't fit (I knew it wouldn't) Going to be adding hood scoop; probably stinger style. Need about 2 to 3 more inches of clearance.
Reply
Old Aug 13, 2014 | 12:54 PM
  #12  
Flyinace3's Avatar
Flyinace3
Racer
 
Joined: Feb 2012
Posts: 261
Likes: 3
From: Clawson Michigan
Default

1980
350
Stock hood
Holley 650DP
Edelbrock 2101 w 1" spacer
Spectre 14" dia. dual snorkel air box plumbed to factory cold air location
5/8" clearance at from edge of air box
Reply
Old Aug 13, 2014 | 12:54 PM
  #13  
John 65's Avatar
John 65
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2003
Posts: 5,381
Likes: 415
From: N J
Default

1977
454 BB
Stock
750 Holley
RPM Performer
Stock drop base with a flat lid
No problems at all.
Reply
Old Aug 13, 2014 | 03:13 PM
  #14  
ignatz's Avatar
ignatz
Safety Car
Supporting Member
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2004
Posts: 4,351
Likes: 1,579
From: los altos hills california
Default

1 1969
2 LS3
3 unknown
4 Ultra
5 Single Plane
6 stock drop base


Last edited by ignatz; Aug 13, 2014 at 03:15 PM.
Reply
Old Aug 13, 2014 | 03:59 PM
  #15  
BKbroiler's Avatar
BKbroiler
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2002
Posts: 5,086
Likes: 786
From: Lebanon Township New Jersey
Default

77
383 sbc
stock hood
Quadrajet
Edelbrock air gap RPM + 3/4 thick adapter (spreadbore to square)
14x3 open element air cleaner with 2 inch drop base
very tight fit, but it fits


Reply
Old Aug 13, 2014 | 04:46 PM
  #16  
Kevin BC's Avatar
Kevin BC
Instructor
Supporting Member
10 Year Member
 
Joined: May 2013
Posts: 186
Likes: 18
From: Lower Mainland British Columbia
Default

That is a great looking intake/filter set up. Have you provided any build info in a previous thread, or can you elaborate on how you made it up. Looks like various available parts combined with your customization to put it all together for a great result.
Reply
Old Aug 13, 2014 | 05:47 PM
  #17  
mvette76's Avatar
mvette76
Racer
15 Year Member
 
Joined: Nov 2007
Posts: 350
Likes: 0
From: coon rapids mn
Default

Originally Posted by John 65
1977
454 BB
Stock
750 Holley
RPM Performer
Stock drop base with a flat lid
No problems at all.
do you have pics of your set up? I just put a 454 in my 75 and the choke horn on the holley hit the hood with no air cleaner!
Reply

Get notified of new replies

To Hood Clearance List

Old Aug 13, 2014 | 06:00 PM
  #18  
70LQ4's Avatar
70LQ4
Instructor
10 Year Member
 
Joined: Nov 2011
Posts: 234
Likes: 24
From: Warsaw Ohio
Default


1970

LQ4 6 Liter

77 stock Hood

850 Holley

Holley Dual plane

Factory drop base

Fits good made My own solid Motor Mounts that lowered Engine by about 3/4 inch to fit the Truck fuel injection manifold, but eventually went to Carb instead.

Last edited by 70LQ4; Dec 28, 2018 at 05:24 PM.
Reply
Old Aug 13, 2014 | 06:01 PM
  #19  
rosros's Avatar
rosros
Racer
10 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jul 2011
Posts: 265
Likes: 77
From: chicagoland il
Default

Originally Posted by mrscott25
Tons of questions on here about what works and what does not with regard to hood clearance. For those who have made changes, lets see if we can get a list started for reference to help get some good data. Try and keep this format...

1 Year
2 Motor (SB or BB)
3 Hood (L-48 or L-82)
4 Carb
5 Intake
6 Air Cleaner
7 How does it fit? Works or I tried it and it Does not work
1. 1976
2. SBC 434
3. L-48
4. Quick Fuel SS VS 780
5. Edlebrock Performer RPM Air Gap
6. Chevrolet Performance drop base
7. 2.5" K&N but 3" works. With the 3", the lid will rub on the hood insulation, which is fine, but my air cleaner lid has custom graphics so I use the 2.5".

Also have a poly motor mounts...do not know if that changes the engine height or not.
Reply
Old Aug 13, 2014 | 06:24 PM
  #20  
John 65's Avatar
John 65
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2003
Posts: 5,381
Likes: 415
From: N J
Default

Originally Posted by mvette76
do you have pics of your set up? I just put a 454 in my 75 and the choke horn on the holley hit the hood with no air cleaner!
No way I wanted to change the stock look of my car with the 454 in it, so the secret is a new choke-less 750 Holley, it allows for the flat cap and bolt to clear the hood by about an inch with the ole tin foil test. Car starts just fine without a choke all year long, feather the pedal for a few seconds and its good to go.


To purchase another hood, and do more paint and body work, this was the best move for me, plus it looks stock.




Last edited by John 65; Aug 13, 2014 at 06:36 PM.
Reply



All times are GMT -4. The time now is 07:43 AM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE