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 08-13-2014, 04:12 AM
  #1  
mrscott25
Melting Slicks
Thread Starter
 
mrscott25's Avatar
 
Member Since: Jul 2013
Posts: 3,237
Likes: 0
Received 31 Likes on 14 Posts
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; 08-13-2014 at 04:18 AM.
The following users liked this post:
Jim Bondy Sr. (07-10-2020)
Old 08-13-2014, 04:17 AM
  #2  
mrscott25
Melting Slicks
Thread Starter
 
mrscott25's Avatar
 
Member Since: Jul 2013
Posts: 3,237
Likes: 0
Received 31 Likes on 14 Posts
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.
Old 08-13-2014, 05:57 AM
  #3  
dembo
Burning Brakes
 
dembo's Avatar
 
Member Since: May 2007
Location: Lokeren, Belgium
Posts: 1,022
Received 33 Likes on 29 Posts

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
Old 08-13-2014, 06:44 AM
  #4  
resdoggie
Had a 1976 L-82, 4-sp

Support Corvetteforum!
 
resdoggie's Avatar
 
Member Since: Mar 2011
Location: Some days your the dog and some days your the hydrant.
Posts: 5,338
Received 1,199 Likes on 925 Posts
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; 08-13-2014 at 07:19 PM.
Old 08-13-2014, 08:41 AM
  #5  
spikebot 81
Racer
 
spikebot 81's Avatar
 
Member Since: Dec 2007
Location: vancouver washington
Posts: 334
Received 19 Likes on 17 Posts

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"
Old 08-13-2014, 09:03 AM
  #6  
CaseyJones
Melting Slicks
 
CaseyJones's Avatar
 
Member Since: Jul 2010
Location: McGrady NC
Posts: 2,503
Received 33 Likes on 32 Posts
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)
Old 08-13-2014, 09:26 AM
  #7  
bruiser
Melting Slicks
 
bruiser's Avatar
 
Member Since: Feb 2007
Location: S.E. MI
Posts: 2,322
Received 204 Likes on 153 Posts
St. Jude Donor '15

Default

1977
L31 Vortec 350
stock hood
quadrajet
Professional Products Cyclone vortec intake
stock dual snorkel air cleaner
fits good
Old 08-13-2014, 11:09 AM
  #8  
pauldana
Race Director
Support Corvetteforum!
 
pauldana's Avatar
 
Member Since: May 2003
Location: California
Posts: 10,679
Received 396 Likes on 306 Posts

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; 08-13-2014 at 12:49 PM.
Old 08-13-2014, 12:10 PM
  #9  
BlackC3vette
Burning Brakes
 
BlackC3vette's Avatar
 
Member Since: Jan 2012
Posts: 943
Received 73 Likes on 69 Posts

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.
Old 08-13-2014, 12:21 PM
  #10  
ykf7b0
Racer
 
ykf7b0's Avatar
 
Member Since: Aug 2014
Location: Tennessee
Posts: 479
Received 91 Likes on 44 Posts
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!
Old 08-13-2014, 12:28 PM
  #11  
Jbster
Le Mans Master
 
Jbster's Avatar
 
Member Since: Feb 2014
Location: hot 'lanta suburbs Georgia
Posts: 6,420
Received 14 Likes on 10 Posts
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.
Old 08-13-2014, 12:54 PM
  #12  
Flyinace3
Racer
 
Flyinace3's Avatar
 
Member Since: Feb 2012
Location: Clawson Michigan
Posts: 261
Likes: 0
Received 3 Likes on 3 Posts
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
The following users liked this post:
Jim Bondy Sr. (07-10-2020)
Old 08-13-2014, 12:54 PM
  #13  
John 65
Le Mans Master
 
John 65's Avatar
 
Member Since: Dec 2003
Location: N J
Posts: 5,347
Received 403 Likes on 326 Posts

Default

1977
454 BB
Stock
750 Holley
RPM Performer
Stock drop base with a flat lid
No problems at all.
The following users liked this post:
vettegozzzz (12-10-2017)
Old 08-13-2014, 03:13 PM
  #14  
ignatz
Safety Car
Support Corvetteforum!
 
ignatz's Avatar
 
Member Since: May 2004
Location: los altos hills california
Posts: 3,607
Received 1,126 Likes on 730 Posts

Default

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


Last edited by ignatz; 08-13-2014 at 03:15 PM.
Old 08-13-2014, 03:59 PM
  #15  
BKbroiler
Le Mans Master
 
BKbroiler's Avatar
 
Member Since: May 2002
Location: Lebanon Township New Jersey
Posts: 5,005
Received 706 Likes on 401 Posts

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


Old 08-13-2014, 04:46 PM
  #16  
Kevin BC
Instructor
Support Corvetteforum!
 
Kevin BC's Avatar
 
Member Since: May 2013
Location: Lower Mainland British Columbia
Posts: 186
Received 15 Likes on 10 Posts

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.
Old 08-13-2014, 05:47 PM
  #17  
mvette76
Racer
 
mvette76's Avatar
 
Member Since: Nov 2007
Location: coon rapids mn
Posts: 350
Received 0 Likes on 0 Posts

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!

Get notified of new replies

To Hood Clearance List

Old 08-13-2014, 06:00 PM
  #18  
70LQ4
Instructor
 
70LQ4's Avatar
 
Member Since: Nov 2011
Location: Warsaw Ohio
Posts: 234
Received 24 Likes on 8 Posts

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; 12-28-2018 at 05:24 PM.
Old 08-13-2014, 06:01 PM
  #19  
rosros
Racer
 
rosros's Avatar
 
Member Since: Jul 2011
Location: chicagoland il
Posts: 261
Received 74 Likes on 29 Posts

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.
Old 08-13-2014, 06:24 PM
  #20  
John 65
Le Mans Master
 
John 65's Avatar
 
Member Since: Dec 2003
Location: N J
Posts: 5,347
Received 403 Likes on 326 Posts

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; 08-13-2014 at 06:36 PM.


Quick Reply: Hood Clearance List



All times are GMT -4. The time now is 03:03 AM.