Home page
SPONSOR AD

Support our Vendors!  |  Advertise Here

Topic: Correct v-belt 1974 L82

in Forum: C3 Cooling and Heating Systems


Already a Member?
Login
Not yet a Member?
Register for Free!

Back to top of thread

Re: Correct v-belt 1974 L82 (6/16)
 10/21/20 10:05pm
gapl1953
Standard Member
Send Private Message

Springbrook, WI - USA

Vette(s):
1974 L82 coupe, 1990 ZR-1


Joined: 10/18/2020
Posts: 33

On certain 427's and 454's they have the same setup as mine with the belt only going from the crank to the water pump.

They use GM #3952336 belt. That belt is too small for my application.

Re: Correct v-belt 1974 L82 (7/16)
 10/21/20 10:58pm
F4GaryGold Member
Gold Member
Send Private Message

Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.


Joined: 8/26/2006
Posts: 1406

gapl1953 said:

On certain 427's and 454's they have the same setup as mine with the belt only going from the crank to the water pump.

They use GM #3952336 belt. That belt is too small for my application.



How do you install a belt on a mid 70's that only goes from the crank to the water pump?  They don't move.



______________

   

Re: Correct v-belt 1974 L82 (8/16)
 10/22/20 7:23am
Adams' AppleLifetime Member
Lifetime Member
Moderator
Send Private Message

Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


Joined: 11/8/2003
Posts: 20126

Assy manual DOES show a single belt from crank to w/p pulley. Never seen one set up like this. The only way to change it would be to remove the fan and pulley. I have to assume it was an "emergency" type deal in case the alt belt broke/failed. Ignore the smog pump in the drawing...the legend calls out "belt w/pump (exc C60 or N41).

 



______________

Joel Adams
C3VR Lifetime Member #56    

My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

Re: Correct v-belt 1974 L82 (9/16)
 10/22/20 9:31am
gapl1953
Standard Member
Send Private Message

Springbrook, WI - USA

Vette(s):
1974 L82 coupe, 1990 ZR-1


Joined: 10/18/2020
Posts: 33

Yes, that to replace the belt you need to remove the pulley, install the belt on the pulley and reinstall both to the engine together. The assembly book for 1974 shows it that way on a vin "y" (454) motor. I may be dating myself but many vehicles had a set up like this in my youth. I have tried all the regular providers and found a gap for the 1974 year belts so I went online and found a place, VBelt Supply.com. They have many different size belts listed, I ordered 6 different belts from them and I'll see if any of them will fit. Check them out their prices are not bad.

 

Thanks for the replies,

Greg






|UPDATED|10/22/2020 6:31:58 AM (AZT)|/UPDATED|
Re: Correct v-belt 1974 L82 (10/16)
 10/22/20 12:11pm
Adams' AppleLifetime Member
Lifetime Member
Moderator
Send Private Message

Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


Joined: 11/8/2003
Posts: 20126

The pic above is directly from the '74 Assembly Instruction Manual, for L48 and L82 engines. THE OE part # is 3935420, which is still available from several sources.

PARAGON CORVETTE shows it for $28.  Quanta Products has correct part #, dated belt for $26, if you are going for Judging points.



______________

Joel Adams
C3VR Lifetime Member #56    

My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

Re: Correct v-belt 1974 L82 (11/16)
 10/22/20 12:33pm
gapl1953
Standard Member
Send Private Message

Springbrook, WI - USA

Vette(s):
1974 L82 coupe, 1990 ZR-1


Joined: 10/18/2020
Posts: 33

Adams' Apple said:

The pic above is directly from the '74 Assembly Instruction Manual, for L48 and L82 engines. THE OE part # is 3935420, which is still available from several sources.

PARAGON CORVETTE shows it for $28.  Quanta Products has correct part #, dated belt for $26, if you are going for Judging points.

For whatever reason, I didn't  see that page. I'll blame it on senility.

It looks like the right size.


Thank's,

Greg



|UPDATED|10/22/2020 9:33:45 AM (AZT)|/UPDATED|
Re: Correct v-belt 1974 L82 (12/16)
 10/22/20 12:35pm
Adams' AppleLifetime Member
Lifetime Member
Moderator
Send Private Message

Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


Joined: 11/8/2003
Posts: 20126

gapl1953 said:

For whatever reason, I didn't  see that page. I'll blame it on senility.

 LOL!! I hear ya! lol




______________

Joel Adams
C3VR Lifetime Member #56    

My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

Re: Correct v-belt 1974 L82 (13/16)
 10/22/20 1:02pm
manchestersharkLifetime Member
Lifetime Member
Send Private Message

Equinunk, PA - USA

Vette(s):
1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.


Joined: 10/31/2007
Posts: 2382

So....Now for my question. Were L-82s Big Blocks or just small blocks? It was my understanding that Big Blocks had a different identifier. 



______________


Click on image for full view

Re: Correct v-belt 1974 L82 (14/16)
 10/22/20 7:31pm
Adams' AppleLifetime Member
Lifetime Member
Moderator
Send Private Message

Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


Joined: 11/8/2003
Posts: 20126

The L82 took the place of the LT1 as the "high performance" small block starting in '73. It is a small block 350.



______________

Joel Adams
C3VR Lifetime Member #56    

My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

Re: Correct v-belt 1974 L82 (15/16)
 10/22/20 9:36pm
manchestersharkLifetime Member
Lifetime Member
Send Private Message

Equinunk, PA - USA

Vette(s):
1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.


Joined: 10/31/2007
Posts: 2382

That was my understanding. So....What am I missing with the 427 and 454 in the equation? Did the BBC, and SBC have the same set up? Why is this so new to many of us.



______________


Click on image for full view

Re: Correct v-belt 1974 L82 (16/16)
 10/22/20 9:40pm
Adams' AppleLifetime Member
Lifetime Member
Moderator
Send Private Message

Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


Joined: 11/8/2003
Posts: 20126

manchestershark said:

. So....What am I missing with the 427 and 454 in the equation? Did the BBC, and SBC have the same set up?

Not really sure what it is you're asking, Mark. If you're asking about belt set-ups, then no, the small block have different belt/accessory setups from big blocks. Even small blocks have different set-ups depending on equipment/options.




______________

Joel Adams
C3VR Lifetime Member #56    

My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

Our Sponsors help support C3VR