Corvette

air conditioning    
brakes
camshafts
carb
coolant temp sensor
convertible top
crankshafts
door and windows
engine block
forums
fuel 
gas gauge
headlights 
heads  
intake manifold
literature & manuals
misc
oil pressure
parts
repair videos and articles
roller rockers
stereo
suspension
tachometer
transmission
vaccum lines
windage trays 
winterizing
wiring

jacking locations

side view mirror repair

****** corvettemagazine.com C3 repair technical articles - step by step with pics  basically everything I need to fix with our vette is detailed here  *****

wiper motor replacement on corvette magazine

door hinge repair on corvette magazine

window regulator roller rebuild on corvette magazine - not sure if this is for manual or electric

door handle and lock rod installation on corvette magazine

door outer window seals replacement on corvette magazine

wiring      parasitic draw test video

see through C3s
Corvette Horsepower Rating Timeline By Year


Installing carpet   HEI ignition installation  Weatherstripping   

1975 production stats
Small Block Chevy casting numbers
L48 vs L82

corvette triva

roller rocker comparison by hotrod magazine - summary  1.5:1 stamped rockers to 1.5:1 roller gained 11.2hp / 5.9ft.-lb; from there to 1.6:1 another 12.5hp & 9.9 ft lb.; gains only seen if enough flow through heads

forums:
Corvetteforum.com C3 forum apx 3.6m posts
DigitalCorvettes C3 forum  apx 200k posts
CorvetteActionCenter   apx 185k posts in general, technical & performance, for sale & wanted, parts for sale & wanted
C3CorvetteForum    apx 90k posts in >12 areas
C3VetteRegistry   maybe 75k posts
theVetteBarn     probably just a couple thousand posts total
National Corvette Restorer's Society - 770,000 posts - 31 days free started 2017-07-28

Visual History of Corvette Logos  Part 2

Online magazines:
Corvette Online

setting timing on monte carlo ss, vette is similar

Small-Block Chevy V-8 through the Years - Motor Trend
Horsepower/Torque Curve 1975 Chevrolet Corvette Stingray Convertible 350 V-8
Jeff Smith, Author at Hot Rod Network
It's Free: Tremec's Digital Driveline angle App for Smartphones - Hot Rod Network
Jeff Smith, Author at Hot Rod Network - Page 13 of 46
norwegian guy's 1975
1975 Corvette Spec Sheet

autoevolution: How To Start a Budget C3 Corvette Build: Body Basics

different generations from here

Why there was no 1983 model


Air Conditioning

1977-1982 Corvette Air Condition Blower Motor Replacement   so maybe a little different for a '75


Brakes

corvette magazine article on bleeding C3 brakes   


camshafts

Secrets Of Camshaft Power

Determining Camshaft Specs (in motor, no removal): Degree Wheel Kit Recommendations - Hot Rod Forum : Hotrodders Bulletin Board
cam upgrade | Grumpys Performance Garage
70hp 5.3L LS Isky Cam Swap - Hot Rod Network
Secrets Of Camshaft Power
Camshaft lobe separation angle – Moore Good Ink
Secrets Of Camshaft Power
How To Determine Cam Specifications of an Unknown Cam - LS1TECH - Camaro and Firebird Forum Discussion
Camshaft Duration


carb

2016-07-16 carb Edelbrock Thunder AVS 1806     [before ordering anything make sure it isn't 1805]


[2024-06-17 I have the 1806 with electric choke  ]

this is the 1805 manual choke that I don't have

have all info downloaded already - 1805 might be same model with different electric choke option?
650 CFM, MANUAL OR ELECTRIC CHOKE CARBURETORS
Designed and calibrated for optimum street performance in small-block and some big-block engines. Match with a variety of manifolds that include Edelbrock Performer, Performer EPS, Performer RPM, RPM Air-Gap, Torker II or other brands of similar design. Includes: Metering Jets - Primary .095, Secondary .098; Metering Rods - .068 x .047; Step-Up Spring - Orange (5" Hg).

Edelbrock has 3 carb series
AVS2 highest performance
Thunder AVS medium performance - this is the one I have
Performer - lowest performance

Edelbrock carbs page

hotrod.com article testing 7 budget carbs that includes quadrajet on the Monte and Edelbrock Perfomer (the series one under mine)

Holley elec choke adjustment
Adjusting Automatic Chokes
Troubleshooting Carbs - THECARBURETORSHOP.com
Choke Adjustment | Hemmings Motor News
Testing carb secondaries
edelbrock performer secondaries - Corvette Forum
grease or paperclip to test secondaries
404 Carb Class - Quick Fuel Technology
holley carbs and metering blocks
The Great $299 Carburetor Shootout - Hot Rod Network
double pumper needed for mech secondaries
Vacuum or Mechanical-Secondary Carburetor? - Hot Rod Network
How to Pick the Best Carburetor for a Street/Strip Car - Hot Rod Network
Installation & Tech Videos - Edelbrock, LLC.

Holley elec choke adjustment
Adjusting Automatic Chokes
Troubleshooting Carbs - THECARBURETORSHOP.com
Choke Adjustment | Hemmings Motor News
Testing carb secondaries
edelbrock performer secondaries - Corvette Forum
grease or paperclip to test secondaries
404 Carb Class - Quick Fuel Technology
holley carbs and metering blocks
The Great $299 Carburetor Shootout - Hot Rod Network
double pumper needed for mech secondaries
Vacuum or Mechanical-Secondary Carburetor? - Hot Rod Network
How to Pick the Best Carburetor for a Street/Strip Car - Hot Rod Network
Installation & Tech Videos - Edelbrock, LLC.

flooded & choke

In a carbureted engine equipped with an accelerator pump (which advances fuel flow to match air ingestion under rapid throttle acceleration), 'pumping' the throttle will force excess fuel into the engine, further flooding it.

this hotrodders thread is discussing manual choke (that I think the Monte has but the Vette has electric choke i think)
"A electric , turn keyon. Pump pedal to set choke idle cam. A second wot pump will release the hhigh idle cam."
maybe this is my interpretation "[w elec choke] just turn the key and drive away. Maybe need to step on the gas to set the fast idle if its really cold"

Hemming's article The Lost Art of Choke Adjustment   

2016-08-17 yahoo.com now 404 link a carburetor with an automatic choke needs that first pedal press for cold starts

summit racing holley carbs choke video


coolant temp sensor

Temp Gauge diagnosis
coolant temp sensor in 82


Convertible top

$305 directly from Al Knoch

one person in this post may be willing to share the Al Knoch video (which isn't available on corvettecentral until ~2023-02-28); one person hates his tops and like Robbins Auto tops, but they don't seem to make one for the C3 generation anymore.

this post references a conversion from coupe to convertible in a google photos album. The link to the Al Knoch video is about half way done on the left column, look for the company logo.
at least one reply in the post says the Rowley's page uses contact cement and that isn't a good idea

another post with a member who may lend it

detailed info on archive.org from Rowley's Corvette on replacing the top    page 1    page 2
don't use contact cement

2016-12-28 email to myself "2016-04-26 vette parts":
not sure which i need [and these ecklerscorvette.com parts numbers]
25-118438-1
25-118437-1
25-118439-1
also noted i should get installation video as well as 25-161509-1 deck lid lock striker
no idea by what this portion means
rik's
CVT201or similar, heavier vinyl and cheaper, but need additional kit


crank

Crank-scrapers.com Product 1
Flat Plane Crank vs cross plane and v8 firing order
Flat-Plane vs Cross-Plane Crank
10/10 crank - Corvette Forum
What is a crank scraper
Bundle Of Snakes Exhaust for flat plane cranks
Bundle of Snakes = 180 Degree Headers


door

detailed thread with nice pics on converting to power windows

see "1975 CORVETTE ASSEMBLY MANUAL.pdf" pdfp 197 for ouside door handle and lock; next several pages are inside mechanism

door panel installation from Corvette Central Tech Blog (local pdf)

how to open C3 Corvette door - Google Search    
C3 Corvette door won't unlock - Google Search

latch and handles

"Locked out!" C3 Door Lock Fix

C3 Corvette door assembly- step by step video    "outdide handle 4:44 on roomy side"

new latch
https://www.corvettecentral.com/c3-68-82/doors/handles-latches/69-77-door-lock-latch-mechanism-assembly-left-283154l

best door vids showing clip

bottom of linkage clip
https://youtu.be/4_rrXEgirFc?t=411
https://youtu.be/4_rrXEgirFc?t=476
https://youtu.be/PogRIvmJjdM?t=785

top of linkage
https://youtu.be/PogRIvmJjdM?t=737

roomy side bottom connected
https://youtu.be/PogRIvmJjdM?t=871

door lock positions & lock replacement
https://youtu.be/L4eVT889xck?t=246
up is locked
down is unlocked

lock clip https://youtu.be/L4eVT889xck?t=284

Adjusting The Door Latch On A C3 Vette.
https://www.youtube.com/watch?v=l60zV7ah8BY

door alignment

1970-1975 Corvette Convertible Door Alignment Fix | Corvette Magazine


Engine Block

note from 2016-07-16 indicates my block casting number is 397 0010
this hotrodders.com post indicates
while you can always do better if you spend the money the 010's have always been considered to be agood block to use.your block was used probably about as much as any chevy block ever was used from april or may 69' through 75'.it came in 2&4 bolt mains and was used extensively in trucks.also corvette,camaro,chevelle,nova,montecarlo's and pass.look at your oil filter housing and see if there is an 010 020 this will tell you that the block was made with an extra i percent tin and two percent nickle content and that means its very desirable for a perf. block.if not don't worry about it unless you're looking for more than five hundred horse.these numbers will be behind your timing cain cover also.but you can look at the oil filter housing with out disasembling anything. the mexican crate motors were made extra h.d.how are they not good?the mexican motor is 10066036.


forums

corvetteforum.com c3 forums

C3VR Forums List - C3 Corvette Registry = c3vr.com
C3 Corvettes, 1968 - 1982 - CorvetteForum
c3 corvette forums - Google Search
pro-touring.com - mostly not vettes, but good restoration information
DigitalCorvettes


fuel and E85


my entire page on fuel


E85 Ethanol Alternative Fuel - HotRod.com
Octane info
Sunoco standard 110 leaded
cam II octane
404 502 error actually - Hardened seats for unleaded gas Myth or Truth? Page1 - Hot Rod Forums at Hot Rod Magazine Magazine
404 Properties at a Glance | Turbo Blue Racing Gasolines
best answer: 13.1 compression Hotrodders
Understanding compression - Engine Masters
high compression & E85? - Corvette Forum
Sunoco Leaded Racing Fuels
12:1 compression on pump gas - jalopy journal
13:1 compression fuel - LS1TECH
fuel for 13:1 compression - Chevelle Tech
Octane Supreme octane booster
Where to find Race Gas in NE Ohio?! | PitRacer.com - Amateur Motocross
VP-110 Racing Fuel Online
f&l racing fuel
VP Racing Gas Dealers
VP Racing Fuels
Tech Basics: Part 3 - Compression Ratio and Air Fuel Ratio | IndyCarz Forum
Compression Ratios - Ask Anything - Hot Rod Network


gas gauge

Fuel Gauge pegged past full


headlights

2024-06-12 headlight troubleshooting with good images in corvette magazine via zip corvette (local .pdf)

Headlight Vacuum System overview - CorvetteForum
HeadlightVacuumTutorial.pdf
Headlight Vacuum Troubleshooting
77 Headlights Won't open - CorvetteForum
c3 corvette headlights wont open - Google Search
manually close headlights

awesome corvette forum posting by corvette-101 guy (local
    - it appears this was in his original post: An excellent guide for troubleshooting and testing individual headlight vacuum system components is located on Corvette-101. However, the system hose connection diagram on that web site is WRONG as it has the headlight switch hose connections REVERSED. A corrected version of that diagram is shown in Figure 4.
    - and a commenter replied: A little memory tool I use is back to bottom, as in back of the headlight switch to the bottom of the override switch.   
    - as of 2017-07-28, it appears the original poster changed his text to read "However, Corvette-101.com's "GENERAL FUNCTION TEST" for the system as written is NOT a valid test. So simply ignore it and go on down the page for component descriptions, troubleshooting, and tests. Figure 4 is a copy of the hose connection diagram from Corvette-101.com." [c.f. 2011-07-27 11:31AM post]
RELATED AND REFERENCED:
(1) corvette-101 vacuum troubleshooting - at one time had an error described above, perhaps now fixed?
(2) spreadsheet created by poster at 2012-05-22 4:35AM
(3) headlight relay repair, referenced by original poster at 2010-10-08 11:04am
(4) dog bone relay valve repair on corvette forum; referenced by original poster
(5) referrenced by original poster "Willcox Corvette Headlamp Vacuum Hose Schematics http://willcoxcorvette.com/instructions/ Headlamp_Vacuum_Hose_Schematics_68-82_updated_080509.pdf"  which is now dead but was maybe one of these
wilcox schematic wtih pictures of parts
and same with letters showing help reference points
wilcox 68-82 headlamp and windshield wiper vacuum small parts how the operate
(6) referenced by original poster "Headlight actuator removal and repair procedure: 12 http://www.corvettemagazine.com/body/corvette-headlight-repair-makethem- both-open.html" is dead link; probably it is Corvette Magazine - headlight actuator removal and seal replacement

this image was in the download folder on my phone, I searched the webbrowser history and the google history and can't find how it got there; file date was 2016-07-23 1033

Corvette Magazine - Headlight Switch Removal and Installation
Corvette Magazine - how to repair damaged front actuator seal  
Corvette Magazine
- headlight vacuum hose replacement 
Corvette Magazine - headlight actuator removal and seal replacement
   
local manually open image
  orig

grumpy's links and diagrams
vetteworks by J.M. text and diagram
superchevy article


heads

while cleaning up bookmarks 2020-01-04, there was a link to Bill Mitchell Hardcore Racing Products - BMP 024020 SBC 23° 235cc aluminum heads (products->cylinder heads->chevrolet small block->alum 23degree 235cc). Not sure why I linked to this exact one. 

Best Small Block Chevy Heads
Performance Head Comparison - SuperChevy.com
Adding Power With Cylinder Heads
Gain Power with Compression, Cam, and Heads - Hot Rod Network


intake manifold

Dual Plane Intake Manifold Comparisons - Hot Rod Network
single plane intakes i don't have19 Single-Plane Small-Block Chevy Intakes Test - Hot Rod Network
single plane vs dual plane


literature & manuals

Corvsport C3 landing page has all kinds of info on changes during model years, etc.

1975 factory specifications (local)

chilton manual (local)

parts manuals downloaded from here
1
2
3
4
5

corvette history
different factory manuals available
Vette Magazine 1975 articles by Super Chevy
partial factory service manual

1975 Assmebly Instruction Manual  @ Mid America 21.99  and Index  25.99
"1975 Service Manual and Overhaul Supplement", Reproduction" but picture shows 1974? 29.99 @ Mid America
"1975 Service Manual CD" 30.99
          "This 1975 Corvette Service Manual CD contains the entire GM service manual for your specific year. Each Corvette CD also includes chassis, overhaul & body service information." @ Mid America

"1975 1976 1977 1978 Corvette Shop Service Repair Workshop Manual"  "344 page Service manual in PDF Download"  NOT SURE IF THIS IS THE FACTORY MANUAL  344 pages "Ebook Download" @ corvette-world

National Corvette Restorer's Society indicates "1975 Chassis Service Manual *Supplement ( $20.00 )
Recommended Literature for the C3 - CorvetteForum
Parts and Service Manuals
Corvette, 1966-1982 - partial Motorbooks International Google Books
1975 which manual to buy
AIM vs Factory Assembly Manual - Corvette Forum
Corvette America -aim
Must Have repair manuals - CorvetteForum
1974 & 1975 Chevrolet Service Manual Set CD-ROM


Misc

very detailed doc showing differences between C3 model years
The 1968 - 1982 C3 Corvette Buyers Guide

corvette logos from Corvette Central catlog:

and another from Corvette Central catalog


 

 

oil pressure

oil pres gauge
oil pressure gauge Corvette C3 Registry


parts

keenparts.com has a ton of hardware for convertibles good diagrams, at least for convertible top

CorvetteAmerica.com is now part of topflightautomotive.com, so is corvettemods though it doesn't redirect
CovetteCentral.com C3
Ecklers Corvette '75
Zip Corvette
corvetteparts.com
Willcox - it appears that they went under ~2021-10 but the repair section stil works  repairs.willcoxcorvette.com
VanSteel suspension and steering
Mid America Motorworks
Paragon
Big City Corvettes - used and NOS
E.A Gee & Sons Auto Sales     Gale & Adam Gee     911 Router 249 Middlebury Center, PA 16935     570.376.3421 geescorvette@gmail.com   found business cards with catalogs from Dave P from Keithley that I bought it from

door crank clip
tach board - need to send in for calibration?
Willcox Corvette, Inc. - Corvette Parts, Restoration, & Help
doc rebuild
1975 AIM index [this is link to forums???]


repair videos and articles

good video on removing body for chassis restoration by Mid-Year Mitch

youtube video C3 Corvette INTERIOR UPGRADES: Replacement speakers @Corvette-Dan

many C3 specific articles at .corvettemagazine.com
headlight repair

1973 corvette dash removal - YouTube
1973 Corvette dash restoration - YouTube
1973 corvette seat restoration - YouTube
1973 Corvette Carpet Install - YouTube
1973 Corvette C3 Radiator Shroud Removal Pt 1 - YouTube
1973 C3 Corvette Shrourd Removal Pt 3 - YouTube
1973 C3 Corvette Shroud Removal Pt 2 - YouTube
C3 Corvette Drive Shaft Removal - YouTube
Harmonic Balancer Installation Part One - YouTube
1973 C3 Corvette Update - YouTube
1973 Corvette Electric Fans Tip - YouTube
1973 Corvette Electric Fans Tip Pt 2 - YouTube
1976 Corvette Project Part 1 - YouTube


roller rockers

Roller-Rocker Ratio Test
Dyno Shootout: Solid Roller Vs. Hydraulic Roller - StangTV
Solid vs. Hydraulic Roller Camshaft Shootout! Engine Masters Ep. 10 - Hot Rod Network
Hydraulic Roller Cam Swap - Hot Rod Network
Hydraulic Roller Cam Swap


stereo

google this for many posts "c3 corvette radio replacement site:www.corvetteforum.com"

Dialing in the Sound of Music in Your C3 Corvette

How to Install Modern Audio Into Vintage Corvettes

Installing aftermarket radio in a C3 - Corvette Forum
color coded wiring hard diagrom
Stereo Wiring Diagram - ProStreetOnline.com
How to Install Audio Into Vintage Corvettes


suspension

superchevy: Rebuilding C3 Corvette Front Suspension


tachometer

75-77 used different board than 87-82
Willcox board for $58
Willcox installation video
Corvette Enthusiast article on tach boards (local)
rebuilding instrument cluster from corvette magazine
replacing board from corvette magazine
diagnosis thread
another diagnosis thread test first per Willcox


transmission

B & M brand installation video
For B & M, looks like I want either part 20228 or 20229, not sure what the difference is beyond 20229 instructions saying transmission needs dropped
"One of the main features of the B&M TH-400 Transpak is that it gives you the ability to downshift into low gear at any speed and you can also hold the transmission in low gear up to any speed you want. "

Manual vs Automatic - hotrod
clutchless automatics
TransGo-Video Assistance
TransGo THM 400, 3L80: 400-PRO
Search Results for TRG-400-3
T400 build - Hot Rod Forum
Transgo GM TH400 Reverse Cushion Kit
T-400 full manual conversion - Hot Rod Forum
Turbo Hydra-Matic 400 Transmission shift modification - YouTube
High stall converters
Gear Ratio Calculating - superchevy
How Gears Work - HotRod.com
Drive-Axle Ratios - Worktruckonline.com
404 TransGo THM 400, 3L80
404 TransGo THM 400, 3L80: 400 RK
1972 Chevrolet Corvette Scarlett Project Car - Six-Speed Manual


vacuum lines

Corvette Vacuum - Tumbleweed Transmission
Heater/AC Vacuum Lines Don't Match Diagram - CorvetteForum
1968 HVAC Controls Have No Effect - CorvetteForum


 windage trays

Grumpy's take on windage trays
Oil Windage - hotrod.com
Windage trays - HotRodders.com


winterizing

corvettemagazine article


 

wiring

1972 entire rewire
all '68-'82 Corvette Wiring Diagrams - Tumbleweed Transmission
offering wiring diagrams - CorvetteForum


last updated:    Sun 2024-07-14 7:07 AM