C4 Top End Reassembly

My Corvette Life: Episode 372 - C4 Top End Reassembly
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Car tuned by Arizona Elite Motorsports
(91 Octane, Mustang Dyno)
1998 C5 Corvette Coupe - Modifications List
Corbeau A4 Seats
Thunder Racing T-Rex Cam TR224: 224/224 563/563 114LSA
Kooks 1-3/4" x 3" Long Tube Headers
Kooks Catted 3" X-Pipe
Corsa Indy Pace Car (Corsa Sport) axle-back exhaust
Casting 799 - LS6/LS2 Cylinder Heads
BTR .660" Lift Dual Valve Springs
7.375" Pushrods
FAST 92mm Intake Manifold
LS2 Throttle Body
Bosche 42 lbs Fuel Injectors
Vararam Lower Ram Air Intake
Vararam Power Duct (Air Bridge)
Mike Norris Motorsports - Billet PCV Oil Catch Can
DeWitts Radiator
DeWitts SPAL Fan Upgrade
aFe Controls / PHADT Control Arm Bushings
Baer Tracker Adjustable Tie Rod Ends
C6 Z06 Shocks
C6 Z51 Sway Bars
C6 Z06 Brakes
Stainless Steel Brake Lines
Xineering Downshift Blip Module
C5 Z06 Mesh Intake Grills
C6 Z06 Shifter
C5 Stainless Steel Dash Trim Kit by American Car Craft
RaceGrip Suede Steering Wheel Covers
Corvette Envy LED Halo Tail Lights
Corvette Envy ACA Projector Headlight Housings
Clear DRL Housings
Vette LEDs DRL Switchbacks (Use code "MCL5 for 5% off)
Vette LEDs Reverse Lights (Use code "MCL5 for 5% off)
Vette LEDs Cabin Lights (Use code "MCL5 for 5% off)
C7 Carbon Vented Front Splitter - Gloss Black
C7 Carbon ZR1 Style Side Skirts - Gloss Black
Corvette Creationz TPE 2" Flared Rear Quarter panels
C6 Z06 Rear Splash Guards
Forgestar F14 Wheels
(18x9.5 +49 Concave front, 19x12 +23 Super Deep Concave rear)
Tires: Bridgestone (Front) 275/35/18, (Rear) 325/30/19

[@pawegil6526]

you have a wealth of knowledge about the c4 corvette. I'm just learning. Greetings from Poland

[@dukeman7595]

Chris you did a great job, you weren't afraid to do it yourself; you may be surprised how many of us are..

[@r.j.s.kierkels2218]

30 minutes: welcome to the C4 world LOL!

[@mycorvettelife]

😅

[@russelladdison5094]

Thanks! I've actually been working on corvettes since I was 15 years old. I learned rebuilding a couple of C3s, a '72 with a 454, and a '73 with a 350. Now I'm looking to inherit a '89 with a little over 16k original miles, and it hasn't been started in about 13 years! So I need all of these videos to guide me around the LS1!

[@richardendress4494]

You certainly made installing the air plenum gaskets look easy. Mine are incredibly tight, only got one installed last night. Will take it apart and try it again tonight.

[@marctremblay1102]

FYI. Number 1 plug is front driver side

[@45auto82]

As always, a very interesting & satisfying video, Chris! Those cleaned or repainted parts look so much better now! Know it was A LOT of work, but sure looks like a million! Great job on the mechanics, video and audio qual best as ever.

[@stevediduck9963]

Like I said before Chris, you have more patience and know how than anyone I know. I'm truly just jealous. I'm sure doing what you do. Gives you much satisfaction. I'm sure everyone watching would agree. Great job. Look forward to you finishing this part. Regards, Steve

[@armandobaca8703]

Looks like you need to buy some cordless power tools that may help you do things faster. Keep it up the good thing and it's helping you stay out from pricey auto shops at the same time. If you can do it from going to an auto shop do it unless is absolutely necessary.

[@mycorvettelife]

I have power tools. 99% of the time they are too big to fit in the placed I need to use them, so I never use them.

[@vetteman892000]

The spark plugs are easy! Just unbolt the upper inner wells and you have a straight line access to most of them. There’s just 2-3 that you have to use a universal joint to get the right angle. 👍 Great video!

[@JIMFED63]

Nice job Chris. I’ve taken my tuned port injection completely apart like you did and added the SLP Siamese runners, what a pain but hopefully don’t have to take it apart again for a long time.

[@mycorvettelife]

👍

[@dansharos]

Engine looks almost brand new!

[@mycorvettelife]

👍

[@roberteyres424]

Thanks for all the great videos Chris.

[@mycorvettelife]

🙏🏻

[@williamhill386]

Chris, fyi coolant hoses thru throttle body are for heating coolant for cold climates which in your case I don't think you need ( less heat denser fuel) I've read slight increase in horsepower and some throttle response. And I've seen the results of removing the frisbe ( disc on front of water pump)of around 10 hp.

[@dicklarge1901]

This is a good video for reassembly, for all the stupid little air line locations.

[@mycorvettelife]

👍

[@yasharali2495]

Donald Combs has a great series on disassembly and reassembly of the L98.

[@89vette1]

Brings back memories. Had an 89 6 speed. I had stock intake with cnc heads, cam, then large tube runners, then ported stock intake, then tips big mouth, then extrude honed that and added AFR heads. Then added a super ram, and that ported and extrude honed. Then built a 396 stroker with a mini ram and a custom cam. Then back to super ram. Then new afr heads and rebuilt stroker and added a tips solid cam and a single plane intake converted to fuel injection. Plus different headers exhaust and hundreds of hours tuning it. Finally I let it go and the new owner has been enjoying it for about 10 years.

[@anthonysacco1547]

To maximise O-ring swell, use 'Silicone Spray Lube ! It's also highly combustive, and top tear in lubrication.

[@dalemihocik4732]

Very nice work , this series will greatly help any owner that has the L98 engine . I see that you didn't add the air foil modification to the throttle body . I would like to hear your thoughts about the air foil .

[@mycorvettelife]

I will probably eventually get one, even though I seriously doubt it does anything.

[@gizzmo5952]

I bought a 1986 pace car convertible that was a flood victim, then sat beside a pole barn for 3 years. I've completely dissembled the poor car, cleaned, replaced broken parts and refurbished what I could. Been done now for 15 years, and enjoy it when weather permits. I rebuilt it in the pace car theme, and did the interior to what I would have done if I was the factory designer. Wish I could send ya a picture of what I got, think you love it. You need the factory assembly manual from Mid America Motorworks, that would help you alot, plus a Haynes manual. Gives you all the specs to adjust everything. Electric components use volts measurements to adjust to perfection.

[@dicklarge1901]

The easiest way I found was to remove the wiper motor cover to get my valve cover in.

[@edgardovigocastillo794]

Wow what a difference with the valve cover restore, Love L98 look more than LS.

[@r.j.s.kierkels2218]

Hello Chris, in your voice I can really hear the sweat on your forehead LOL! Great job !!!! Looks really sweet!

[@mycorvettelife]

Thanks

[@TheBlkac1]

Great job on putting everything back together...Where did you send your injectors off to, to get rebuilt? and how much did you spend?

[@flatearthvegans9446]

Looks great! They are going to love it at the next car show !! 👍👍

[@TheBlkac1]

Hey😃Chris👍🏿 The valve covers are THIGHT!!!! looks good!👍🏿💯 improvement!!!! I need to have you do mine!😁✌🏿

[@mycorvettelife]

👍

[@TheBlkac1]

@@mycorvettelife Hey Chris when I make my drive to California I'd like to look you up once I hit Arizona😃👍🏿 I'm going to drive my C4 👍🏿😁

[@boomstick68]

I'm interested in your other TPI parts. Email sent....valve covers are popping. Mine were too corroded to restore. Good job.

[@nosefirst]

You are doing some really nice work and am sure the end result will be wonderful but you are making me really glad that I do not have a C4. As I watched the intake manifold going together, I lost count on the number of potential vacuum leak points. That engine must have been designed by a GM committee.

[@mycorvettelife]

😅

[@45auto82]

@ Kent Schroeder Hah! Good one! The C4 ZR1 was designed by LOTUS, and built by Mercury Marine! Only DOHC in a Corvette I believe.

[@jonstapleton76]

Good job man! You doing the exhaust next?

[@mycorvettelife]

C4 spark plugs, wires, and distributor parts.

[@jonstapleton76]

@@mycorvettelife oh ok, you probably said that and I missed it lol.

[@SuperGerry2009]

Another chore Chris I enjoyed thanks superrrrrrr.

[@markpersico604]

Chris, I tried to find your new c-4 t-shirt on spring and could not locate it. Mark

[@johnroberts4571]

Awesome video

[@davidshaw7454]

Enjoyed your video !

[@mycorvettelife]

Thanks

[@calebeugenis2732]

this video is a life saver!! thank you sir!

[@mycorvettelife]

👍

[@markcummings737]

Have you got a segment home replacing the signal switch module on a 89 Corvette

[@colt5189]

Wait until you have to change the water pump. A real pain, but make sure to get a new aluminum one if you do. As it will last longer than a rebuilt unit as you don't want to have to do it again.

[@sugarbea]

Hey Chris, did you put c clips back on the injectors, or leave them as is?

[@RTMZ06]

From the last video it looked like those LS style injectors have a notch for the clips but it doesn’t look like it aligns with the machined slots on the fuel rails.

[@mycorvettelife]

I did not have the c-clips.

[@jaimetiscareno9079]

Why I have a problem with the acceleration with my Corvette 1989

[@russelladdison5094]

Whoops! Mine doesn't have a LS1!🤣

[@TheShred]

I’m going to be doing this job tomorrow on my 87. Any advice?

[@bobo12055]

What type of Quick jack do you have? I want to get one for my 89 vette so I can work on the under side of it. Thanks

[@user-gq6lk1gd4i]

I haven't seen you torque any bolts. Is that wise?

[@mikemaifeld6280]

What is that sensor with the plug on the bottom of the Plenum? thanks

[@beginerkk416]

Hey sir at 18:20 in your video that steam line i am getting a leak around the metal housing that is connected to the intake manifold do you have any ideas on what i should do.

[@tyriesmoothbundy3506]

What is the part that sits right by the a/c compressor?

[@kennygibbs9627]

Is there a way to clean the top intake aluminum Chris?

[@HearingDogs5]

Hi Chris, I have a question about my 87 corvette. Bought a new Delco coolant temp sensor. Because receiving a low coolant warning and check engine light warning. The car is running rich, idle ruff at times, and smelling the gas after driving it. NOW, I can’t find where the sensor is located, to remove the old and install the new one. Can you help me out with this question? Thank you so very much! Have a blessed day! Sincerely, Nina

[@grifolahloww3407]

hiw can i identify the fuel lines ? i kind of moved them out of place

[@danborski6175]

Did your plenum have lot of carbon in it

[@richardendress4494]

I am surprised you did not remove the EGR and Smog pump. Do you get inspected there?

[@linfordmoore3349]

Did you remove the hood?

[@terryholston872]

Would the valve covers have been easier to get in place before you put the fuel injector runners and intake back together? Also, I bought one of those insulators you are waiting on, put it on and wondered where the smoke was coming from. It had Velcro fasteners and the heat from the crossover pipe melted the Velcro, wasted 12 bucks...LOL By the way, looks great!!!

[@mycorvettelife]

No, they don’t conflict with the intake runners.

[@mdsprods8218]

Hey Chris, what emissions valve did you use for the passenger side valve cover? I understand the driver's side one is a PCV valve, just not sure what the one on the right is supposed to be

[@mycorvettelife]

It’s the same.

[@skizzags]

Chris, I know pricing will be different everywhere you go, but how much did it cost to have the injectors cleaned and tested? How did you decide to go the cleaning route vs replacing them?

[@mycorvettelife]

$200. I decided to clean them because they were not the original ones anyhow, so they were already newer.

[@russelladdison5094]

Chris, did you have to do any wiring on your C4? I've got some fried fuseable links in mine, and I need some knowledge about replacing these.

[@mycorvettelife]

No

[@steveo3947]

Which tool are you using to get the angle on the lower runner t40 bolts?

[@mycorvettelife]

Just a straight T-handle

[@steveo3947]

Alright, I had trouble with my 3/8 drive. Thanks for the help!

[@yetiyana]

Where did you get your new EGR Valve?

[@mycorvettelife]

Rock Auto

[@butch4365]

Chris, I have an '86. How tough of a job is it to remove the runners and reinstall them?

[@mycorvettelife]

It’s not that hard if you take your time and have the proper tools.

[@johnbryan911a]

Could you comment on this 9th cold start injector did you clean it as well if so how?

[@mycorvettelife]

You can, same as the other 8. IMO it’s not necessary. I did not have it cleaned when I did the 8. I sent them out to be professional my cleaned.

[@johnbryan911a]

@@mycorvettelife I saw a DIY method on KZbin that was pretty interesting but I am agreeing it probably is not necessary