Cylinder Head Install
Thread Starter
Burning Brakes
Joined: Mar 2002
Posts: 1,035
Likes: 0
From: Atlanta Ga
What about lifter height changes considering the engine as been down for 3 weeks! There hasn't been oil flowing to pump them up. I'm pretty certain these are hydraulic lifters. Do I need to factor that in on the adjustment?
Race Director
Joined: Feb 2004
Posts: 12,517
Likes: 19
Yep that's what I've got. Moving on to rockers and exhaust now. I marked the balancer for the 4 locations so it should make the valve adjustment more precise.
What about lifter height changes considering the engine as been down for 3 weeks! There hasn't been oil flowing to pump them up. I'm pretty certain these are hydraulic lifters. Do I need to factor that in on the adjustment?
What about lifter height changes considering the engine as been down for 3 weeks! There hasn't been oil flowing to pump them up. I'm pretty certain these are hydraulic lifters. Do I need to factor that in on the adjustment?
Le Mans Master
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
the only heads that I know of are 84 - 86 e heads where accessory bolt holes are drilled on one end only. your alum. heads are non specific. Those rockers and exhaust look great.
Race Director
Joined: Nov 2003
Posts: 12,221
Likes: 446
From: Overland Park Kansas
2020 Corvette of the Year Finalist (appearance mods)
C4 of Year Winner (appearance mods) 2019
Bolts act as springs. When torqued (within their limit), they stretch. When they are loosened, they return to their origional size.
You don't need bolts, unless yours were compromised.
If you choose to buy new bolts, they must be torqued, and loosened 3x to proprly roll in the threads.
Pulling them out of the package, and torquing them to spec will not allow for full torque value.
Save your money for beer.
You don't need bolts, unless yours were compromised.
If you choose to buy new bolts, they must be torqued, and loosened 3x to proprly roll in the threads.
Pulling them out of the package, and torquing them to spec will not allow for full torque value.
Save your money for beer.
gp
Race Director
Joined: Feb 2004
Posts: 12,517
Likes: 19
Yes.
I am not saying all c4 vettes used "normal" bolts. I am unclear exactly when GM went to the TTY head bolts on small block chevy. I think it occurred in 1997 for the ls1, but just a guess on my part.
Thread Starter
Burning Brakes
Joined: Mar 2002
Posts: 1,035
Likes: 0
From: Atlanta Ga
Yeah, saw a posting about that, I'm not sure what I'll use to get into the cover and cut down the drop tabs, I guess a dremmel with a cut off disc. Can't fit my air cut off tool in there.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Safety Car
Joined: Oct 2008
Posts: 4,689
Likes: 4
From: Yucaipa CA
Thread Starter
Burning Brakes
Joined: Mar 2002
Posts: 1,035
Likes: 0
From: Atlanta Ga
OK, got the plugs in some of the coolant hoses on the bottom and dropped on the intake, that went better than I thought it would not that bad a job.
I put the distributor in but I'n not 100% on the position, The engine is at TDC for #1 and it should be pointing between 5 and 6 o'clock looking at the motor from above.
Can anyone offer their opening from the picture if they thin this is right.
Is there any way to confirm that you are in the right slot of the distributor other than firing it up????
I put the distributor in but I'n not 100% on the position, The engine is at TDC for #1 and it should be pointing between 5 and 6 o'clock looking at the motor from above.
Can anyone offer their opening from the picture if they thin this is right.
Is there any way to confirm that you are in the right slot of the distributor other than firing it up????
Melting Slicks
Joined: Feb 2008
Posts: 3,286
Likes: 6
From: Palm Beach
Remember that a four stroke is at TDC twice. You must be at TDC on the compression stroke. IE both valves closed.
OK, got the plugs in some of the coolant hoses on the bottom and dropped on the intake, that went better than I thought it would not that bad a job.
I put the distributor in but I'n not 100% on the position, The engine is at TDC for #1 and it should be pointing between 5 and 6 o'clock looking at the motor from above.
Can anyone offer their opening from the picture if they thin this is right.
Is there any way to confirm that you are in the right slot of the distributor other than firing it up????
I put the distributor in but I'n not 100% on the position, The engine is at TDC for #1 and it should be pointing between 5 and 6 o'clock looking at the motor from above.
Can anyone offer their opening from the picture if they thin this is right.
Is there any way to confirm that you are in the right slot of the distributor other than firing it up????
Drifting
Joined: Dec 2005
Posts: 1,313
Likes: 2
From: High Ridge Missouri
You are correct Pete. Except I'm pretty sure the LT5 used TTY bolts (I'm sure if I'm wrong a ZR1 guy will correct me) which I know has little relevence to this particular thread.
Thread Starter
Burning Brakes
Joined: Mar 2002
Posts: 1,035
Likes: 0
From: Atlanta Ga
I'm just trying to make sure I've got the dizzy right!
Safety Car
Joined: Oct 2008
Posts: 4,689
Likes: 4
From: Yucaipa CA
thats where mine points for #1 ... just turn motor over till #1 intake valve starts to open. then by hand turn crankshaft clockwise till the timing mark lines up with "0" even if it's off the distributor can be pulled easily with everything together. Oh and make sure you connect that 4 wire EST connector before you put more together it was buried on my 90 and real hard to reconnect after it was all back together.
Le Mans Master
Joined: Dec 2002
Posts: 5,270
Likes: 3
From: Seattle Area WA
#1 on the dizzy is completely variable based on where you install the cap and put the #1 plug wire. It could be anywhere.
If the motor is at TDC #1 then install #1 where the rotor is pointing. If you want to have #1 somewhere else, pull out the dizzy, rotate the pointer and install again.
If you need to verify TDC there are tips mentioned here, but it sounds like you are sure of where it is.
If the motor is at TDC #1 then install #1 where the rotor is pointing. If you want to have #1 somewhere else, pull out the dizzy, rotate the pointer and install again.
If you need to verify TDC there are tips mentioned here, but it sounds like you are sure of where it is.
Thread Starter
Burning Brakes
Joined: Mar 2002
Posts: 1,035
Likes: 0
From: Atlanta Ga
I think I've got it right, I still had the cap with the wires to the driver side clinder attached. From that I could determine which wires were 1,3,5,7. So I put the cap on and put a mark at the bottom of the dizzy body right at the #1 post. Then I lined up on this. I think I may have been off one tooth in my previous install.
We'll find out when I fire it I guess!
Disappointing weekend progress, didn't get much done!!!!!! And now I've misplaced the fuel rail bolts, figured that out about 2 hours ago!!! Any one no the size in case I need to replace?
We'll find out when I fire it I guess!
Disappointing weekend progress, didn't get much done!!!!!! And now I've misplaced the fuel rail bolts, figured that out about 2 hours ago!!! Any one no the size in case I need to replace?
Safety Car
Joined: Oct 2008
Posts: 4,689
Likes: 4
From: Yucaipa CA
make sure you check all your fuel rail O-rings and diaphram before installing it ..... just cheap insurance. ... Oh and plug the IAT sensor in under the plenum before you bolt it on cause it is a bitch to plug the harness in if you forget.
Thread Starter
Burning Brakes
Joined: Mar 2002
Posts: 1,035
Likes: 0
From: Atlanta Ga
I lost all four! I think folks have given me the right spec and I can pick some up tonight to try.