5.7 cylinder head installation

[StevNimrod]

Re: 5.7 cylinder head installation

We're saying the same thing:

The original Vortec 350 head bolts are not TTY.

The heads bolts removed from MY Vortec 350 were TTY. So someone prior to me had head work done and replaced bolts.

The service bulletin I was THINKING about, mistakenly, applied to smaller Vortec engines, I-6 and down, NOT V-8s.

 

[Matt89GT]

Re: 5.7 cylinder head installation

why does anyone not suggest a ARP head stud kit with a premium gasket such a cometic or fel pro z series gasket both are multi layer steel very durable and will hold up alot more than a standard cheap gasket and if you ever have to do them again which I doubt with the studs you wont have to worry with replacing fastners anymore, just my 2 cents

 

[Don S]

Re: 5.7 cylinder head installation

why does anyone not suggest a ARP head stud kit

Because they aren't needed. There is no reason to replace the head bolts, unless they have damage threads or heads. They are NOT TTY bolts. Pay attention.

with a premium gasket such a cometic or fel pro z series gasket both are multi layer steel very durable and will hold up alot more than a standard cheap gasket

Not familiar with marine engines are you...... You DO NOT use steel head gaskets on marine engines that are raw water cooled.

 

[Matt89GT]

Re: 5.7 cylinder head installation

Because they aren't needed. There is no reason to replace the head bolts, unless they have damage threads or heads. They are NOT TTY bolts. Pay attention.


Not familiar with marine engines are you...... You DO NOT use steel head gaskets on marine engines that are raw water cooled.

" Pay Attention " I would replace the bolts regardless of TTY or not, almost a rule of thumb and for you genius its a steel core gasket in MARINE APPLICATION you must not be familiar with any parts period automotive or marine, thanks

 

[Don S]

Re: 5.7 cylinder head installation

Just another newbe with all the answers.

 

[Bondo]

Re: 5.7 cylinder head installation

" Pay Attention " I would replace the bolts regardless of TTY or not, almost a rule of thumb and for you genius its a steel core gasket in MARINE APPLICATION you must not be familiar with any parts period automotive or marine, thanks

Ayuh,... Maybe you outa be lookin' though the Fel-pro catalog for awhile,...

Marine headgaskets begin with Stainless Steel....

You're quite WRONG...

 

[Matt89GT]

Re: 5.7 cylinder head installation

Just another newbe with all the answers.

I'm far from having all the answers. What I asked was why noone suggested them and it was IMO, I am totally open to constructive critism just not to rude comments If I had all the answers Don I would not need these forums. so your saying using a multilayer steel CORE gasket thats for marine application is not something thats good for a raw water cooled boat? And as far as head bolts they would be replaced with studs maybe overkill however thats just me, But you have my attention with why not to use the gaskets., thanks

 

[Matt89GT]

Re: 5.7 cylinder head installation

yeh bondo I hear ya on the stainless steel it doesnt specify if they are stainless or not that just they are for the harshest of marine applications, Like I say I'm learning man these marine engines. I'm a ford guy thats built ALOT of low compression small blocks for boost and high compression pump gas motors. Im still learning all the do's and dont's for marine.

 

[Don S]

Re: 5.7 cylinder head installation

Like bond-o said, STAINLESS Steel, not steel. or composite is what is used in marine engines.
Head bolts are NOT TTY on SBC engines, sure you can replace them if it makes you happy, but it's not a rule of thumb and it's not requiered by GM, Volvo, or Mercruiser. So where do the Rules of Thumb come from?????

This is a boating forum, when people come here they expect correct answers. Doesn't always happen, but they expect it.
When someone makes all these statements that "It's a Merc Service Bulletin" then it turns into a GM service bulletin on the head bolts being TTY, and it isn't , then we have a newbe come in saying it's a rule of thumb, and none of it can be verified, at that point, it's just someones opinion, not fact.
So I just call everyone out on it. Backup your statement with facts, bulletins, info from GM, Volvo, Mercruiser, don't just reply to a thread with "THIS IS HOW IT IS, because I say so" cause it won't fly. I am expected to back up what I say, and I expect it from others that want to give fact.


EDIT: See you posted this while I was typing. Kind of explains some of my comments doesn't it.

I'm a ford guy thats built ALOT of low compression small blocks for boost and high compression pump gas motors. Im still learning all the do's and dont's for marine.

 

[Bondo]

Re: 5.7 cylinder head installation

yeh bondo I hear ya on the stainless steel it doesnt specify if they are stainless or not that just they are for the harshest of marine applications, Like I say I'm learning man these marine engines. I'm a ford guy thats built ALOT of low compression small blocks for boost and high compression pump gas motors. Im still learning all the do's and dont's for marine.

Ayuh,... I hear ya Matt,...
But,...
Just a tip from an ole fart that turned a few nuts,...
Don't Poo in the hat of the guys showin' ya the way.....:redface:

We're all newbies at something at sometime,....

 

[rodbolt]

Re: 5.7 cylinder head installation

poor DonS.
he has never ever replaced a head or rebuilt a motor.
unlike matt89GT thats done hundreds of marine rebuilds.
however both DonS and myself remember manual chokes on cars as well as points and AM radios.
why use all the silly stuff? the engineering is already done.
if the head bolts are in good shape with no rusted tips reuse them with the correct volvo gaskets and the correct sealents in the service manual callout and it will run thousands of hours or until it gets torn up again.
normally from overheating or over propping.
overpropping is typically the reason to tulip a valve.
if you dont correct the problem it will tulip another.

 

[Matt89GT]

Re: 5.7 cylinder head installation

I have never built a marine engine at all, NOT YET so I am indeed gathering facts from some of you professionals before I assemble a automotive engine and expect it to work for a while, LOL this is pretty damn funny at this point I simply ASKED (not knowing) why people dont use certain pieces in their motors and its turned into this, from ASKING WHY so that I would know, just a simple question so that I do know .........thanks