1970 Chevelle SS 454 LS6 Rebuild + Details
 

This thread continues from were i left off on the previous thread topic on "Need tips on taking a 454 Motor Out"
https://www.yenko.net/ubbthreads/ubbt...552#Post467552

I will slowly show photos and details on rebuilding the Motor and it's surrounding parts.
I will also ask questions as i go along and ask to help identify parts.
All your opinions and tips will be much appreciated as you guys are a great help as always in guiding me in the right direction [img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img]

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

First Off is the Engine bay without the Motor.
If you spot anything that does not jive, let me know.
The Brake booster has never been off the car so it stays as a survivor part with it's faded silver color (i know it should be Gold Cad plated).
The Windshield Washer Motor also seems to be a survivor so i will also leave that alone.
Wires just needed a good clean up and there were no splits or rewired pieces to be found (only had to ad a new wiring connection for the -Negative wire for the Tach Brown wire that goes to the coil as the other Connection plug was hooked up for the former HEI ignition system.
Original Brake lines were polished with a wire brush and then sprayed with Krown T40 protection.

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: XXXBlackLs6M22</div><div class="ubbcode-body">
.....The Brake booster has never been off the car so it stays as a survivor part with it's faded silver color (<span style="font-weight: bold">i know it should be Gold Cad plated</span>).</div></div>

I've seen pictures of new cars delivered with silver brake boosters.... they were on Nova and Camaro though, so Chevelle may be different.

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: John Brown</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: XXXBlackLs6M22</div><div class="ubbcode-body">
.....The Brake booster has never been off the car so it stays as a survivor part with it's faded silver color (<span style="font-weight: bold">i know it should be Gold Cad plated</span>).</div></div>

I've seen pictures of new cars delivered with silver brake boosters.... they were on Nova and Camaro though, so Chevelle may be different. </div></div>
Here are some close up details of the Brake Booster with Part#/Julian Date and upside down Delco Moraine logo.
Car's final assembly date was April 23 1970 as per Build Sheet.

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

Here is the LS6 Smog with Exhaust manifolds Restored and ready to go.
Some numbers i can't figure out?
Also let me know if these are all correct smog parts for the LS6 (Pretty sure they are but i just want to confirm).
All the smog hoses and clamps are the originals.
The picture of the Exhauast shows i grinded off the flap, Drilled a small hole and added a cotter pin to keep the side of the bar from sliding, I figured why bother having the heat riser with the flap if the car never gets used on cold days!
The Exhaust heat riser will still operate but with no Flap in the damn way (free flow all the time).

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

Exhaust Manifolds Bead blasted and VHT baked on the BBQ.
Came out fantastic,you can not scratch this stuff off as it baked right into the pours of the metal.
Both manifolds are dated the same.
Bottom picture was taken before the manifold was blasted and painted,so you can see they were not in bad shape at all.

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

Here is the Smog Pulley

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

Do you need a white SMOG fan?
Your SMOG Pump shows an assembly date of March 19th,1970.
I know you said you have an April 23rd car,but what's your engines' assembly date?

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mr70</div><div class="ubbcode-body">Do you need a white SMOG fan?
Your SMOG Pump shows an assembly date of March 19th,1970.
I know you said you have an April 23rd car,but what's your engines' assembly date? </div></div>
The Fan is white underneath the Pulley, Is that the fan you are talking about? if so i do not need it.
Can you tell me were you got the March 19th date From the smog?
(Which Photo)
Engine assembly date is March 26 On the front of the block and March 5 Casting at the rear of the block.

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

Yeah..that's the fan.
March 19th comes from your 07801S code on the machined pad.

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mr70</div><div class="ubbcode-body">Yeah..that's the fan.
March 19th comes from your 07801S code on the machined pad. </div></div>
Sorry to ask but i am still learning something new about these cars everyday.
How did you get March 19 from 07801S
Is 078 a julian date for 78th day of 1970, also what does 01S mean? 1970 first shift?

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

078=78th day
0=year,1970
1=shift
S=Saginaw

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mr70</div><div class="ubbcode-body">078=78th day
0=year,1970
1=shift
S=Saginaw </div></div>
Thank You very Much Mr70.
I will be doing a photo file for my car so to fill in all these blanks will be great. [img]<<GRAEMLIN_URL>>/beers.gif[/img]

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

Carb was sent to Jeff Dotterer by the previous owner.
It is Rebuilt with high quality and ready to be reunited to the low rise intake (it also came with a certificate from Jeff).
Here are photos of the Cowl Induction Air cleaner system.
Does anyone know what that &quot;W&quot; stamp means that is under the cowl spacer retainer?
The cowl induction Rubber seal is a NOS GM piece.
Also what does the &quot;L&amp;T&quot; mean under the intake on the splash pan.

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

Still would like to know what that &quot;W&quot; stamp means that is under the cowl spacer retainer?
Also what does the &quot;L&amp;T&quot; mean under the intake on the splash pan?

Moving on to the next item is the Fan/Clutch/Shroud and Pulley.

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

I think your fan shroud is the later service replacement.
The originals had a cast-in part number that ended with &quot;165&quot;

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

Rick you are correct,
It is an over the counter NOS GM unit 3rd design shroud.
Any Idea what the &quot;W&quot; logo means under the Cowl retainer means or the &quot;L&amp;T&quot; logo on the intake splash pan?

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

I see that &quot;W&quot; on some fan's and other misc. stuff, think it is just a vendor stamp ?

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: m22mike</div><div class="ubbcode-body">I see that &quot;W&quot; on some fan's and other misc. stuff, think it is just a vendor stamp ? </div></div>

I'm with Mike on that, as well as the L&amp;T on the splash pan, but not really sure.
There are quite a few parts on these cars that have various odd letter stamps and some of them have been figured out to be just that, Vendor stamps.

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

Thanks guys,
I know they are vendor stamps but was interested to know what company &quot;W&quot; + &quot;L&amp;T&quot; are.
Maybe &quot;W&quot; is Winters?
I am sure someone knows who these vendors are, kind of interested to know what all the logos mean since i am documenting every part with a photo and description in a file i will keep with the car. [img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img]
Most of the questions i will ask on this thread are ones that i could not get from GOOGLE searches, I tried but could not find any past discussions on these logos.

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

I dought Winters made stuff like sheet metal parts, As you may know Winters was a foundry here in Canton Ohio.

Mike

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

Monday night i hired my engine builder and i decided to go with Roller rockers and lifters for better durabilty from the engine. I will also be using Flat top pistons to achieve a compression ratio of 10-1 or 10-5 as i want to run 94 premium gas from a gas station without always putting in an additive.
I will also install the Pretronix kit under the stock distributor cap.
The stock dimple rods will be used again and i all ready Sold the Used pistons a few weeks back.
I plan to drive my car a lot so this set up makes more sence for my tastes.
Car will still make a lot of ponies and look bone stock under the hood[img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img]
For the Exhaust i will be using the stock 69' Chambered exhaust system that came on the car as i just love the sound these make.

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

You may be pushing the issue with 10 or 10.5 to 1 compression with pump gas and iron heads...of course a modern design roller cam (I assume hydraulic?)would help. I would be interested in more of the build specifics you have in de-tuning the motor for street use...sounds like a great project.

wilma

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

Wilma we know this, the motor rebuilder has done a lot of Big Block Gm Motors and he knows what to do to make it run right.
Yes he will be using Hydraulic Roller cam with lifters and rockers.
He will decide on the specs after all the measurements are done and dialed in.
I will post what parts i am using when the motor starts in 2 weeks time.
Looking forward to putting this LS6 back to life.
Every part will be brand new except for the LS6 rods.
Block is at .30 over and heads are bone stock, crank is a stock 7416 piece.

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

Here are the gm Dimple Rods and Harmonic Balancer.
The Harmonic Balancer is now sand plasted with a shot of primer since photo.

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

Why not leave the solid lifters in there? Just curious...

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MosportGreen66</div><div class="ubbcode-body">Why not leave the solid lifters in there? Just curious... </div></div>

I still may go with solid lifters yet,
Will decide in a few weeks when it is time to choose a cam.
The solid lifters roller Rocker arms have the lockers on the top so once they are set they should not be a hassle to adjust.
They also make more power i guess.

Wondering what everyone else has done here with there hi performance motors?

I just want to build a nice running motor that will be low maintenance and run good on 94 octane pump gas.

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

My 2-cents?

If it was mine, I sure wouldn't be messing around with a hydraulic roller or clipping the compression. Running the valves, checking plugs, chasing the timing and playing with the Holley is part of the fun from my perspective. But that's me I guess. [img]<<GRAEMLIN_URL>>/grin.gif[/img]

Wayne

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

All of my hi-po engines have solids. They do not need to be adjusted all the time. I have 5000 miles on a 427, with only one valve lash. My bone stock L78 has thousands of miles on it too, with no valve lash in years. Even my old 392 Hemi hasn't needed a lash yet.

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

Its part of the fun. And frankly what good is an LS6 without the noise of the motor?

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: TDW</div><div class="ubbcode-body">All of my hi-po engines have solids. They do not need to be adjusted all the time. I have 5000 miles on a 427, with only one valve lash. My bone stock L78 has thousands of miles on it too, with no valve lash in years. Even my old 392 Hemi hasn't needed a lash yet. </div></div>

I agree 100%

Dan

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

Ok Guys,
I am going with <span style="color: #FF0000">Solid lifters</span>.
Still havent ordered my cam,lifters,rockers,pushrods etc...
so lots of time to order the parts.
Here is the original Distributor restored by Jeff Dotterer with certificate.
Also photos of my Original Alternator.
Yesterday i was busy restoring the Wiper Washer Motor which came out fantastic,i will post photos later of that piece.

Question, Does anyone know what the &quot;DSL&quot; logo means on the Waterpump to Alternator bracket?
Also why does this bracket have a special fitting in it,is it a support hole for the smog pump?

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: XXXBlackLs6M22</div><div class="ubbcode-body">Monday night i hired my engine builder and i decided to go with Roller rockers and lifters for better durabilty from the engine. I will also be using Flat top pistons to achieve a compression ratio of 10-1 or 10-5 as i want to run 94 premium gas from a gas station without always putting in an additive.
I will also install the Pretronix kit under the stock distributor cap.
The stock dimple rods will be used again and i all ready Sold the Used pistons a few weeks back. </div></div>

<span style="font-weight: bold">I wouldnt change any of this. if you have your distributor set up right you wont have any problems.</span>

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: XXXBlackLs6M22</div><div class="ubbcode-body">
Question, Does anyone know what the &quot;DSL&quot; logo means on the Waterpump to Alternator bracket? </div></div>

digital subscriber line

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

Also why does this bracket have a special fitting in it,is it a support hole for the smog pump?

<span style="font-weight: bold">its a bushing, so the alt. belt lines up.</span>

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

Thank you Donnie and Steve for that Info.

Donnie i am sticking to build the motor just like that &quot;quote&quot; i stated but will use the solid lifters though.
Nothing can change my mind about the flat top pistons and lower compression though, last motor i had running in there was a pain in the a@@ with the 11:25 to 1 compression, car would not run right with 94 octane and every fill up for gas i had to mix about 25$ worth of Very High Octane just to get the right gas. I really hated bringing that Cherry can in my trunk and paying $125 for each fill up.
At least with the Original LS6 rebuilt to my tastes i can drive in peace and just go to the gas station to get gas like everyone else. [img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img]

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

Are you going to use roller-tipped rocker arms? I like them myself.

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

Have you looked at using soids with the EDM oiling hole ? Cheap insurance.
Tibor did is own EDM holes, spoiled brat.. [img]<<GRAEMLIN_URL>>/naughty.gif[/img]

Like these
http://www.compcams.com/catalog/COMP...11_278-279.pdf

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

EDM is a great idea. Who did you hire to build the motor?

Quik9r

Re: 1970 Chevelle SS 454 LS6 Rebuild + Details
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: TDW</div><div class="ubbcode-body">Are you going to use roller-tipped rocker arms? I like them myself. </div></div>

Yes

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: m22mike</div><div class="ubbcode-body">Have you looked at using soids with the EDM oiling hole ? Cheap insurance.
Tibor did is own EDM holes, spoiled brat.. [img]<<GRAEMLIN_URL>>/naughty.gif[/img]

Like these
http://www.compcams.com/catalog/COMP...11_278-279.pdf </div></div>

Yes

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: quik9r</div><div class="ubbcode-body">EDM is a great idea. Who did you hire to build the motor?

Quik9r </div></div>

The motor builder is a local guy here in Bolton Ontario, His name is Gus and he has done a lot of motors that are friends of mine and nothing but good has been said about his work [img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img]