1970 Chevelle SS 454 LS6 Rebuild + Details

[XXXGoldL34M20]

Guys thank you for all your suggestions,opinions and comments on the engine.
I will definetly run this thread by my engine builder and see what direction i will go with when the engine rebuild starts in a week or so.
I will let everyone know what parts i will go with later on in this thread.

Next is the Transmission.
I was thinking on using a Center Force Clutch package for my M22 with 11" Clutch and 26 Tooth spline.
The one i took out of the car has no identification as to what company the Clutch package was but it did run well.
What are you guys running for your M22 as far as the Clutch assembly goes. I will be going with a new Clutch/Pressure plate/pilot bearing and bushing as it makes sence to have a new unit go along with a rebuilt Motor.
Here are photos of the trans etc...

[XXXGoldL34M20]

one more photo.
Note :: The transmission has the original Muncie shifter and rods.
Yes i know it sucks but it's there and i will leave it alone.
The Hurst assembly is a much better shifter but i kind of got used to the old Muncie and it is nice to have it original. [img]<<GRAEMLIN_URL>>/smile.gif[/img]

[CDNL-78]

Hello Danny

My L-78, other then .30 over pistons, has the original compression, and I put in the crane cam, that is the same as factory spec. This would be the same came for the LS6. I love this stick. You can't beat the sound of a solid lifter cam either. After break in this spring, I put about 500 miles on the nova, and re-set them. All was good when I parked it with about 1000 miles of driving this year.
The gas I run locally is 94 octane. I prefer Mohawk gas, I`m not sure if you have them over your way. The timing is where it needs to be, and doesn`t detonate. I`m not sure what the timing is set at, sorry.
Your car, do what you feel is correct for your driving pleasure. I just want to tell you I haven`t had any issues with the compression, and solid lifter stick with local gas. Keep us posted on your final decissions.
[img]<<GRAEMLIN_URL>>/beers.gif[/img]

[Survivor 69/Z28]

This is such a great post to follow. Thanks for posting all of these great pictures of the progress!! The Pertronix works like a champ. I also agree with your reasoning behind dropping the compression a tad and driving this thing. I respect the purist with all of the engine internals being at spec etc... But it’s so easy to get big HP on a bone stock appearing BB without the ultra high compression these days.

[XXXGoldL34M20]

WOW &quot;Survivor 69/Z28&quot;
i just clicked on your links in your signature,
Your LS5 Chevelle is also triple black like mine, Nice car!!!
Your Z-28 is a beauty too.

Darcy thanks for your post about the specs on your L78 Nova.

Today i did talk to my Motor Rebuilder and discussed what was said here. We are making some changes [img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img]
We will be gunning for more compression at a tad under 11:1 we will be shopping to get pistons that will deliver about 10.5 to 10.9 compression at .30 over for the bore.
So far i will be going with the Lunati #20202 Solid cam stick (i had this cam running my other LS6 motor and it was Awesome).
The Lifters i will use is the Howards 91118 EDM Solid Lifters.
I will give more details as i go along but that is it for now as i have a lot more parts to pick and choose. My rebuilder also assured me that when he is done with the motor it will easily pull about 500 to 550 HP [img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img] To me that is more than enough for the street.

[XXXGoldL34M20]

Today i routed my TCS vacum lines and i had to make the top pipe from scratch as it was missing for some reason.
I had plenty of pipe and hoses kicking around so i made it myself.
I think it came out rather well.
Below are photos just incase someone else has to do this for there car. It sure is a lot of small parts to hook up.
Also included photos of the other cool stuff that hooks up to the fuel lines etc...
I pre fitted everything today to make sure its all good.

[XXXGoldL34M20]

Ran out of room for the photo of the NOS fuel pump.
Here it is along with other small stuff.
Does anyone know what the number is on the engine lift?
A few of my numbers are to pitted to read properly.

[Mr70]

Nice parts/pics..those aren't LS-6 specific engine lift bkts.,as all 1970 Big Blocks used them.

[XXXGoldL34M20]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mr70</div><div class="ubbcode-body">Nice parts/pics..those aren't LS-6 specific engine lift bkts.,as all 1970 Big Blocks used them. </div></div>

Thanks Rick,
I figured out the part number for the front lift which is 3969829 [img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img]
These would be used for all the Big Block Motors like you said.

[MosportGreen66]

Good detail shots! Send the bellhousing to Jerry MacNeish and having him reskin it. Shoot it half orange with a dusting of overspray onto the other half.

The 660 thermostat with #s on the base of the unit is for a pre 1968 Hi-Po Chevy. Your #s should be on the neck on the thermostat. I have a late one if you'd like to trade?

Dan