489 BBC Build Thread

[Nashville Cat]

I was going to ask that, but studied the pics and since it's been decked, just assumed it'd be 0. It's never 0 across the board, usually 1,2, or even 3 thou down across the deck.
How's your forefingers?

Fingers are doing very well. LOL
It's nice to know I don't need an expensive head gasket to hit the .040" quench number.
Looks like Fel-pro 1027 is recommended because of aluminum heads. But $60 each ?
The standard blue fel-pro gaskets will easily hold 10-1 compression.
I think I'll stick with the $15 no-retorque gaskets.

 

[Shovelrick]

I used the felpro 1027 gasket that Wolfplace and Brodix rec'd but don't remember paying $120 but it was 3 yrs ago

 

[Nashville Cat]

Seems every time I start assembling, I discover another roadblock !
Now my timing chain is for a Gen IV BBC and I need the Gen 6 with step-nose cam type. Ugh !
Ordered this one from Summit :

Summit Racing SUM-G6617R-B Summit Racing™ Billet Steel Timing Sets | Summit Racing

Free Shipping - Summit Racing™ Billet Steel Timing Sets with qualifying orders of $109. Shop Timing Chain and Gear Sets at Summit Racing.

www.summitracing.com

They have raised their "free shipping" threshold to $109 (from $100) so I added an air filter and stuff for the Camaro to save the $15 shipping.

 

[Shovelrick]

Seems every time I start assembling, I discover another roadblock !
Now my timing chain is for a Gen IV BBC and I need the Gen 6 with step-nose cam type. Ugh !
Ordered this one from Summit :

Summit Racing SUM-G6617R-B Summit Racing™ Billet Steel Timing Sets | Summit Racing

Free Shipping - Summit Racing™ Billet Steel Timing Sets with qualifying orders of $109. Shop Timing Chain and Gear Sets at Summit Racing.

www.summitracing.com

View attachment 16635

They have raised their "free shipping" threshold to $109 (from $100) so I added an air filter and stuff for the Camaro to save the $15 shipping.

That looks like the billet set I have that’s a white box TFS but mines for a MKIV and I don’t need it, why not get a Rollmaster with Timken bearing?

 

[Nashville Cat]

That looks like the billet set I have that’s a white box TFS but mines for a MKIV and I don’t need it, why not get a Rollmaster with Timken bearing?

I think it's made by Rollmaster as it has a Torrington thrust bearing .
Rollmasters have really gone up. They are almost $60 higher than the Summit brand.
They look identical so I think they are making the budget one too.

CHEVROLET Rollmaster Performance Products NA-CS2090 Rollmaster Red Series Timing Sets | Summit Racing

Free Shipping - Rollmaster Red Series Timing Sets with qualifying orders of $109. Shop Timing Chain and Gear Sets at Summit Racing.

www.summitracing.com

 

[Shovelrick]

I think it's made by Rollmaster as it has a Torrington thrust bearing . But it's about $30 cheaper.

BillK says the single roll chain is all he uses for the Merc marine engines maybe one of those would be fine. More I thought about mine I wondered if having More roller bearings was a bad idea Oh I also remember Marcus saying he had to make clearance for the retaining screws to bearing retainer?

 

[Nashville Cat]

BillK says the single roll chain is all he uses for the Merc marine engines maybe one of those would be fine. More I thought about mine I wondered if having More roller bearings was a bad idea

I almost did use the stock chain because I have one. It's a little rusty but in ok shape.
I like having the degreed crank gear to advance/retard the cam.

 

[Shovelrick]

I almost did use the stock chain because I have one. It's a little rusty but in ok shape.
I like having the degreed crank gear to advance/retard the cam.

I just edited my response

 

[Nashville Cat]

I just edited my response

Yeah, the price difference is almost $60. I think Rollmaster's are so high that they decided to sell a generic through Summit.
That chain I bought looks just like a Rollmaster.

 

[Nashville Cat]

I also remember Marcus saying he had to make clearance for the retaining screws to bearing retainer?

I think he said button-head screws will clear ? I can get them at Home Depot. (1/4-20 button heads)
Found these pics from Marcus and they are just like you described

Before


After

Gen 6 cam in mk4 bbc

www.chevelles.com

 

[Shovelrick]

I think he said button-head screws will clear ? I can get them at Home Depot. (1/4-20 button heads)

I do think that’s what he said and IIRC I used Torx button head

 

[Shovelrick]

When you check cam end play check those screws too

 

[Shovelrick]

Just seen your pics yep those look like the screws I used

 

[Shovelrick]

And thread Loctite, think I used Blue

 

[Nashville Cat]

And thread Loctite, think I used Blue

I always use blue. Red is for suicidal people who like to use torches

 

[Shovelrick]

I always use blue. Red is for suicidal people who like to use torches

I even have Green edit Cat Farmer nextdoor gave it to me back when we got along, he was a mechanic for the city working on garabage trucks

 

[Nashville Cat]

Received the Summit timing chain and I can almost guarantee it is made by Rollmaster. It's identical in every way.
After a trip to Home Depot to get the cam retainer bolts (button-head screws) , I installed the chain.
Used blue loctite on retaining plate screws. Assembly lube on front and rear of retaining plate.
Also tried to force assembly lube into the bearing on the back of the cam sprocket.
I had a lockplate for the cam sprocket bolts and guess what ? It won't fit a step-nose cam; it's for a standard gen IV cam.
I still need to check cam timing so I can order a lockplate.