bracket to stocker
 

I m looking for some help and input. Im turning my bracket car which is a 77 buick skylark with bbc, powerglide, 12 bolt into a stocker. My car came with many engine options but were can I find out which combinations it had? I know it came with a chevy 305 but im not sure on specs. What are rules on engine casting # and head casting #? The nhra classification is really confusing. Id like to know what motor I can run, carb, transmission, rear end. How do I find this out? Im new to this so any help would be great.

Re: bracket to stocker
 

First thing you'll want to do is go here and sign up :http://www.classracerinfo.com/

Then come back here with your specific questions.

12 bolt at the original width would be legal.
Any GM 3 speed automatic that bolts to engine used, would be legal.

Re: bracket to stocker
 

Best tip is to buy Tim Lowe's Buick stocker...see classified section (assuming he still has it) Super fast car and you'll invest that much to even get close to where Tim's car is. See link...


http://classracer.com/classforum/showthread.php?t=59526

Re: bracket to stocker
 

I have tons of parts sine my whole family races. I want the pride and accomplishment of building my own. Chassis wise the car is close just needing engine combo info

Re: bracket to stocker
 

This is a perfect example from another thread.
Where a Buick 455 or 400 or 350 from another year would bolt in.
And fit into existing classification guide.

Re: bracket to stocker
 

I want to run the chevy 305. What block casting? What heads what carb?

Re: bracket to stocker
 

What horsepower? what carb?

Re: bracket to stocker
 

that's what I'm trying to figure out.I have a 1977 buick skylark race car with no motor no transmission that I want to stock eliminator race.I need to find out what came in the car and what components I can and can't use

Re: bracket to stocker
 

I gave you the link already.

Re: bracket to stocker
 

Looks like the 305 is nhra rated at 180hp and would be a natural R/SA

P. Disp. C.R. Ind. Make Model/Transmission Manifold R.R. Lifter Head cc Notes
105 231 9.25 1-2 Roch 17057145,447/SM 1254143 1.53 H 42.70 1,4 Odd Fire
105 231 9.25 1-2 Roch 17057145,447/SM 1257119 1.53 H 42.70 1,7 Even Fire
135 301 9.52 1-2 Roch 7057173,7057172 526213 1.50 H 69.90 3
140 350 9.61 1-2 Roch 7056140,7056143 1249167 1.55 H 50.00 4
145 305 9.24 1-2 Roch 17057107,17057111 346260 1.50 H 59.10 8
155 350 9.61 1-4 Roch 17056246,17056546 1249169 1.55 H 50.00 5
170 350 9.06 1-4 Roch 17057250,3,5,6,8,550,3 411990 1.60 H 66.35 5
170 350 10.21 1-4 Roch 17057202,502 346249 1.50 H 63.35 6
185 403 9.18 1-4 Roch 17057250,2,3,5,6,7,8,550 411990 1.60 H 71.69 5

1 Alt carb - 17057143,148,448/Auto
3 Carb sizes - 1375/1218
4 Carb sizes - 1686/1250
5 Carb sizes - 1375x2250/1218xAV
6 Carb sizes - 1375x2250/1093xAV
7 Carb sizes – 1437/1093
8 Carb sizes – 1686/1186

Re: bracket to stocker
 

The 305 2V at 180 is a pretty good deal. It's a natural R car that can make T.
I would however think about calling it a 76 and using either one of the 350 Buick motors. The 2V is at 205 and the 4V is at 230.

Re: bracket to stocker
 

Bro, You are showing the OP some engines that weren't available in the Skylark.
He's gonna be even more confused.
No 350 4V Chevy till 79. Too high (287) for an entry level deal ..in my opinion.

Re: bracket to stocker
 

Ok thanks for the link. 145hp 305 2bbl

Re: bracket to stocker
 

can I use any 305 block?

Re: bracket to stocker
 

I have been told that the block isn't as important as the heads. If the bore, stroke and deck height are correct, casting numbers aren't important.

Dale

Re: bracket to stocker
 

Thank you this is all very helpful. I was hoping it came with a 4bbl carb but seems they didnt. Whats a good 2bbl carb that works?

Re: bracket to stocker
 

There's no listed replacement for that 2bbl on the NHRA Accepted Replacement Stock and Super Stock Carb List. I think you need to run the stock original for the 305/145.

The 350 had a 4bbl but it never made it into the Skylark or Skyhawk. You could build that engine in the Skylark if you ran Super Stock GT.

Dale

Re: bracket to stocker
 

I understand wanting to build your own car, I am in the process of finishing my 1965 BBC Impala (it is on the Race car build section of forum)

One thing I did was go to NHRA Points Meet, National Event, Stock/Super Stock combo races and just look at other cars and talk to people. I crawled around a bunch of cars.

Not too sure where you live but IHRA has a Stock/GT class where you can run that BBC if it was built into a Stock Eliminator motor, keep tranny and rear end too.

Good Luck and post into the Race car build section.

Will Lamprecht 65 Impala I/SA 396/325

Re: bracket to stocker
 

Been mentioned already...1979

http://www.classracerinfo.com/CGPage...9&MAKE=Skylark

Re: bracket to stocker
 

The 350/170hp 10,20cr. looks like a good combo. same size carb as the 403 motor. In less I'm missing something what class what that fall into ?

Re: bracket to stocker
 

You are, Ken.
The 350 10.2 is a Chevy motor. Number 6 is for the 1.09 venturi, 750 carb.

Again, not available in the Skylark until 1979.

The specs you are looking at in this thread are pulled from the NHRA tech site, where ALL the engines used by Buick , in ALL body styles, are listed together.
Go to Dwight's site and use that .He's already sorted them all out for you.

The 350, 9 to 1 listing is a Buick engine. It uses the 1.21 v, 800 carb.

Re: bracket to stocker
 

Doesn't anybody know how to use the Classification Guide??????

Look at the combo in the classification guide, look at the blueprint specs...That will tell what class you would run by the weight breaks and what the engine are for a 1977 Skylark

These are the only engines available in a 1977 Skylark according to the NHRA........


231..V6..Buick....301..Pont..........305..Chev


Factory HP
105hp............135hp..................145hp

NHRA HP Stock
130................155.......................180

NHRA HP SS
140................180.......................190

Re: bracket to stocker
 

http://www.classracerinfo.com/CGPage...7&MAKE=Skyhawk


Locate the car model-body in the left column, find the engine along the top. Where row and column intersect is the power to weight factor. Click on that number when it turns yellow and it will return the classes, weights, indexes that the car fits. A button at the bottom of the page will take you to the engine blueprint specs including all the legal pistons, rods, oil pans, cranks, blocks, etc. Some cylinder head listings may have some flow data available.


Merry Christmas!

Re: bracket to stocker
 

Now the next problem, how am I going to make a 2bbl 305 run low 13s in a 3200# car

Re: bracket to stocker
 

To me...that is the fun of it

you have to go over every part on the car looking for an improvement

Re: bracket to stocker
 

So engine wise what are some things you can get away with? By no means are these motors stock. Lots of rpms? Perfectly balanced rotating assemblies? What are some tricks that you are willing to share?

Re: bracket to stocker
 

Patience and Money. You will likely have to spend a lot of both.

Seriously, if you want to do the engine yourself, you need to find some local racers and or a machine shop that has experience with stocker engines. Making power that passes tech takes a lot of trial and error. There is not really one magic thing. Everything has to be as good as it can be. Of course, start by picking a viable combo.

If you pick a V6 combo vs a 305 for example, they want different things.

I would say to research the rule book and the classification guides. See what classes the combos fit in. Order stats from Nitro Joe and see how others in those classes run.

You probably don't know enough about it to even ask the right questions yet. The more base understanding you have the better. ( before you choose).

If there are local association races or you have local class racers near you, get to know them. Have them show you their cars. I think that will help get you started.

Re: bracket to stocker
 

One of the big things for you to remember, if you're going to run the 350/2V combo, will be to keep everything in harmony. You will be building a severely restricted combo. You're going to have to choose your cam very carefully. You can't afford to leave a few too many cc's in the heads, or a few thousandths too much deck clearance in it. Go to somebody that knows what it takes to build a set of "Stocker" cylinder heads. Don't put a 7500RPM cam in a 6000-6500RPM motor. Find every Rochester 2V that is the correct size for a 305 that you can and find somebody who knows how to use a flowbench.
THAT should get you started!