lol man you could have saved a ton of money

There were no 750 thermoquads. The factory generally used 800s on SBs and 850s on BB. There were some aftermarket ones up to 1000 CFM

Thanks for correcting on that.

Keep in mind that a ss gt 318 is a short stroke big bore to make 318 ci.

Never thought of that Vance. Excellent point!

On the Edelbrock heads...I forgot that the person I got the heads from also included a set of valves ( I think Ferrea) anyway,they are the small 318 valves. He was going to build a GT combo,but gave up on it,said he'd have too much in the heads.The seats are for 2.02 valves. No problem as I have a set of stainless 2.02 valves and exhaust valves too.

Those SS/GT motors are pretty high maintenance too. A friend runs one...pistons w/ only one compression ring. Requires freshen ups every 50-60 passes. His "factory unported" cast iron heads cost over $7,000 a set.
7" torque converters, not to mention a trick Quadrajet.
Comparing a typical low maintenance bracket motor to what these SS/GT motors run, well, it's just not a good comparison.

I have a 318 in my car. Times in my signature.

I think with more gear( run street friendly 4.10) a single plane intake ( knockoff dual plane currently), roller cam( currently a 231@50 hydraulic in it) more compression(10.5) good set of headers(99 dollar cheapies on it)
And removing the power steering, factory water pump and fan, what I have with those mods would go at least 11.20's without much of a sweat.
The heads are ported magnum RT units. Edelbrock magnums ported would I am sure make more power and save some weight.
I can see getting in the 10's pretty easily with the right parts. I am shifting at 6200 and trapping at 5900, not optimal.
This all said, this motor was built and screwed together with excellent machining and thought, that is definitely worth something.

Another example of a good build. I still think 10.90's are easily done,probably a stretch if I wanted to go 10.50-10.70..but if you dont aim high,you'll never get anywhere.

No, stroke is only allowed to be +/- .015" from stock, and bore is allowed to be no more than .080" over stock.

So a 318 is really a 340

Bw,s combo is running nice. While he did manage a 11.79, its other et,s were more closer to a 12 sec. combo IMO. Dumping the WP/fan/ps pump wont gain the .6 in ET imo, more like .25 maybe.

Going from a 12 sec, combo to a 10.50 wont be nearly as easy. Don't let BW,s 231@ .050 fool you, its pushing .600 lift. Hes got a decent vert to back it up too.

I will say, it wouldn't be a bad thing to Follow BW,s build and combo to do what you want to do though.

329, the good rings stop at 3.970", the 340's end up around 352. As the years go by the max overbore allowed has increased to extend block life.

In 1995 Mopar Tech published an article on a 273 ci Dart called "Darn Dart", it ran a best at the time of 10.86, running OEM block & crank, 11.5.1 compression, iron 340 X heads, single 4 bbl carby, .508 hydraulic cam, 5.50 gears dodge 8-3/4, weight 3,000 lbs, 345 HP

Some things wrong with some of the above numbers. Most HP calculators will put 3000# and 345 HP around a 12.5 + ET

Can you make a 318 run 10.60? Yes is it cheap? No you have to have the right parts in the right place it can be done and has been done there are at least 5 or 6 super stock cars right now that can prove it but most of the replies about parts are way off wrong intake wrong size headers a 2 ring piston is 20 year old technology if you really want to know talk to somebody doing it super stock cars have nothing in common with bracket cars

Bingo. And there you have it

Right.
But going to a roller, more compression and gear, along with a head upgrade would make a big difference. Car has a flat hood too. That doesn't help.
The cam in it now isn't the engine masters 247/247 solid. It's a hydraulic, and much smaller duration wise.

About time you chimed in I was feeling all alone trying to explain it.If it was easy and cheap everyone could/would do it.

Dunno Sport440, maybe he had a good tail wind that day, like a Hurricane, lol

the main thing people don't realize in super stock you cannot raise compression or change stroke mas a matter of fact when you put valve reliefs in the piston your compression is actually less for a 318 compression is in the 8.7 range stroke is + or - .015 you don't have a lot to work with every thing is set at factory specs so unlike most racing you cannot just bolt on a new set of heads or raise compression I will not give specifics on an open forum very proprietory information