TCracingCA

You can get a small block 327/350 into the mid to higher 12's to about 110mph roughly with a very sharp tune (adding advance), definitely need bigger headers (3-1/2 to 4 inch collectors, and a decent big tire or slicks!

To get to the 11 seconds to over 110mph roughly, you have to have some serious head porting!

PS Billfish? Are those as good to eat as Swordfish? Making me hungry!

MarkC

Mike, yes there are plenty of fishing forums to include offshore. If you are really interested try Tidalfish Forums.

Mike, I did not answer your question because of your condescending attitude. I'll be one of the first to admit you know your stuff when it comes to corvettes. I am in my late sixties and I don't like be treated like kid. I made this post to learn from you guys that have far more offer. So, Mr. Mike, I am done with you.

MikeM

You'll have to ask Mark C. He is the one that raised this issue. Headers , head porting and big slicks have nothing to do with his question. Stay on topic please.

An OEM stock L-79 won't get in the 12's in the 1/4 if you dropped it off a cliff, let alone the 11's.

MikeM

Fair enough, I am a decade older than you and I quit getting my panties in a wad when I was a kid.

You sounded to me like you wanted to teach, not learn, So my response.

TCracingCA

but the one member posted up a Corvette with an LT-1 and turning 117mph in the quarter. Thus that is how it is generally done as added! No harm in adding to any tread. I will bet he will confirm some of those mods as the cause of that usual handling characteristic "lifting the front wheels". I can see that being perceived as a serious breach or flaw of Corvette setup by the Stock Corvette crowd!

But Mike, the forum has official Moderators and then we have you the Self Appointed Moderator! Thank you! We won't nominate you for the position, but we know you are lingering and watching out!!!

MikeM

How did you get "thus" stuck in your vocabulary? You use it like, "I'm like". And you dropped bu for just a minute?

PLease try to stay on topic.

Donny Brass

this thread is funny.

MikeM

Beats me why anyone would take it seriously?

Donny Brass

so, then, why the clown show ?

MikeM

Why don't you ask yer buddy. He would leave everyone to believe your car is stock as a stove. And that's not the way it is. Is it?

Don't know about the clown part, just tell it like it really is and be done with it.

Donny Brass

it's .030 over, it have been balanced and blue printed, it runs a little more than 11:1 compression.

stock crank
stock rods
heavier than stock pistons
rings with gaps
stock, untouched heads
GM 151 cam

It makes less than 300 RWHP......... it's a modified monster.

MikeM

What is more important than what you said is what you didn't say. You have this Mark C guy believing (or so it would seem) that every L 79 nCorvette that left St. Louis will run that fast. You and I and many others know that is absolutely false.

A stock L 79 with a 4.56 gear as it left the factory would be lucky to even get in the 13's. Not even sure if you could get a 4.56 with that engine. You sure couldn't get the tires you have. Like I said(asked) that car runs about 6-7 mph faster than a stocker. Where do you think that extra power came from? A stock setup? Splain that for me lucy.

Donny Brass

I am still waiting to see where the extra power is................. 300 rwhp is not setting the world on fire.

you seem to think because a couple of long haired rag writer coaxed a high 14 out of one of these cars between cheeseburgers and a smoke, that it is gospel.

Oh, and since when could you not buy a bias ply tire in the sixties ??????

TCracingCA

After a quick review even though it doesn't look like anyone is talking about me, I'll just feel insulted by future posts to come!!!

The L-79 is just a little less tuned and slightly less parts capable than the solid lifter cars. It is a great running motor. But all of the factory tunes were meant to give the Owner an acceptable running engine, with some economy etc..

Thus the Hot Rod, Car Life (less so, they liked to test dirt stock alot), Car Craft, Drag Racing etc.. guys would instantly start changing settings for the tune! All of the big boys (Yenko's, Bergers, Dana's, Bill Thomas, Etc.) did the same, changed stuff for the performance.

Thus getting the L-79 into the 12's with the list of specs Donny has is solid good old fashion tuning and testing etc. and not everyone can do that! But it is a perfect example of a small block into the 12's! So imagine how much easier it would be if you duplicated one of the well published builds where they worked thru the progress of changes to get the results that they attained. And a car with Headers and especially ported heads does and attains superior times far easier. The really good small block builders and tuners are getting into the 9's in these modern times. But putting a small block into the 11's is not easy, unless you know what you are doing, and it takes some development that alot can't obtain! Most just can't tune!

PS oh moderator, moderator (Mike) where are you?, come check and edit my post please! I think I am done! Where are you?

larrywalk

At the risk of being off topic, the engine build is limited by the NCCC 2B rule book - NO ported heads, strict stroke, .070 over bore max, and there are rules on which parts can be removed; race weight with driver was 3211 lb. Can update/backdate C2 and C3 CORVETTE engine parts and transmissions; used blueprinted 461X heads with 2.02/1.60 valves; 4.11 gears with a TH350 trans. There is a post-record engine tear-down/engine inspection too.

For some reading, Chapter 2 and 3 of the NCCC Competition Rule book apply: https://93075438.domainhost.com/Hand...2013-2014.html

A video of that record run is listed on my CF User page.

MarkC

Thanks Larry, I checked your user page, Semper FI.

Donny, sorry you got dragged into this.

MikeM

The allegation/implication was that a factory stock L-79 engine was more powerful than a 365/375 engine in stock condition and would run faster/quicker ET's and trap speeds.

That is simply not true and don't change the subject!

"57 Chevys off the showroom floor would probably road test in the high 16's, mid 90's in the quarter. NHRA stocker, last I heard was deep in the 12's. Still "stock" according to their rules.

Compare apples to apples.

MikeM

I didn't bring up the long haired writers but best I remember, we all had short hair back then.

I know how these cars ran off the showroom floor 'cause I was around back then and I didn't need to read the magzines.

Not taking anything away from you or your car. It runs good for whatever subtle mods you've done to it. I have had an L 79/L84 both in a Chevy II since 1966 so I have a pretty fair idea of what they'll do and what they won't do.

ChattanoogaJSB

I'm just a kid to most of you guys, and since I know it I'll sit back and

Kerrmudgeon

Sounds like there's more curmudgeons around here than just me!

On topic: Myself, I think the ability of the driver would be the deciding factor between the two. I prefer the lighter feel and ride of a C2 over a C3 all day long.