Technical Corvette valve covers dont fit

I really appreciate the Tech/Info in this thread, I am learning about this big Block Stuff, slowly but surely.
I am really glad that when I raced I ran a Small block though!

 

Tell you what Fedman, if you ever build a rat motor, and find out just how EASY it is to make truly STUPID power, you just might turn your back on those small-blocks!

 

The big dogs that run these pro stock heads probably wouldn't be caught dead with corvette valve covers. Valve covers for these applications are usually made out of sheet aluminum and TIG welded, and have bullet proof shaft rockers that are way taller for stock style valve covers. Again bolt boss castings don't match up for typical bbc. The idea of some blems that went out, and could not be corrected end up at the swap meet is very likely.

 

I knew I was setting myself up for Rat/Mouse Comments as soon as I posted, especially I thought from F/G! (Thanks Bud!)
I have helped to ***emble some "Rats" but always wore Latex Gloves! you know..... communicable disease and all!
I know that I always Raced at a Cubic Inch disadvantage, but.... build it lighter and with an Aluminum Small Block and good things could happen, I was able to Run a 6.99 with a Very Small, Flat Tappet Camshaft. I will always be happy that we stuck with the Flat Tappet and did not break down, and install a roller. Stupid really.... but that run with the "Baby" Cam is my personal Highlight Accomplishment in my Racing time.
That being said, if I came back to Race again I would ***emble a Big Inch Monster, I might even not wear Latex Gloves this time.
Happy New Year to All!

 

After seeing the photo of the tape measure across the valve cover and looking at the link I posted to the pfd of the dimensions of what it is alleged to be I start wondering if they are a knock off of those covers that someone cast a couple of sets.

 

remember Rick Santos in the 90's?? ****in eh!! But man, I'll tell you, rat motors are SO easy to make power with N/A. I think the BB actually loses some of its edge to the sb when you add a blower to the mix.
Happy New Year to all of you too. I actually kinda forgot it was New Years Eve.

 

Image by Fedman posted Dec 31, 2015 at 8:03 PM

Image by Fedman posted Dec 31, 2015 at 8:04 PM

Rick Santos & Family? Yeah.... Great Memories for sure! I remember them coming to Mission when they were Dominating!
We visited, and shared stories, George, "Father" Santos was holding court in the pits Saturday after qualifying was done... great stories and all of a sudden he says.... I better go and pretend to work on it, or at least check the Valves or something! All the Hemi Guys had them stripped to the Block and Crank and The Santos Family had not even checked the oil yet! He said they get pissed at them if they don't have to work on it! They were #1 Qualifier! They ended up Winning the Race, and after Sundays eliminations were done we set the Cars up for this Photo Op.
They are a first Cl*** Racing Family, and deserve all the Racing accomplishments they have earned!

 

Well, prior to the rule change they DID get a huge weight break, think it was .7 lbs per ci? That's SUBSTANTIAL, and you notice after NHRA took it away, they quit running the SB. Nonetheless, that break was in the rulebook for a long time, and no one else had the gumption to science out the sb combination and take advantage of it. That was a great time for TAD in division 6. Remember the guy that was running the B-1 Mopar combo? What was his name? I'll have to check Draglist.

 

Ohhh how I remember the Santos small block combo. Saw it in action more than once at Woodburn. Not sure who was running the B-1 combo but do recall a rail owned by Gary Turner of GT Bicycles being in the mix in the same era then suddenly dropping out?

 

John and Tiffani Hyland! Wasn't a guy at all! There was another guy with a hard running sb combo from Saskatchewan or Manitoba, shook the tires hard and wadded it up BIG TIME at the WDRS in Ashcroft? I remember the ch***is was a bit dated, quite short with the engine well forward, but the car was fast. This would have been maybe '96?? If you remember, pm me, we don't want to highjack this guys bbc thread anymore than we already have.
Great times. IIRC, he crashed the same year that Allyn Lee set the SS/A record, he had been chasing it all year, and before he could get torn down, Bob Reed RE-SET the mark at a points meet in Baton Rouge the same afternoon!! Man, what a piss-0ff!
And Rick Johnson set the D/SA record in his Nova but couldn't get the cam to check legal. Him and the guy who had bought his '56, name escapes me right now, were in the pits with a 5 gallon bucket full of BBC rockers and a dial indicator, trying to find a rocker short enough on ratio to get it to check legal. See, I just brought this back around on topic, sorta...
Rick Pike! the guy that had Ricks '56 Chevy, not bad for an old guy, eh?

 

Yeah, I think that was basically the end of "Creativity" In the Alcohol Cl***es.
I thought the rules not only changed in the Weight per Cube, but wording or something else basically put any Engine Combo out of business, except for the Chrysler Style Hemi. Interesting that after they parked their Small Block Car, they came back with a New Partner, Jack O'Bannon in the Oakwood Homes sponsered Chrysler powered Dragster and Won 5 Championships between 1997 - 2001.
Racing will never get to go back to those times of creativity, and out of the box creations.

 

Yes, there were multiple changes around 2000/2001 I think??Really killed the cl***. NHRA really did some weird stuff around that time, they had this big idea that drag racing was going to be the hottest thing on television, so they made a bunch of changes, like letting all sorts of formerly illegal combos into Stock and Super Stock, and a whole bunch of REALLY ill-advised, misguided changes. The TV thing never really materialized the way they envisioned it, and the changes turned off all the hard-core guys that really followed the divisional points meets, they really kinda killed the whole deal off.

 

I Apologize to 55Vicky..... Sorry to De-Rail "Your" Thread, I hope you can figure out what the valve Cover Story is. Oh.... Happy New Year to you too!

 

I thought big block Chevies had valve covers shaped like this:

 

If these are not for DRCE heads (I HIGHLY doubt they are), maybe they were for they were for the Big Block Symmetrical Port heads (early 90's Pro Stock). If I recall correctly, Bill Jenkins aided in the production in these. I do not think they used stock valve covers. Can't remember. I had a set many moons ago when I played the nostalgia Pro Stock game. The other heads of the era were 14* Pontiac's. Maybe some Comp Eliminator/Stock/Super Stock guys were trying to slip one by? There I am thinking like a cl*** racer again.....

Enough BBC Head trivia. I am interested to know if these are blems, f@#k up's, or designed for something else.

 

Yes, me too. When we start reminiscing, things get out of hand fast.

 

99% sure all the spread port heads had the 4 and 4 valve cover bolt pattern. Jenkins was involved with the Dart Merlins. I ran a set, honestly didn't think they were notably better than the ported iron 990's.

 

Or Warren Johnson.

 

WJ was an Olds man to the very end.

 

Why would they have the brake booster indentation if they were for an aftermarket head ?

 

They are not intended for aftermarket heads, just the restoration corvette nuts.http://www.yourcovers.com/valve_covers_9096.php

 

I'll be honest, I'm not buying any of the "racer" stuff, these aren't valve covers that any racer would use. They are not tall enough, too heavy, and they have "Corvette" on them. I used the old "Kid Presto" plastic ones, featherlight, sealed good, plenty of clearance for a stud girdle. I realize all the really high-end guys use shaft mounts now, but these just aren't racer parts.

 

Looked at the covers on the PML site, look at the pics and where the holes are drilled on there seconds but correctly drilled display covers, definetely closer inwards....yours are drilled more outwards...Machinest blunder???

 

And now since I read that they are cast. I"m sure that they are Knock off's gone bad. Like has been said get a gasket for any BB and put it lay it on the cover. There is no mystery here as far as I'm concerned.

Pat

 

agreed, I have never seen a high dollar engine in the pits with stock styled script covers, normally sheet and tig stuff. and also as mentioned, these dont look deep enough to cover high end valve train goodies, I vote these are street rod styled blemishes from the "maker" Big Duece mentioned.

 

Kadillackid, good eye. If they were mine, I would TIG the holes shut, machine the area smooth, and use these screw in transfer punches to transfer bolt holes from YOUR heads to your covers. Drill, and repolish.

 

Almost looks like the bolt holes are drilled offset for god knows what reason? Do the flanges line up with the head flanges even though the bolt holes don't line up?

 

Big deuce went where I was headed. Nice, even a pic of the tools.

 

Hell, I'd probably just use a gasket and a ***** punch. But yes, you get the idea, and for what you have into them, its probably worthwhile.