Who was the first 10 sec. stick Stocker and

bsa633 · 01-19-2010, 01:50 PM

Quote:

Originally Posted by Chuck Norton

There were a few differences. I don't remember all of them but I'm sure that someone does. Among the ones that I recall:

1. Tires - 7" in 1971 v. 9" in 1978
2. Pistons - Unrestricted on weight and valve relief in 1971 v. factory piston in 1978
3. Allowable overbore - .060 in 1971 v. .030? in 1978 (things were changing pretty fast in '78. I'm not sure on the overbore rule at that point in time.

What else am I forgetting?

What about weight brakes and cars that were allowed..
unrestricted on valve relief? in that case what about cams?

Chuck Norton · 01-19-2010, 02:34 PM

I believe that the camshaft rules would have been roughly the same for a Stocker in 1971 as in 1978. Stock lift, duration, and overlap specs were enforced in both instances.

The piston in 1971 would have been required to have only the reliefs placed where they were needed for valve/piston clearance and they would have been no deeper than required for actual valve clearance. In 1978 the piston top would have been required to conform to the factory configuration.

I don't have a '71 Rulebook and I don't know what horsepower ratings were established in either instance. The Corvette appears to me to have been a '66 while Jim's car was a '67 Fairlane, I believe. The Corvette (if it was a '66) would have been a 427 with a single Holley. Jim's car might have been either a single or dual quad motor. It seems to me that he ran it both ways at various times but most commonly with a single carburetor.

bsa633 · 01-19-2010, 03:38 PM

Thanks Chuck

Quote:

Originally Posted by Chuck Norton

The Corvette (if it was a '66) would have been a 427 with a single Holley.

see that it has a 7.49 factor at 425hp, and would have been exluded until AA come along..Just trying to establish why no 10 runs seem to be made between 71 and 78..
...7 inch tires and stock duration cam..thats impressive!
Cya in 3 weeks!

Rich Biebel · 01-19-2010, 07:24 PM

Old stock vs new stock...........A cars minimum weight was the shipping weight back in the old days. No driver weight was accounted for. You were allowed 5 gals of gas and if you were light you could add a spare.
If you had a driver that was light, you had an edge.

Pistons......rings could be moved up and you could run any rings. Forgedtrues were pretty popular......

Valve springs had to check at stock pressures and we usually killed them if a shift was missed.

We ran GK and Lunati cams that had stock lift and duration....

7" tires and they were checked for width. As they grew you had to cut them or use a cheese grater.

M&H's were usually on stick cars and when Firestone came out with their "gumby" tires a lot of automatics used those......They were very soft and the hot rubbber from a new "trick" technique known as a stationary burnout.....burned the heck out of my ankles as I held the car.......

X-TECH MAN · 01-20-2010, 06:19 AM

Quote:

Originally Posted by bsa633

Thanks Chuck

see that it has a 7.49 factor at 425hp, and would have been exluded until AA come along..Just trying to establish why no 10 runs seem to be made between 71 and 78..
...7 inch tires and stock duration cam..thats impressive!
Cya in 3 weeks!

1971 would have been the last year for the 7 inch tire deal and aftermarket pistons, deep oil pans, etc. . The "NEW" stock eliminator began in 72. I think it was 74 or 75 brfore they were allowed headers again and real 9 inch slicks instead of those DOT slicks.

01-19-2010, 02:34 PM	#2
Chuck Norton Member Join Date: Dec 2001 Location: Covina, CA Posts: 474 Likes: 106 Liked 89 Times in 19 Posts	Re: Who was the first 10 sec. stick Stocker and I believe that the camshaft rules would have been roughly the same for a Stocker in 1971 as in 1978. Stock lift, duration, and overlap specs were enforced in both instances. The piston in 1971 would have been required to have only the reliefs placed where they were needed for valve/piston clearance and they would have been no deeper than required for actual valve clearance. In 1978 the piston top would have been required to conform to the factory configuration. I don't have a '71 Rulebook and I don't know what horsepower ratings were established in either instance. The Corvette appears to me to have been a '66 while Jim's car was a '67 Fairlane, I believe. The Corvette (if it was a '66) would have been a 427 with a single Holley. Jim's car might have been either a single or dual quad motor. It seems to me that he ran it both ways at various times but most commonly with a single carburetor.

01-19-2010, 07:24 PM	#4
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,314 Likes: 25 Liked 544 Times in 213 Posts	Re: Who was the first 10 sec. stick Stocker and Old stock vs new stock...........A cars minimum weight was the shipping weight back in the old days. No driver weight was accounted for. You were allowed 5 gals of gas and if you were light you could add a spare. If you had a driver that was light, you had an edge. Pistons......rings could be moved up and you could run any rings. Forgedtrues were pretty popular...... Valve springs had to check at stock pressures and we usually killed them if a shift was missed. We ran GK and Lunati cams that had stock lift and duration.... 7" tires and they were checked for width. As they grew you had to cut them or use a cheese grater. M&H's were usually on stick cars and when Firestone came out with their "gumby" tires a lot of automatics used those......They were very soft and the hot rubbber from a new "trick" technique known as a stationary burnout.....burned the heck out of my ankles as I held the car....... __________________ Rich Biebel S/C 1479 Stock 147R Last edited by Rich Biebel; 01-19-2010 at 07:29 PM.