Stocker Head Rule Change????

X-TECH MAN · 11-20-2008, 04:52 PM

The change from stock to super stock was in 1972......The bogus head and intake stuff really didnt take off until the stock rule was changed in 1985 to allow any duration, overlap, and valve spring pressure. Without those changes the acid etching and porting being done then was not as effective.

davebw31 · 11-21-2008, 01:13 PM

Ah, I stand corrected. My memory is not was good since I am now 64 yrs old ! LOL

But wasn't the rules change for stock for the 1973 racing season, but was mandated by NHRA late 72'? I remember running my factory backed 72' Olds M/Stocker in 72' under the old rules for stock.

X-TECH MAN · 11-21-2008, 05:38 PM

Im 62 and I ran a '69 Corvette in the old stock elim. with 7 inch tires in '70,and '71. I HAD to change to S/S in 1972 since the stock rules required an almost "REAL" stock car as produced except for blueprinting the engine, no bogus stuff and as built right off the show room floor with OEM exhaust manifolds, real DOT tires (not curent DOT slicks with tread), real stock cams (no rate of lift type), etc. In '73 they expanded the weight breaks and some of the guys started to "PUSH" the rules (Buicks from Calif.) and a few others so as the time went on the rules allowed more and more until they were almost like Jr. stockers from before with 9" slicks and nothing older than 1960 as today. Remember the C/SA battles of the S/S magazine 6 pack, the Calif. Buicks, and a couple of 428 mustangs? The rest as they say is HISTORY.

11-20-2008, 04:52 PM	#1
X-TECH MAN Banned Join Date: Dec 2007 Location: Lake Placid, Florida Posts: 3,203 Likes: 1,047 Liked 235 Times in 110 Posts	Re: Stocker Head Rule Change???? The change from stock to super stock was in 1972......The bogus head and intake stuff really didnt take off until the stock rule was changed in 1985 to allow any duration, overlap, and valve spring pressure. Without those changes the acid etching and porting being done then was not as effective.

11-21-2008, 01:13 PM	#2
davebw31 Junior Member Join Date: Nov 2008 Posts: 21 Likes: 0 Liked 0 Times in 0 Posts	Re: Stocker Head Rule Change???? Ah, I stand corrected. My memory is not was good since I am now 64 yrs old ! LOL But wasn't the rules change for stock for the 1973 racing season, but was mandated by NHRA late 72'? I remember running my factory backed 72' Olds M/Stocker in 72' under the old rules for stock.

11-21-2008, 05:38 PM	#3
X-TECH MAN Banned Join Date: Dec 2007 Location: Lake Placid, Florida Posts: 3,203 Likes: 1,047 Liked 235 Times in 110 Posts	Re: Stocker Head Rule Change???? Im 62 and I ran a '69 Corvette in the old stock elim. with 7 inch tires in '70,and '71. I HAD to change to S/S in 1972 since the stock rules required an almost "REAL" stock car as produced except for blueprinting the engine, no bogus stuff and as built right off the show room floor with OEM exhaust manifolds, real DOT tires (not curent DOT slicks with tread), real stock cams (no rate of lift type), etc. In '73 they expanded the weight breaks and some of the guys started to "PUSH" the rules (Buicks from Calif.) and a few others so as the time went on the rules allowed more and more until they were almost like Jr. stockers from before with 9" slicks and nothing older than 1960 as today. Remember the C/SA battles of the S/S magazine 6 pack, the Calif. Buicks, and a couple of 428 mustangs? The rest as they say is HISTORY.

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