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It only means that to those who don't know any better. Still don't believe me?

E mail Dan Jensen and ask him. Dan is the ORGANIZER of the "pure stock drags," so he's the best authority on this...

"Stock" in the "pure stock drags" means MODIFIED per the rules of the pure stock drags, which invoke NHRA tech bulletins (i.e. blueprinting specs). It doesn't mean "stock like was when it was new."...

That's the L71. It made about 340 SAE NET ("as installed") HP, which puts it on the same level as the earlier ('97 - '99) LS1 Corvette engines.

Here's an actual engine dyno test of a ZL1, which...

How do you know it was "stock?"

The "pure stock drags" permit a HOST of engine modifications. I just showed you an example of a 1971 Lemans that's owned and raced in the "pure stock drags" by the...

The hottest tri carb engine was the L71; it became the L89 with aluminum heads.

The L88 was 4 barrel only.

The L88 was "for off road use only" according to GM literature. It made ~ 35 more HP...

L-88s ran mid thirteens when they were brand new - and with 9" slicks in place (see vintage HOT ROD test elsewhere in this thread).

They don't tear down the engine in "the pure stock drags" unless...

Here's a real 10 second/129 MPH Corvette - bone stock with the exception of drag radials.

Cars like that are being built today and many "muscle car people" choose to look the other way.
...

I think that's the point.:)

More than 4 decades have passed since most of the muscle car engines were originally designed. Some went pretty good in their day. Time has since moved on.

Many...

OK, then.

Let's see what a carb'd 346 cid LS1 will do with nothing more than a mild (.525" lift GMPP) cam swap, stiffer LS6 valve springs and open long tubes:
...

The L-78 dyno test (above) was performed on an engine dyno.

The GTO dyno test I referred to was performed on a chassis dyno.

Here's a "truly" stock 426 Hemi, which truly was "the king" - in its...

Hopefully the "375 HP" L-89 made more power than this "350 HP" L-78 (actually a 402), which I obtained from an old dyno test article (quite rare for the time).

288 HP - with open exhaust...

I posted the link to the F.A.S.T. (and "Pure Stock") rules in my first response way back in July:

http://www.ultimatecarpage.com/forum/showpost.php?p=569809&postcount=12

"Off a bit?" You...

What's "pretty funny" is that you thought (still think?) that a truly "completely stock", 37 year old Corvette could run ten second/127 MPH quarter miles.;)

It's also "pretty funny" that you chose...

Sonny,

Dan Jensen (contact information provided below) is an organizer of and a competitor in the "Pure Stock" drags. He's considered the guru on this subject in many circles and is a straight...

I'm repeating my response to his post (see below) in order to set the record straight. EVERYTHING he wrote was flat out wrong. As a mechanical engineer and auto enthusiast, I get pissed off when...

I came across this nonsense while surfing the net and simply had to respond:

First of all, an L-88 is NOT an aluminum block. The aluminum block 427 was the ZL1 and Chevy made a total of 2...