ZL1 stocker

RJ · 02-02-2009, 08:48 PM

xxxxx

Alan Roehrich · 02-02-2009, 09:50 PM

There are a couple in the works (iron block cars), and one aluminum block car ran Pomona last year but broke (he's a member of this board). We have one (aluminum block) but we're not rushing anything.

dahkahuna · 02-03-2009, 01:40 AM

Much like the Zl-1 Corvettes, yes there are at least 2 ZL-1 Camaros running. My Camaro started with the Aluminum block, but I broke a rod at the 2008 Winternationals. I am now entered at the 2009 Winternationals but have went to a iron block temporarily till I figure a few more things out with combo, because there ain't many people who know much about what this combo wants. It's all trial and error for me, but I am commited to get it figured out. I still feel the H.P. factor is to high an A/SA carrys 3730 lbs which makes it not 60 foot very well. I now have everything in place to move to AA/SA 3508 lbs after Pomona, and then we'll see if I'm on the right track. Many people think that the Aluminum block won't make the power that the iron block will of course not many will spend $4600. to find out. I will go back to the aluminum block by the end of the summer and hopefully it will run better than the 10.34 127 mph it ran at 2008 winternationals.

bobby · 02-03-2009, 02:07 PM

Leaving the house on saturday, I spotted a 69 Yenko ZL-1 driving downt he road. Couldn't tell you if it was original or a clone, but it sure was nice. Must have been a clone for some fool to be driving it on the streets around Houston.

X-TECH MAN · 02-03-2009, 04:56 PM

Save your money. Its been proven before many years ago when NHRA allowed the iron block as a replacement for the alum. block in S/S that it makes more power. The weight difference is the only advantage of the alum. block. It has to do with heat retention. Thats my story and Im sticking to it.

Alan Roehrich · 02-03-2009, 05:03 PM

Actually, most have found that when comparing blocks as close to identical as possible except material, the aluminum block moves enough to make the HP difference. Given that aluminum is much less dimensionally stable over temperature variations, several things arise due to things not staying where you want them as the block moves around.

When it comes to heads, identical heads being a given, other than material, then the heat retention theory does indeed hold. If the heads are as dimensionally identical as possible, the iron heads will make more power.

John Mason · 02-03-2009, 05:56 PM

I believe Dale Howard's Camaro out of Las Vegas is an iron block, aluminum head 427 A/SA built by Gary Hettler. It runs very well.

Alan Roehrich · 02-03-2009, 06:24 PM

Quote:

Originally Posted by John Mason

I believe Dale Howard's Camaro out of Las Vegas is an iron block, aluminum head 427 A/SA built by Gary Hettler. It runs very well.

John, I was told at one time that it was a 427/425 car with 401 heads. I think that was last year. It was for sale a while back on racing junk. It does fly, though. He's got it listed for $50K.

John Mason · 02-03-2009, 10:18 PM

Alan, you're right. Gary and I talked about that combo last year at Vegas. I haven't seen Dale out for a while but that car is drop dead gorgeous. Almost as fast as Bobby D's.

RJ · 02-04-2009, 09:02 AM

xxxxx

02-02-2009, 08:48 PM	#1
RJ Member Join Date: Oct 2002 Posts: 248 Likes: 0 Liked 0 Times in 0 Posts	xxxxx Last edited by RJ; 03-22-2009 at 05:03 PM.

02-02-2009, 09:50 PM	#2
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,066 Likes: 1,487 Liked 1,630 Times in 378 Posts	Re: ZL1 stocker There are a couple in the works (iron block cars), and one aluminum block car ran Pomona last year but broke (he's a member of this board). We have one (aluminum block) but we're not rushing anything. __________________ Alan Roehrich 212A G/S

02-03-2009, 01:40 AM	#3
dahkahuna Member Join Date: Jul 2006 Location: san dimas , calif Posts: 128 Likes: 0 Liked 5 Times in 3 Posts	Re: ZL1 stocker Much like the Zl-1 Corvettes, yes there are at least 2 ZL-1 Camaros running. My Camaro started with the Aluminum block, but I broke a rod at the 2008 Winternationals. I am now entered at the 2009 Winternationals but have went to a iron block temporarily till I figure a few more things out with combo, because there ain't many people who know much about what this combo wants. It's all trial and error for me, but I am commited to get it figured out. I still feel the H.P. factor is to high an A/SA carrys 3730 lbs which makes it not 60 foot very well. I now have everything in place to move to AA/SA 3508 lbs after Pomona, and then we'll see if I'm on the right track. Many people think that the Aluminum block won't make the power that the iron block will of course not many will spend $4600. to find out. I will go back to the aluminum block by the end of the summer and hopefully it will run better than the 10.34 127 mph it ran at 2008 winternationals.

02-03-2009, 02:07 PM	#4
bobby Member Join Date: Jun 2008 Location: League City, Texas Posts: 243 Likes: 0 Liked 0 Times in 0 Posts	Re: ZL1 stocker Leaving the house on saturday, I spotted a 69 Yenko ZL-1 driving downt he road. Couldn't tell you if it was original or a clone, but it sure was nice. Must have been a clone for some fool to be driving it on the streets around Houston. __________________ Next time wave all of your fingers at me.

02-03-2009, 04:56 PM	#5
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: ZL1 stocker Save your money. Its been proven before many years ago when NHRA allowed the iron block as a replacement for the alum. block in S/S that it makes more power. The weight difference is the only advantage of the alum. block. It has to do with heat retention. Thats my story and Im sticking to it.

02-03-2009, 05:03 PM	#6
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,066 Likes: 1,487 Liked 1,630 Times in 378 Posts	Re: ZL1 stocker Actually, most have found that when comparing blocks as close to identical as possible except material, the aluminum block moves enough to make the HP difference. Given that aluminum is much less dimensionally stable over temperature variations, several things arise due to things not staying where you want them as the block moves around. When it comes to heads, identical heads being a given, other than material, then the heat retention theory does indeed hold. If the heads are as dimensionally identical as possible, the iron heads will make more power. __________________ Alan Roehrich 212A G/S

02-03-2009, 05:56 PM	#7
John Mason Member Join Date: Apr 2002 Posts: 147 Likes: 0 Liked 0 Times in 0 Posts	Re: ZL1 stocker I believe Dale Howard's Camaro out of Las Vegas is an iron block, aluminum head 427 A/SA built by Gary Hettler. It runs very well. __________________ John Mason 7743 SS

02-03-2009, 10:18 PM	#9
John Mason Member Join Date: Apr 2002 Posts: 147 Likes: 0 Liked 0 Times in 0 Posts	Re: ZL1 stocker Alan, you're right. Gary and I talked about that combo last year at Vegas. I haven't seen Dale out for a while but that car is drop dead gorgeous. Almost as fast as Bobby D's. __________________ John Mason 7743 SS

02-04-2009, 09:02 AM	#10
RJ Member Join Date: Oct 2002 Posts: 248 Likes: 0 Liked 0 Times in 0 Posts	Re: ZL1 stocker xxxxx Last edited by RJ; 03-22-2009 at 05:03 PM.