2008-9 Impala 5.3 - Page 2

brian schuetta · 03-03-2021, 09:18 PM

So they all have 4T65s? Adger I did finally clear my e-mail. Thanks for your replies.

SSDiv6 · 03-03-2021, 09:37 PM

Quote:

Originally Posted by brian schuetta

So they all have 4T65s? Adger I did finally clear my e-mail. Thanks for your replies.

They are supposed to have a 4T65E-HD.
There are lots of racing components for those transmissions and there is even a racing guidebook that was published by GM Racing.

You can download the manual from the link shown below.

https://docs.google.com/file/d/0B2Tw...ZIZ25BUmM/edit

ss3011 · 03-04-2021, 10:27 AM

There used to be some HiPo parts available when GM was supporting the Sports Compact program . That was a long time ago , and there are none of Engineers that used to work in that group left working at GM .

SSDiv6 · 03-04-2021, 11:50 AM

Quote:

Originally Posted by ss3011

There used to be some HiPo parts available when GM was supporting the Sports Compact program . That was a long time ago , and there are none of Engineers that used to work in that group left working at GM .

A lot of the components were also made by Coan for John Lingenfelter (RIP). Intense Racing, which does a lot of 3.8 SC stuff, has a lot of parts for the transaxle for high HP applications.

ss3011 · 03-04-2021, 05:26 PM

A special version of the 4L65 was built for Volvo , before Ford bought them . It had the highest sprocket ratio and Final Drive ratio . Also had the heat treated 4th clutch shaft . Those parts would be a good upgrade for drag racing , although you probably won't ever get into 4th gear . One thing for sure is to get some high torque half shafts . There may be aftermarket help for that .

Mike Taylor 3601 · 03-04-2021, 07:54 PM

had dealership in town request me come down and check cylinders with bore gaugein a 5.7 for warranty company....I don't remember now if was impala or monte carlo ss... I'm thinking it was impala,because i assumed OK 350 SS impala LT-1..set gauge 4'' got there it was front wheel drive LS... I can't remember now but I'm pretty sure it was 5.7 LS
front wheel drive impala SS

brian schuetta · 03-07-2021, 07:38 PM

Yes, 5.3 SS in 2008-2009 that I remember. Used to rent one from El Paso airport and bracket race it, 15.1 - .20 at 3800+ altitude and hot weather. Always wanted to race one at lower altitudes. You could cut great lights and it was consistent. Plus ABS, which I needed.

03-03-2021, 09:18 PM	#11
brian schuetta Member Join Date: Apr 2005 Location: san antonio tx Posts: 255 Likes: 5 Liked 28 Times in 15 Posts	Re: 2008-9 Impala 5.3 So they all have 4T65s? Adger I did finally clear my e-mail. Thanks for your replies.

03-04-2021, 10:27 AM	#13
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 885 Likes: 63 Liked 221 Times in 102 Posts	Re: 2008-9 Impala 5.3 There used to be some HiPo parts available when GM was supporting the Sports Compact program . That was a long time ago , and there are none of Engineers that used to work in that group left working at GM .

03-04-2021, 05:26 PM	#15
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 885 Likes: 63 Liked 221 Times in 102 Posts	Re: 2008-9 Impala 5.3 A special version of the 4L65 was built for Volvo , before Ford bought them . It had the highest sprocket ratio and Final Drive ratio . Also had the heat treated 4th clutch shaft . Those parts would be a good upgrade for drag racing , although you probably won't ever get into 4th gear . One thing for sure is to get some high torque half shafts . There may be aftermarket help for that .

03-04-2021, 07:54 PM	#16
Mike Taylor 3601 VIP Member Join Date: Oct 2008 Location: Somerset,Ky Posts: 1,303 Likes: 198 Liked 116 Times in 48 Posts	Re: 2008-9 Impala 5.3 had dealership in town request me come down and check cylinders with bore gaugein a 5.7 for warranty company....I don't remember now if was impala or monte carlo ss... I'm thinking it was impala,because i assumed OK 350 SS impala LT-1..set gauge 4'' got there it was front wheel drive LS... I can't remember now but I'm pretty sure it was 5.7 LS front wheel drive impala SS

03-07-2021, 07:38 PM	#17
brian schuetta Member Join Date: Apr 2005 Location: san antonio tx Posts: 255 Likes: 5 Liked 28 Times in 15 Posts	Re: 2008-9 Impala 5.3 Yes, 5.3 SS in 2008-2009 that I remember. Used to rent one from El Paso airport and bracket race it, 15.1 - .20 at 3800+ altitude and hot weather. Always wanted to race one at lower altitudes. You could cut great lights and it was consistent. Plus ABS, which I needed.