I just got my car back on the road after putting it nearly 100% back to stock. I plan on selling it in the coming months and picking up a new or low mileage Z06. Since I couldn't get rid of the car without dynoing it, I strapped it down this evening to see what it would do.

Since all I had was a bare block at the shop, I found some parts to get the motor back together. Here is what went into the motor:

- brand new stock pistons/rods, polished stock crank
- JE rings
- Federal Mogul rod, main, and cam bearings
- ARP rod bolts
- ARP main studs

I used a set of stock '01/'02 "241" castings and an '01/'02 stock cam. This is all I could find when I had time to work on the motor.

I had the block stress honed and align honed before I assembled it. You are probably wondering why use all these nice parts when it was just going to be sold? Well, I already had the machine work done and parts purchased before I decided to put it back to stock. lol

I finally put the motor in last Saturday night and spent most of this week getting the shocks swapped out, stock rearend in,etc. I put 230 miles on the motor this weekend, so it is broke in enough for me.

Since I couldn't find any of my '99 exhaust manifolds, I used a set of '01/'02 manifolds/cats. Pretty much my car is an '01/'02 now since I have the newer heads/cam and manifolds. The only difference is that I'm using a stock LS1 intake instead of the LS6 that came on those cars. I also left my Whisper lid on, along with a cutout.

Here is what the car pulled:
Back to stock - Whisper lid/cutout - 332rwhp/351rwtq

(Ignore the torque reading. For some reason it spiked when the run started. It pulled 351.4 rwtq at peak.)

I was very pleased with the #s to say the least. I would be curious to see what a LS6 intake would do.

That's the good news.. the bad news is I blew up tranny #3 last night. I thought going back to stock would be easy on parts. It is popping out of 3rd gear all the time. I have a rebuilt T56 going in tomorrow after work.

Jason

 

nice numbers, so did you gain around -150hp with the new motor

 

What a project!
Congratulations on breaking the 11-sec sound barrier with your all-motor 346.
Sorry to see it go.
Good luck on the next car!

 

Must be nice to be that bored

 

gonna mod the z06? also nice numbers for the stocker! Really good tq.

 

Very strong motor..

 

Nice number .... i will back to the stock also ...

 

Damn, that thing would make some sick power with a set of Longtubes and an LS6 intake.

 

That's killer power! Great job.

 

Jason i hate to see that car go. It was still the best Track race ive ever had. Good luck with the Z06.

 

Thanks guys!

Mike, yes, that was the best race I ever had at the track too. I still have the video saved:

http://members.***.net/kcr19/JasonSBSO11.19.MPG

 

 

Jesus that damn caprice was faster than hell! Those things weigh like 4000+ lbs don't they?

 

Yep, I believe Mike's Impalla has gone some 10.8x in better weather. It definitely surprised alot of people!