BigKevC5

Who has the fastest TRUE "stock bottom end" LT1 out there and what have they run?


Meaning right from the factory bottom end...no bolt changes/ piston changes/ crank changes...you get the idea...

<small>[ February 11, 2003, 11:15 AM: Message edited by: Kevin Sharratt ]</small>

chevyguy3

iTrader: (4)

i went 10.54@132 with lots of room for improvement. a 9 second pass would have been easy if i spent more time on that combo

cenman

chevyguy3, what was your combo when you ran that number. n20? blower? that's pretty impressive.

Pro Stock John

iTrader: (34)

He did that with H, C, and nitrous.

Impressive car.

I forget what he ran on motor.

racer88

We have an LT1 in our club and he just ran 11.3 @ 123 over at the Vette Viper Shootout in Bradenton.....an he only has Headers, 12 bolt, 3.73's and hits it w/ a l00 shot I believe...

<img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

<small>[ February 11, 2003, 02:53 PM: Message edited by: racer88 ]</small>

chevyguy3

iTrader: (4)

it was a LT4 head/cc306/nitrous/6 speed combo. since those runs i have lost 250lbs, improved traction a ton, and i didnt have any dyno tuning with that old combo, i was just running on a borrowed PCM file that was pig rich. on motor my best was 11.34@121. i dont have any DA figures for any of my runs, all i know is the track is at 662' altitude

Malicious

iTrader: (1)

A guy locally has a home turbo'd 97Z that he's gone 11.84(i think) at 128mph in his 6 speed with a like 2.2 60 foot. Headers and the turbo setup and cutout, no tuning. He just swapped for a stalled th400 and we'll see how he runs this weekend in Ennis <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

cenman

who ported the heads? and what gear, if you don't mind me asking. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

chevyguy3

iTrader: (4)

4.33 with a 28" tire.

heads were a Lingenfelter stage 2 CNC job, with a little more porting done by Second Street Speed in PA. i guess they found 9cfm more at peak on the intakes. 2.00/1.60 valves. i bought the heads used so i dont have any flow #s. fwiw the runners on them have a LOT less material taken out of them than my buddy's stage 3 GTP LT4s. i think the runner volume ended up being perfect for a 350 at the rpm range i was in, but that they are holding me back on my 396 now.

fwiw the heads were origionally done for a heavy car, with high boost 383 done by 2nd Street Speed

<small>[ February 11, 2003, 07:26 PM: Message edited by: chevyguy3 ]</small>

Tim98TA

iTrader: (7)

A local, SAR2K, has a stock top AND bottom end and ran 11.94 @ 111.50, 1.53 60'. No cam change. No head change or porting. I believe he has the fastest STOCK LT1 out there.

Tim

BigKevC5

The reason I ask....

I've gone 10.61@112 (not enough cam for the powerglide). We are installing a new cam this week to get me through the traps (it's a lunati 242/252 525/540lift 110lsa).

Combo should be good for a low 10 "maybe" high 9, just wanted to see if I would own the rights to the fastest TRUE "stock" bottom end LT1.

BigKevC5

About a 165 shot (left the gas jets for a 150 shot...and added a little larger n20 jet)

chevyguy3

iTrader: (4)

good luck with your project <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

i knew somewhere along the line somebody would get a 9 second pass out of a stock shortblock, maybe you will be the first <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" /> . i really would have liked to try for it, but already had a 396 in the works before i even found out my stock shortblock combo could run that strong

Tim98TA

iTrader: (7)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Kevin Sharratt:
<strong> The reason I ask....

I've gone 10.61@112 (not enough cam for the powerglide). We are installing a new cam this week to get me through the traps (it's a lunati 242/252 525/540lift 110lsa).

Combo should be good for a low 10 "maybe" high 9, just wanted to see if I would own the rights to the fastest TRUE "stock" bottom end LT1. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">How much gas you pumpin' through that thing?

Tim