Stang's Bane

iTrader: (22)

If you build a 427 out of a 4.065 bore block, then yes that is good advice. but if you build it with a 4.125 bore, then you shouldn't have any problems doing some spray or boost assuming it is built with whatever you want in mind.

ss dave

I have a very streetable LS7 430. 502whp on a Dyno Dynamics in a very hot (>100) shop.

njc.corp

Mikey i see in your sign that u have a 675 rwhp on a 427 ls2- soild roller-

is that a street engine or a race motor only-

i am in the middle of working out which to go soild or hydro-

just want to know if it;s a streeter of how the soild reacts to street conditions

Any help would be nice-

Thanks

jason99frc

iTrader: (12)

Not an LS7 but good info for you more budget oriented guys.
My setup:

LS2 block
Darton 4.125 sleeves, Lunati 4.0 Crank, Oliver 6.125 rods, Wiesco Pistons
LS6 TSP stage X heads w/ Alum rockers, Unported Fast 90 & unported LS2 TB, 85mm Maf, Comp 248/254 601-610 112 cam
511rwhp/480 rwtq
Crank and rods are a little pricey but they dont have to be.
Planning on shooting for 600rw n/A ~ December with an LS7 Head/Intake/TB/maf/UD pulley upgrade. Gathering parts now as deals arise.

11.3 @ 128 on Nitto's w/ a 1.87 60 foot. Easy drive away from the tree launch didnt floor it until 2nd about 100 feet out. Has a 10.7 ish in it on good tires without totally abusing the car.
2001 Z06

DBN

iTrader: (6)

My pump gas LS7 was making 545 rwhp and 497 rwtq and ran many 9.9 passes with a best of 9.93@136.90 in my A4 C5. I have since changed to a different cam design but have not gotten a fulll pull on the dyno as the tires continued to break loose as I squeezed the throttle open. The new camshaft made 35-40 more rwhp down low and 25-30 more rwtq but I had to let off at 5800 due to tire spin.

corvet786c

iTrader: (6)

I see hp #'s but where is all the torque. That is what moves the car. The TQ is what gets a better et.

Deeavi

iTrader: (16)

My LS7 Block based 427 made 485 rwhp/485 rwt on the first dyno tune. It is 98% street. AC and all the extras. The comp cams cam that I had was a pain to get the idle right on, so I have since changed the cam to a Lunati VooDoo (less overlap), but have not had it re-tuned. It feels a lot stronger and is scary on the street. It sure is a lot more fun to drive now. The tune is not far off, but I am going to get it dialed in and dynoed again soon. Have not taken it to a track yet. Maybe later.

89Formulaws6

iTrader: (52)

the guys with the 4.125 stroke does anything special have to be done for that big of a stroke?

Mr Z51

How about Ragin Racin. They don't play. Realistic numbers and times.

551hp and a 10.62

http://www.youtube.com/watch?v=Pbglo-IUtD0