how much power
Thread Starter
Registered User
Joined: Feb 2007
Posts: 12
how much power
i am a new owner of a 02 z/28 auto and wondering how much rwhp the stock bottom end can take before you need to worry this will be a daily driver and want to do a head and cam i would like to get around 400 to 450 at the wheels will the bottom end hold what would be a good combo for head and cam i already have underdrive pulley and lid
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Joined: Sep 1998
Posts: 8,319
From: US 1 Mile Marker 52 in the Florida Keys
one word...punctuation...
450rwhp is very doable and the bottom end will take it with minimal concern.
an auto is gonna be harder to get to your goals, but it can be done
400rwhp...any of the mid 23x cams and boltons with a dyno tune will meet your goal. something like the FM14 from futral, or the TSP Torquer or MS3/4
450rwhp will require heads and probably a new FAST intake.
don't forget things like torque converter and rear end when you start making that kind of power.
do some reading on the last 15 pages of the forum...most of what you asked is covered weekly
450rwhp is very doable and the bottom end will take it with minimal concern.
an auto is gonna be harder to get to your goals, but it can be done
400rwhp...any of the mid 23x cams and boltons with a dyno tune will meet your goal. something like the FM14 from futral, or the TSP Torquer or MS3/4
450rwhp will require heads and probably a new FAST intake.
don't forget things like torque converter and rear end when you start making that kind of power.
do some reading on the last 15 pages of the forum...most of what you asked is covered weekly
Registered User
Joined: Nov 2000
Posts: 138
From: Baton Rouge, LA USA
i am a new owner of a 02 z/28 auto and wondering how much rwhp the stock bottom end can take before you need to worry this will be a daily driver and want to do a head and cam i would like to get around 400 to 450 at the wheels will the bottom end hold what would be a good combo for head and cam i already have underdrive pulley and lid
p.s. The stock bottom end will be fine for any street head/cam combinations.
Last edited by David @ Thunder; Feb 8, 2007 at 05:08 PM.
Thread Starter
Registered User
Joined: Feb 2007
Posts: 12
I know i am not an english major so sorry.
i do plan on putting in a 3200 yank
thinking either 3.42 or 3.73 gear not sure which.
thanks for the help.
how do i tell if i have a ls6 block?
i know i said every day driver but it will not be every day mostly weekends.
and maybe one or two days to work but i have another crapy car for work
but if the p.o.s. doesnt start i dont want to worry taking the good car and having the feather the gas to keep it running
i do plan on putting in a 3200 yank
thinking either 3.42 or 3.73 gear not sure which.
thanks for the help.
how do i tell if i have a ls6 block?
i know i said every day driver but it will not be every day mostly weekends.
and maybe one or two days to work but i have another crapy car for work
but if the p.o.s. doesnt start i dont want to worry taking the good car and having the feather the gas to keep it running
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Joined: Jan 2005
Posts: 2,592
From: N Falmouth MA
Apparently there have always been two version of the LS1: One built in Montupet, and one built in Nemak, Mexico. They use two different methods in creating the block, and apparently the Nemak block is a stronger, more performance oriented block. (The material properties were about 10% higher/stronger. Nemak uses a low-pressure precision fan process, more high performance oriented.). When the Z06 Corvette came out, GM decided to use the Nemak plant to build the LS6 block, since they built stronger blocks. So Nemak built LS6's, while Montupet built LS1's. Since there were so many LS6 blocks made, several made it into F-bodies. Numbers from GM are that about 10-15% of 2001 cars had LS6 blocks, and 25% of 2002 cars did. To confirm if your 2001-2002 F-body has an LS6 block, grab a mirror and a flashlight. Open the hood and head over to the driver's side to try and see the back of the left-hand deck, above the transmission flange. A cast-in #12561168 denotes the LS6 block. And if you aren't able to see the number, you may be able to tell by the block's luster-the Montupet plant cast a shinier block, the Nemak plant made the duller block. The Z06 block (LS6 block) is not only much stronger, it also has 87% better ventilation between bays, which equates to less pumping losses at high RPM's
YEah.. Not all 01's and 02's came w/ the LS6 block.. a fraction of them, but I still like the #..
.. The bottom end of the LS* block is a 6 bolt main and can handle a LOT of power. I've heard people running about 800 hp on a stock block. On an FI block, H/C w/ stock intake and 5-8psi boost is the breaking point for most. I would say heads (205cc) and an average mild cam (228/ .581) cam w/ a 125 shot of N2O would be about borderline on a stock bottom end LS1/6.
Last edited by Bayer-Z28; Feb 8, 2007 at 11:24 PM.
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Joined: May 2003
Posts: 1,747
From: Farmington, MI
Aside from heads, cam and valvetrain...I've heard the stock internals can handle about 550hp at the crank. Much more than that and the ringlands might start to go. The crank itself is pretty strong...but, the supporting hardware like the rod bolts can let go from high rpm use. In the end, the thing to remember is there's a right way and a wrong way to make power. Pick two of the three:
1) Cheap
2) Reliable
3) Powerful
1) Cheap
2) Reliable
3) Powerful
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Joined: Jul 1998
Posts: 6,247
From: Charlotte,MI USA
Aside from heads, cam and valvetrain...I've heard the stock internals can handle about 550hp at the crank. Much more than that and the ringlands might start to go. The crank itself is pretty strong...but, the supporting hardware like the rod bolts can let go from high rpm use. In the end, the thing to remember is there's a right way and a wrong way to make power. Pick two of the three:
1) Cheap
2) Reliable
3) Powerful
1) Cheap
2) Reliable
3) Powerful
Thread Starter
Registered User
Joined: Feb 2007
Posts: 12
what do you think of this combo
trick flow heads 215cc
trick flow stage 3 cam lsa 112 228 230 @.5 .585 .585
fast intake
90mm throttle body
new 1.7 rockers
jet hot long tube headers
yank 3200 stall
motive 3.73 gears with new locker
and dyno tune
trick flow heads 215cc
trick flow stage 3 cam lsa 112 228 230 @.5 .585 .585
fast intake
90mm throttle body
new 1.7 rockers
jet hot long tube headers
yank 3200 stall
motive 3.73 gears with new locker
and dyno tune
Registered User
Joined: Feb 2005
Posts: 1,326
From: fairless hills pa
sounds ok, someone with better cam knowledge can tell you if 90/90 is overkill for you. you migh tbe able to get away with ls6 intake. i wouldnt waste the money on new rockers just yet. put that money elsewhere. do your research on the torque convertors too. if you plan on running n20, some tc's say this part "acts like an anti-balloon plate" while others actually have the ab plate
Thread Starter
Registered User
Joined: Feb 2007
Posts: 12
I dont want to run turbo supercharger and n20
i dont understand them enough to run them and remember my dad says keep it simple stupid
I think that h/c and tune with some other parts would be safer with me
i dont understand them enough to run them and remember my dad says keep it simple stupid
I think that h/c and tune with some other parts would be safer with me