[mgrotel]

so humor me and give me some suggested head/cam/piston combos that would make this possible with my 383. i say 400 cause i know thats about the limit of the injection system on my L31 and id like to keep that. i have a volant intake and will have long tube headers. i still want to keep my very strong low end torque too.

 

[FarmTruk]

I'm surprised you're not close to that figure now.

Cut the valvespring seats down, and slip a bit hotter cam into her.

Check this out for pointers ---> http://www.chevyhiperformance.com/howto/97458/index.html

400+ hp from a Vortec 383 is not uncommon.

 

[mgrotel]

i guess maybe i should dyno to see where im at now, huh?

 

[mgrotel]

awesome, that will cut down the cost quite a bit if i just modify my existing heads instead of buying new ones.

 

[mgrotel]

its been suggested to me to look at a cam with something like these specs:
214/220 with about .5" of lift
thoughts?

 

[mgrotel]

geez, i didnt realize that crane cams got acquired...

 

[mgrotel]

http://www.compcams.com/Cam_Specs/CamDetails.aspx?csid=187&sb=2
???
would act a little more mild since its going in a 383 and not a 350

 

[mgrotel]

or http://www.compcams.com/Cam_Specs/CamDetails.aspx?csid=208&sb=0

or will my heads not handle that much lift, even with modifying?

 

[mgrotel]

bump

 

[mgrotel]

bump, one more time

 

[RandomHero]

Are you looking for 400 to the wheels or the flywheel. IMO it's not going to happen if you're looking for 400 rwhp unless you invest in some big $$

 

[FarmTruk]

or http://www.compcams.com/Cam_Specs/CamDetails.aspx?csid=208&sb=0

or will my heads not handle that much lift, even with modifying?

I'm no cam expert.

But from what I've read, and supported by the link I posted, that cam's going to be too big for GM Vortec heads like you have.

It's stating max lift is about 0.525" before the springs bind up.

 

[LSXC1078]

AFR heads if you got the cash!

 

[mgrotel]

Are you looking for 400 to the wheels or the flywheel. IMO it's not going to happen if you're looking for 400 rwhp unless you invest in some big $$

flywheel, i know thats about the limit of my intake

 

[mgrotel]

I'm no cam expert.

But from what I've read, and supported by the link I posted, that cam's going to be too big for GM Vortec heads like you have.

It's stating max lift is about 0.525" before the springs bind up.

i think your right, im leaning towards the other cam i posted, or something similiar anyway