thinking 347 short block
12-04-2009, 11:37 AM
#1
2nd Gear Member
Thread Starter
Join Date: May 2008
Posts: 287
thinking 347 short block
if i get a short block what gains will i see(power wise)?
i would to see 400hp and 6k rpm
and i want it to be reliable (able to beat on it)
or is ther another way i can go
im in ca so i want to be smog legit...
i would to see 400hp and 6k rpm
and i want it to be reliable (able to beat on it)
or is ther another way i can go
im in ca so i want to be smog legit...
12-05-2009, 10:45 AM
#8
2nd Gear Member
Thread Starter
Join Date: May 2008
Posts: 287
what should i do a h/c/i on my current engine then do 347 short block?
remember i want it to be smog legal so all the h/c/i parts that i get would be 50 state legal
i was first thinking go h/c/i then forced induction to geet my the rest of my way.But i dont know how mush psi i can throw at the block before it goes boom.thats whenn i started to think about 347 and doing a topend set up on there and getting where i wanted with no forced induction,that way when/if i wanted more power i still had the choice of a forced setup.
cant do it all at once otherwise i wouldn't be here. im getting anxious and thinking of getting a procharger or somthing for first mod. but im also not feeling to comfortable about that idea.
if i did got a h/c/i that was designed to operate up to 6500+rpm on my stock bottom end is it safe to do so?
remember i want it to be smog legal so all the h/c/i parts that i get would be 50 state legal
i was first thinking go h/c/i then forced induction to geet my the rest of my way.But i dont know how mush psi i can throw at the block before it goes boom.thats whenn i started to think about 347 and doing a topend set up on there and getting where i wanted with no forced induction,that way when/if i wanted more power i still had the choice of a forced setup.
cant do it all at once otherwise i wouldn't be here. im getting anxious and thinking of getting a procharger or somthing for first mod. but im also not feeling to comfortable about that idea.
if i did got a h/c/i that was designed to operate up to 6500+rpm on my stock bottom end is it safe to do so?
12-05-2009, 12:28 PM
#9
6th Gear Member
Join Date: May 2004
Location: las vegas, nv
Posts: 9,092
your stock h/c/i on a 347 would make no more power then your making now.
you can make a 347 make good power and still be legal. your best bet would be a set of afr 185 heads, custom cam and not sure on intake but they make good ones that are 50 state legal
you can make a 347 make good power and still be legal. your best bet would be a set of afr 185 heads, custom cam and not sure on intake but they make good ones that are 50 state legal
12-05-2009, 02:17 PM
#10
2nd Gear Member
Thread Starter
Join Date: May 2008
Posts: 287
hmm thought i would gain something...
well i wanted to purchase the afr 185s in the next few weeks maybe with a cam i might wait and get the can along with the intake manifold..
the afr 185s says emissions legal and so far they are the highest flowing emissions legal heads i have come across
also would i have to notch my pistons?(i have a 89 )there site says 86's have to be notched
Last edited by newpony; 12-05-2009 at 02:38 PM.