ported npi heads?
07-17-2009, 02:35 PM
#1
2nd Gear Member
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Join Date: Jun 2008
Location: Illinois
Posts: 286
ported npi heads?
where cld and i send my npi heads to be ported ne kno and wat comes wld fit? i kno u guys r gonna say its not worth it but i may try it to keep my compression down in case i decide to run boost thanks
07-18-2009, 12:34 AM
#7
6th Gear Member
Join Date: Jan 2007
Location: MI
Posts: 5,884
I read an article recently (don't remember where unfortunately) that took a 96-98 with ported NPI heads, and stage 1 cams (full bolt ons as well...if i remember correctly) and turned around 280 rwhp/310 rwtq.
This may be the exception (i wouldn't know really) to the rule, but someone did it!
Last edited by mrtstang; 07-18-2009 at 12:37 AM.
07-18-2009, 05:19 AM
#8
3rd Gear Member
Join Date: Jan 2009
Location: Florida
Posts: 570
Maybe 5 years ago, people are doing 340-350RWHP with ported PI heads and cams on the stock plastic intake these days.
One of the fastest N/A NPI cars is a 3800lb Tbird that is running low 12's at 112MPH. To do that requires well over 300RWHP.
07-18-2009, 05:22 AM
#9
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Join Date: Jan 2009
Location: Florida
Posts: 570
They are currently building a motor with ported NPI heads, 4V shortblock, Bullet Stage 2.5 NA cams, and plastic PI intake that will be on the dyno in a few weeks. We shall see shortly.
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