TAEnvy

iTrader: (2)

I have a few questions guys? \
Can You give me some flow numbers on heads?
AFRs? Stock LS1 and LS6s? Ported LS1 and LS6 Heads? Ported 5.3 Heads? ETP Heads? Dart Heads?

Would porting stock heads make for some good heads and still be cost effective? How much would a good head port cost? What about flow numebrs afterwards? If your on a budget would ported stocker perform with or close to aftermarket heads?

sroach20

iTrader: (31)

get some ported 243(ls6) or 317(6.0) heads from patriot-------->sponsor. if you send an email by monday at midnight you can lock in there awesome prices.
https://ls1tech.com/forums/generation-iii-internal-engine/544423-new-243-castings-385-00-per-pair.html

67Firebird455

iTrader: (27)

I agree. I had a set of #317's ported by another private member, flowing 321CFM @ .600 now, 307 @ .550. For the money, you really can't beat the 317 if you're large displacement or FI, or the 243's for higher compression.

quiet_storm98

iTrader: (48)

most people say its not worth it to port the stock LS1 heads however a guy i know said one of his friends had his ported by some shop out in Florida and with a comp 230/236 cam and LS6 intake he was putting down over 450 to the wheels so whoever ported them did an awesome job..however usually people don't get numbers like that from ported stockers

michael402z06

iTrader: (15)

i would get a used set of ls6 heads. they flow good and u could always get them ported. if you don't want to spend a couple grand on a set of heads.

RrCoX22

iTrader: (6)

like said previously... if you have the money get yourself some Pat. Perf. 243's before the sale goes... can always get them ported later if your funds are limited at the moment

orangeapeel

iTrader: (18)

I have the 317's on one camaro and 241's on another. I would get 243's, but Warhawks are in it's future.

Bo White

iTrader: (59)

A ported stock head will flow close to what a small runner aftermarket head will. But, the ported head will be 220+ cc in size and the aftermarket head will be 200-205cc. The smaller head of the two with same flow #s will be a better head choice for responce and torque. The bigger the port, the more "lazy" the engine will be down low.