Porting 241's???
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iTrader: (14)
Joined: Jan 2007
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From: Woodward Avenue
Porting 241's??? Realistically what would I gain from some ported 241's? My cousin has a extra set that he's gonna give to me and I plan on getting them ported and slapping them on. I plan on doing another build in a couple years so i'm not looking to add tfs, afr, prc, 243's, or any other set of heads right now cause I have other priorities at the moment.
I can get them ported fairly cheap so I figure I'd take a shot at it even if it only adds 10-15rwhp
If your not familiar with my car its a bolt on cam only auto with a little something extra
I can get them ported fairly cheap so I figure I'd take a shot at it even if it only adds 10-15rwhp
If your not familiar with my car its a bolt on cam only auto with a little something extra
Realistically what would I gain from some ported 241's? My cousin has a extra set that he's gonna give to me and I plan on getting them ported and slapping them on. I plan on doing another build in a couple years so i'm not looking to add tfs, afr, prc, 243's, or any other set of heads right now cause I have other priorities at the moment.
I can get them ported fairly cheap so I figure I'd take a shot at it even if it only adds 10-15rwhp
If your not familiar with my car its a bolt on cam only auto with a little something extra
I can get them ported fairly cheap so I figure I'd take a shot at it even if it only adds 10-15rwhp
If your not familiar with my car its a bolt on cam only auto with a little something extra
id say 20 is well within reason...
Stock 241's flow 236 @ .600.
Advanced Induction ported 241's flow 285 cfm @ .600.
Stock 243's flow 265 cfm @.500 lift and fall off to 260 @ .600
Advanced Induction ported 243's flow 300 cfm @ .600
http://www.advancedinduction.com/AiProductsGMLS.html
Stock 241's flow 236 @ .600.
Advanced Induction ported 241's flow 285 cfm @ .600.
Stock 243's flow 265 cfm @.500 lift and fall off to 260 @ .600
Advanced Induction ported 243's flow 300 cfm @ .600
http://www.advancedinduction.com/AiProductsGMLS.html
dont think a 300 dollar port job will get you close to 285 cfm, but probably 260-270 range anyways. stock 243's can be had for that same price too... but since you got the 241 heads for free, your basically getting the same hp per dollar spent in the end. Id say do it!
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A $300 port job probably won't pick up much power unless you're found somebody out there that doesn't think their work is worth any money.
FWIW, I picked up 40rwhp from a set of ported 241's from A.I. with stock valves, milled .018.
FWIW, I picked up 40rwhp from a set of ported 241's from A.I. with stock valves, milled .018.
I agree, @ 750.00 i would wait and put the money into something else. Just think AI ported 241's cost around a grand and will net 35-40whp... but prc stage 1 ls6 heads will net 50whp+ for roughly the same money. Thats why not many mess with 241's unless they can get somebody to port them for next to nothing, or you are skilled enough to do it yourself...
241's are fine. They're only major draw back in CC size. A properly ported 241 will make 30-40rwhp.
I have a customer with a proven set of A.I. ported 241's. They made 40rwhp with STOCK VALVES. Get with Ron/Phil @ A.I. and they'll give you a porting job worth paying for, and worth using the 241's. Phil can also mill your heads exactly to specs according to camshaft profile.
Big compression with smaller chamber heads is great, but it's not the end all/be all to making power like the internet says.
I have a customer with a proven set of A.I. ported 241's. They made 40rwhp with STOCK VALVES. Get with Ron/Phil @ A.I. and they'll give you a porting job worth paying for, and worth using the 241's. Phil can also mill your heads exactly to specs according to camshaft profile.
Big compression with smaller chamber heads is great, but it's not the end all/be all to making power like the internet says.
I am fairly new to the LS community, so I can't say what 241s would do performance-wise compared to 243s, but it comes down to this: you have 241s, for $999, you can go to TEA or AI and you KNOW you will receive a top quality set of heads in return that have all the tweaks and tricks done, good valve springs properly set up, etc. If you HAVE to have 243s, but have no cores, then a set of ready mades from one of the sponsors would be okay. I personally have used TEA twice in years past, and their quality and customer service have been top of the line. I am sure TEA and AI know exactly how much to mill from the heads to generate maximum compression while staying well within piston to valve clearance and without causing head to intake issues.
241's are fine. They're only major draw back in CC size. A properly ported 241 will make 30-40rwhp.
I have a customer with a proven set of A.I. ported 241's. They made 40rwhp with STOCK VALVES. Get with Ron/Phil @ A.I. and they'll give you a porting job worth paying for, and worth using the 241's. Phil can also mill your heads exactly to specs according to camshaft profile.
Big compression with smaller chamber heads is great, but it's not the end all/be all to making power like the internet says.
I have a customer with a proven set of A.I. ported 241's. They made 40rwhp with STOCK VALVES. Get with Ron/Phil @ A.I. and they'll give you a porting job worth paying for, and worth using the 241's. Phil can also mill your heads exactly to specs according to camshaft profile.
Big compression with smaller chamber heads is great, but it's not the end all/be all to making power like the internet says.
Staging Lane
Joined: Jun 2010
Posts: 88
Likes: 0
From: SOMEWHERE !
$750 for port job on LS1 241s is too much
that's why you can get :-
1. Used stock 243 with stock valves/ springs for $450-$500
2. New stock 243s with stock valves / stock springs from GMPartsDirect PN#12564824 for $860 pair
3. PRC LS6 stg 1 or Patriot LS6 stg 1 $1000-$1100
that's why you can get :-
1. Used stock 243 with stock valves/ springs for $450-$500
2. New stock 243s with stock valves / stock springs from GMPartsDirect PN#12564824 for $860 pair
3. PRC LS6 stg 1 or Patriot LS6 stg 1 $1000-$1100
if i was you i would look for a used set of prc on here i found a set of prc stage 2s for 800 with prc spings good for a .650 lift. But if you want there is a craigslist post by me that is selling a set of 241s.he said they flow at 300 cfm fresh and he wants $700 maybe that will be good for you and keep an extra set of 241s check it out.
http://chicago.craigslist.org/sox/pts/1972810689.html
http://chicago.craigslist.org/sox/pts/1972810689.html
Teching In
Joined: Jul 2007
Posts: 15
Likes: 0
From: Indianapolis, IN
if the person working on the heads really knows what they're doing, you can have a really nice set of 241's. i've got a set of 241's that flow 300cfm at .600 and 305cfm at .650 with a 2.02 intake valve... so you can really get them to flow if the proper time goes into them.. i have about $1,000 in mine though, so that's a bit more than you may be looking to spend