NipRing Posted May 20, 2014 Report Share Posted May 20, 2014 I called around and to get my 317s w/ 130k decked/valve job/magnafluxed/etc(no porting though) is $500 Or i can get a set of used 243s w/50k for $475. I'm leaning to the 243s what do you guys think? Quote Link to comment Share on other sites More sharing options...
Link2603 Posted May 20, 2014 Report Share Posted May 20, 2014 Is this going on a N/A truck? Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
NipRing Posted May 20, 2014 Author Report Share Posted May 20, 2014 (edited) So far, yes. I'm probably a few years out from a SC Edited May 20, 2014 by NipRing (see edit history) Quote Link to comment Share on other sites More sharing options...
Link2603 Posted May 20, 2014 Report Share Posted May 20, 2014 I would spend the money on the 243's Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
NipRing Posted May 20, 2014 Author Report Share Posted May 20, 2014 Local machine shop told me the flow on the 317s were about as good as they are going to get at stock. I wonder if the 243s can be ported Quote Link to comment Share on other sites More sharing options...
NipRing Posted May 20, 2014 Author Report Share Posted May 20, 2014 Ok, i bought the 243s. We'll see how they look when they get here. Quote Link to comment Share on other sites More sharing options...
Link2603 Posted May 20, 2014 Report Share Posted May 20, 2014 They can be plus you ll gain a little extra Hp off the extra compression you ll get from them. Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Mr.Scary Posted May 20, 2014 Report Share Posted May 20, 2014 Contact TEA about your heads.. or pm ShadowSniper.. ask him about the flow rate of stock 317s vs TEA ported 317s... he will educate you son Quote Link to comment Share on other sites More sharing options...
NipRing Posted May 20, 2014 Author Report Share Posted May 20, 2014 I like to be educated! My knowledge only comes from others who are answering question i ask them. Are the 243s not as capable as ported 317s? I dont know. But i hear how the 243 is a damn good stock head. So i'm gonna take the chance. We'll see. Quote Link to comment Share on other sites More sharing options...
AKSSS Posted May 20, 2014 Report Share Posted May 20, 2014 Everything is effected by budget. Your decision on your heads should reflect that also. Machining heads can get expensive. Sometimes it is better to buy an off the shelf aftermarket head for what you can get cnc'ing done to stock heads. Just saying. The 243's will be just fine for your truck though. I can't remember the cc on them? 65cc? You can always put on a thicker head gasket when you get ready to go forced induction. Quote Link to comment Share on other sites More sharing options...
NipRing Posted May 20, 2014 Author Report Share Posted May 20, 2014 I was gonna throw the ls9 gaskets on there anyway. Quote Link to comment Share on other sites More sharing options...
chpspecial Posted May 20, 2014 Report Share Posted May 20, 2014 The 243 and 317 heads are almost identical minus the combustion chamber size. So what works for one will work for the other. The 243 stock will raise compression to that of an ls2 Sent from my HTC6500LVW using Tapatalk Quote Link to comment Share on other sites More sharing options...
evandostert Posted May 20, 2014 Report Share Posted May 20, 2014 I went with 243's. They are so cheap if you shop around. I wouldn't bother with the old 317's. You can even sell the old ones for 200 on craigs. I got 243 off a junkyard sending them out for port and polish locally. The bump in compression is nice and they flow a touch better stock. Quote Link to comment Share on other sites More sharing options...
CrashTestDummy Posted May 24, 2014 Report Share Posted May 24, 2014 243s 64cc 317s 71cc 317s are sand cast heads 5,6,7,8, Hp can be picked up cleaning up the casting flash 243 & 317 ports are the same other wise 035s are semi perminate mold type heads like the 243s but seem kinda rare 243s on a LQ9 should have static compression @ about 11:1 what are you using for a cam? Quote Link to comment Share on other sites More sharing options...
NipRing Posted May 24, 2014 Author Report Share Posted May 24, 2014 At the moment, stock. When I get around to putting these on...maybe something different, not sure yet. Quote Link to comment Share on other sites More sharing options...
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