Domzs Posted April 8, 2013 Share Posted April 8, 2013 Just picked a set of LS3 heads and intake for $550 . All have 0 miles , but the heads do have some scratches and dings . Good price ? Does anyone know anything about 823 casting ? All i need now is a rebuildable 6.0 iron block to start my turbo build . Quote Link to comment Share on other sites More sharing options...
CrayZ Posted April 8, 2013 Share Posted April 8, 2013 That's a great price. I would have stuck with the 317 heads though. They are a better platform for turbo due to the lower compression they provide. Quote Link to comment Share on other sites More sharing options...
Domzs Posted April 8, 2013 Author Share Posted April 8, 2013 Trying to find some spec on this casting , not much help on LS1Tech . Think this is a large chamber casting ( truck L92 ) . Quote Link to comment Share on other sites More sharing options...
mattd428 Posted April 8, 2013 Share Posted April 8, 2013 i think you just need to send them my way out of the goodness of your heart. Quote Link to comment Share on other sites More sharing options...
Domzs Posted April 8, 2013 Author Share Posted April 8, 2013 i think you just need to send them my way out of the goodness of your heart. LOL . Won't do you any good without 4" bore block , Matt . Quote Link to comment Share on other sites More sharing options...
mattd428 Posted April 9, 2013 Share Posted April 9, 2013 The trans am needs a good set of heads theres a 4.000 bore Quote Link to comment Share on other sites More sharing options...
Domzs Posted April 9, 2013 Author Share Posted April 9, 2013 The trans am needs a good set of heads theres a 4.000 bore Yes , it does . 98 are junks . LOL Quote Link to comment Share on other sites More sharing options...
Zfan1 Posted April 9, 2013 Share Posted April 9, 2013 (edited) GM 823 castings 260CC intake runner 70CC chambers 2.165 intake valve 1.59 Exhaust valve Advertised flow rate is 320-330 cfm at .0600 lift. That is all I could come up with, hope it helps! Edited April 9, 2013 by Zfan1 Quote Link to comment Share on other sites More sharing options...
Domzs Posted April 9, 2013 Author Share Posted April 9, 2013 GM 823 castings 260CC intake runner 70CC chambers 2.165 intake valve 1.59 Exhaust valve Advertised flow rate is 320-330 cfm at .0600 lift. That is all I could come up with, hope it helps! Thanks . I'm glad they are 70cc , perfect for turbo . How's your project coming ? Quote Link to comment Share on other sites More sharing options...
Zfan1 Posted April 9, 2013 Share Posted April 9, 2013 Not fast enough LOL. I have the motor and transmission in, fuel system and cooling as well now I have to figure out headers. Spoke to the guy who made headers for the group buy, I can make then work with my auto I think but he now wants 950 a set, must think I am desperate! I have thought about going with a fender well type full length header that have 1 7/8 primaries. I am completely rewiring the Z so it will be a big pain in my A-- but worth it I think. Mike Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted April 9, 2013 Share Posted April 9, 2013 Wfrits911 made his own headers from a kit and they look great. Give him a pm for advice. Quote Link to comment Share on other sites More sharing options...
Domzs Posted April 9, 2013 Author Share Posted April 9, 2013 Not fast enough LOL. I have the motor and transmission in, fuel system and cooling as well now I have to figure out headers. Spoke to the guy who made headers for the group buy, I can make then work with my auto I think but he now wants 950 a set, must think I am desperate! I have thought about going with a fender well type full length header that have 1 7/8 primaries. I am completely rewiring the Z so it will be a big pain in my A-- but worth it I think. Mike Don't see how full length can work with an auto . I'm runninng JTR in mine , they seem to be pretty good . Quote Link to comment Share on other sites More sharing options...
Zfan1 Posted April 9, 2013 Share Posted April 9, 2013 If there is a will there is a way....LOL Quote Link to comment Share on other sites More sharing options...
Domzs Posted April 10, 2013 Author Share Posted April 10, 2013 LOL . Nothing a BFH won't fix , right ? Quote Link to comment Share on other sites More sharing options...
Zfan1 Posted April 10, 2013 Share Posted April 10, 2013 I did run a set of hooker long tubes (1 5/8" x 2 1/2") in my car with a 385 sbc/700R4combo, that is what I pulled out to upgrade to this LSX set up. I cut the ears off my 4L80E trans case and it fit with no problems, just clearanced for the plug on the drivers side. Quote Link to comment Share on other sites More sharing options...
mattd428 Posted April 10, 2013 Share Posted April 10, 2013 Yes , it does . 98 are junks . LOL thats not nice dom. i might throw a fit now lol Quote Link to comment Share on other sites More sharing options...
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