2bseen Posted January 27, 2005 Report Share Posted January 27, 2005 They are 2.02/157 rev valves with double gold valve spring flowed about 296 and was special built from my SS. These heads are on the truck now and just set the new n/a track time at 13.46. They have about 3k miles on them. If you check their web site the prices are with their valves and spring not the rev valves and gold double spring. I am going bigger and will have my new heads in the next 2 weeks and have these ready to ship. They are $900 plus shipping. They are 72cc. Link to comment Share on other sites More sharing options...
adams2003 Posted January 27, 2005 Report Share Posted January 27, 2005 Any Idea of what your CR was with those heads? Link to comment Share on other sites More sharing options...
383ss Posted January 28, 2005 Report Share Posted January 28, 2005 can you give a complete flow sheet?? also, what cam are you running with them? what other mods? Link to comment Share on other sites More sharing options...
2bseen Posted January 28, 2005 Author Report Share Posted January 28, 2005 Should be factory 10.1 to 1. Link to comment Share on other sites More sharing options...
2bseen Posted January 28, 2005 Author Report Share Posted January 28, 2005 I have a custom cut comp cam, I can include one of these for $400. I am running a stall, headers, volant, cam, and efans. I will cut a cam by what mods you have. If anyone buys this and wants it installed and tuned I can get gomer to do this if you are close to north alabama. Link to comment Share on other sites More sharing options...
gomer Posted January 28, 2005 Report Share Posted January 28, 2005 If someone buys the heads from him and wants a cam, PM me with all your mods and we'll talk about your expectations and go from there. I'll post up the complete flow numbers for these heads a little later tonight. Compression ratio will be the stock 10:1. [email protected] Link to comment Share on other sites More sharing options...
adams2003 Posted January 28, 2005 Report Share Posted January 28, 2005 Im very interested in the heads. Would a better flowing head give me more or less boost? Or would it remain the same? Link to comment Share on other sites More sharing options...
BenKey Posted January 28, 2005 Report Share Posted January 28, 2005 Im very interested in the heads. Would a better flowing head give me more or less boost? Or would it remain the same? <{POST_SNAPBACK}> less boost , usually. but I think it could still equal more power. I assume these are 317 castings, since the lq9 and lq4 heads are identical? Link to comment Share on other sites More sharing options...
2bseen Posted January 28, 2005 Author Report Share Posted January 28, 2005 You would need less boost to make the same hp. Link to comment Share on other sites More sharing options...
j4nash Posted January 28, 2005 Report Share Posted January 28, 2005 what stall do you have and how much of a hp gain should we look to gain. Also how much of a difference is there between these and stock. Link to comment Share on other sites More sharing options...
2bseen Posted January 28, 2005 Author Report Share Posted January 28, 2005 About 35 to 45 hp up to 75 with a cam. I am using a ptc 3k stall Link to comment Share on other sites More sharing options...
BigTex Posted January 28, 2005 Report Share Posted January 28, 2005 Patriot usually uses 035 castings. They bought them in bulk a couple of years back. Stock CR of the LQ9 motor is 10.2:1. Don't quote me "GM says" numbers, do the math. Link to comment Share on other sites More sharing options...
fordsareslow Posted January 28, 2005 Report Share Posted January 28, 2005 How well would these do on a stock 5.3 motor? Would CR still be close to the same as on the LQ9? Link to comment Share on other sites More sharing options...
BigTex Posted January 28, 2005 Report Share Posted January 28, 2005 Actually these would be too big on a 5.3 unless you were supercharged. They would net you an 8.5:1 compression ratio on a 5.3 motor using stock gaskets. Link to comment Share on other sites More sharing options...
gomer Posted January 31, 2005 Report Share Posted January 31, 2005 Here are the flow numbers for the heads. 3.905 bore, radiused inlet, SF1200 bench, and a 1.75 pipe on the exhaust. They would flow slightly more on a 6.0's 4.0 inch bore. lift___intake___exhaust .100__ 70 cfm__ 66 c fm .200_ 138 cfm_ 122 cfm .300_ 200 cfm_ 162 cfm .400_ 241 cfm_ 203 cfm .500_ 277 cfm_ 227 cfm .550_ 289 cfm_ 229 cfm .600_ 304 cfm_ 235 cfm Link to comment Share on other sites More sharing options...
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