LS3 valve relief question
Thread Starter
Launching!
Joined: Aug 2008
Posts: 253
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LS3 valve relief question Building a 408 stroker with a 2003 LQ4 block. About to order the rotating assembly from texas speed. I have LS3 heads for the build and was going to order the Wiesco 4.030" -8cc pistons. Part number is 10-K394X3. Does anyone know if these wiesco piston's will work with LS3 head's intake valve? One more quick question to double check my math. I'm shooting for a compression ratio of 10.8:1. I'm ordering .040" head gaskets assuming pistons are .005 out of the hole with 70cc heads and the 4" stroke. And of course the -8cc pistons. I appreciate anyones opinions before I drop $2300 for the rotating assembly!
Thanks!
Thanks!
Thread Starter
Launching!
Joined: Aug 2008
Posts: 253
Likes: 0
Thanks John, i'll be ordering a rotating assembly next week then! I just rounded 10.78:1 to 10.8:1 if thats the same number you got. Either way wanted to keep it under 11:1 due to running a carb with 91 octane. And keep DCR at 8.5:1.
