Need advise on building a 383 ls1
Thread Starter
Teching In
Joined: Jun 2008
Posts: 6
Likes: 0
From: odessa, tx
Need advise on building a 383 ls1 I have a rebuilt stock ls1 short block that I wanted to throw into my formula since I blew the last one due to water getting sucked in through my turbo
, I was originally planning on dropping the stock block in but I've decided to build a 383 since the rebuild is out of the car. I've already priced a rotating assembly from eagle for the build and plan on running a s/c-turbo cam from edelbrock. I'm also needing to know how much to bore the cylinders for the build, what heads,intake,tb,valvetrain etc..to run with the build. I will still be running my sts kit with this build so any advise and help I can get will be greatly appreciated.
, I was originally planning on dropping the stock block in but I've decided to build a 383 since the rebuild is out of the car. I've already priced a rotating assembly from eagle for the build and plan on running a s/c-turbo cam from edelbrock. I'm also needing to know how much to bore the cylinders for the build, what heads,intake,tb,valvetrain etc..to run with the build. I will still be running my sts kit with this build so any advise and help I can get will be greatly appreciated. 
TECH Senior Member
Joined: Feb 2009
Posts: 5,445
Likes: 4
you can hone the ls1 block out to 3.908.get a cam from the same place you got the turbo kit.or consider a custom cam from Patrick-G. look at some trick flow 220cc cast heads,good flow good price.you can find a used BBK and TB in the used parts section for $550 or less..get custom push rods ,use a adjustable push rod checker to determine the proper length.get some compcam trunnion bearing for you stock rockers.
