Jstrong Posted August 18 Report Share Posted August 18 hey guys, I’m currently putting together a 421 serval with 68mm pistons just wondering if anyone out there has the same setup, what cc domes are perfect for 93 octane that provides the most compression. I currently have 24 cc 9deg domes ready to install. Before I tried to put 21 cc domes in there, but I’m guessing they were too small since the engine did not want to turn over. The top of the pistons were getting stuck in the domes Quote Link to comment Share on other sites More sharing options...
Tedder Posted August 19 Report Share Posted August 19 Pistons stuck in the domes? My 68 bore cubs with 115 rods use 573 series Blaster pistons as does my son's Serval Quote Link to comment Share on other sites More sharing options...
Jstrong Posted August 21 Author Report Share Posted August 21 Yes I also use blaster pistons. What domes are you running? Quote Link to comment Share on other sites More sharing options...
Tedder Posted August 22 Report Share Posted August 22 I honestly can't tell you on the 4mil. They're custom cut alcohol domes for 1/4 mile asphalt by Tim @ Titan Racing and have no markings. My 10 mil domes were cut by Dave Noss. One pair is 24 and the other 22cc. I'd recommend calling Dave (Noss Machine). He's a sponsor here and has been cutting domes forever. He'll fix you up on exactly what you need. Quote Link to comment Share on other sites More sharing options...
Dalton Posted September 1 Report Share Posted September 1 24cc is what I run in my 421 serval pump gas sea level. Quote Link to comment Share on other sites More sharing options...
ClaudeMachining Posted September 2 Report Share Posted September 2 hey guys, I’m currently putting together a 421 serval with 68mm pistons just wondering if anyone out there has the same setup, what cc domes are perfect for 93 octane that provides the most compression. I currently have 24 cc 9deg domes ready to install. Before I tried to put 21 cc domes in there, but I’m guessing they were too small since the engine did not want to turn over. The top of the pistons were getting stuck in the domesPut the 24cc and do squish and uccr test and report backEnvoyé de mon SM-S908W en utilisant Tapatalk Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.