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Cal-look/High Performance => Pure racing => Topic started by: leec on August 30, 2023, 00:33:45 am



Title: Can this head chamber be modded for more CC?
Post by: leec on August 30, 2023, 00:33:45 am
Hi all,

It’s late, I am over thinking and this may be total rubbish, but I have a pair of Comp eliminator heads that have a 33 cc chamber. Originally I wanted them for a high compression ratio N/A motor but now have plans to go turbo. Could my chambers be modified to gain cc by unshrouding the valves more? Thanks in advance!
Lee



Title: Re: Can this head chamber be modded for more CC?
Post by: PPRMicke on August 30, 2023, 08:27:35 am
when the chamber is so small and you have to increase to around 65 cc, there is too little material so it wants to crack
/// Micke


Title: Re: Can this head chamber be modded for more CC?
Post by: mikko k on August 30, 2023, 09:29:33 am
You can make those chambers a little bigger. But you will need pistons that have chambers also.

Make those heads first, then you know how big they will be and then order suitable pistons.


Title: Re: Can this head chamber be modded for more CC?
Post by: leec on August 31, 2023, 12:13:44 pm
Thank you both for the replies
Lee


Title: Re: Can this head chamber be modded for more CC?
Post by: Peter on September 15, 2023, 15:32:38 pm
Can't you weld the heads and flycut them again?


Title: Re: Can this head chamber be modded for more CC?
Post by: mikko k on September 15, 2023, 19:08:28 pm
Can't you weld the heads and flycut them again?

That much welding takes hours of work. And after that, new valve seats because they get too much heat.

Welding doesn’t make any sense. Heads will be really expensive..