Rebuild advice plz

[ryusinski]

Hello all,

New to the forum but have had a banshee for 10 years now. I used to drag race and built up a 421 cub and I have not been able to race in a few years. Banshee has done quite a bit of sitting around. I am going to trail ride a lot this year and I'm going to do a fresh rebuild on it for the season. Problem is I have 21cc domes and I will be running pump gas on it now instead of race fuel. I want to get different domes. What size should night run with 93 octane? Any benefit to the custom made domes for the pro design coolhead? Also I am wondering what thickness of base gasket I should get for when I do the squish band test?

Little more info on my build in case this helps:

Wiseco pistons (68mm)

Cub cylinders (port work done stage 2)

4mil hot crank

Pro design coolhead

 

Any help would be apreciate

 

Thanks

[trickedcarbine]

Pick the base gasket that puts the ports in the best possible location in relation to the piston's crown edge. Lots of cubs with .020 base gaskets.

Figure all that out before having new domes made. That way you can have the domes cut to spec and have a proper squish. For pump gas I'd imagine you'll get about 23-24cc domes.

[ryusinski]

Ok thanks. So I can start with the .020 base gasket and whoever I have make the domes can get the squish right just based on that gasket thickness? Yeah I had someone else tell me 23cc as well so that seems to be the ticket so far. I can just add a little octane booster when it's super hot out.

[trickedcarbine]

No. No octane booster. Just run the right parts with the right fuel. It's that simple.

[ryusinski]

Well I'm going to just was going to use it as a precaution. Is it bad or something?

[ryusinski]

Will do thanks. What company do you recommend to have domes made?

[trickedcarbine]

Driveline or Noss Machine