Intake size?

[pennsylvaniabo]

Hey guys I a, going to build an intercooler setup and making a custom intake hat. I think from what i have read that i need a 5.125" ID tube.

But those of you with motors that are torn down, would someone be able to measure the ID and OD of the intake hat lip? I dont feel like tearing my whole thing apart to measure.

 

[racer30]

I got three manifolds here and they all measure just 5'' across the top with aprox 1/4 wide gasket surface, the casting is a little ruff around the inside but it measures 4 5/8" inches inside the neck of the opening, i think I will clean this up on the the one I put on my engine, I have a stock snail that I want to modify to have a 3" fitting for my intercooler. What size tubes are you gonna run.

 

[pennsylvaniabo]

tube will be 3" and i have a piece of pipe that is 6" OD and 5.375" ID. The would then be adapted to the intercooler pipes....

 

[racer30]

my intercooler is off a 06 dodge, my engine is going in a rear engine motorhome so i have lots of room to plumb it. It will be mounted on the side of the engine bay with a big fan pushing cool air through from outside.

 

[88beast]

ya a gasser carb spacer fits thats how i did my aircleaner
id stick with 5.125 to give some wiggle room
also just take the snail shell off and slide it on or find a na truck to try it on
the best solution is to try it and make sure
i spend half my fab time trying stuff even as stupid as it is
i spent an hr deciding where to mount my air compressor in my toolbox just to make sure i have everything covered

 

[pennsylvaniabo]

Bumping this up. I need a new o-ring for my intake hat that is a little thicker than stock. This is what I have found from McMaster-carr.

Any suggestions?

 

[icanfixall]

I would use the square o-ring stuff. I even would buy the bulk square stuff and make my own. Maybe make them for others too. Cottage industry right there... Who else is makeing them these days.. Like me... I filled the gap with the timing meter rental program because nobody was offering to time our rigs. Everybody wins too.

 

[OLDBULL8]

I've made 100's of O'rings all different sizes over the years, easy to do. Single edge razor, instant glue and anything V shaped.
Cut to length as square as possible, a dab of glue, place in the V and push the ends together and hold for about 15 seconds. With a kit from HF, you can take several O'rings and glue them together for large circle ones. That's for Buna N rings. Viton is a whole new thing, need the special glue.

 

[Dieselcrawler]

just FYI, i found out that a center cap off a 8 lug wheel fits PERFECT over the intake inlet. most even have a nice oring on them too.

 

[pennsylvaniabo]

Yeh, maybe at some point I will get there. But would I want square, or round. And the buton or viton.

 

[Dejomo]

I've made 100's of O'rings all different sizes over the years, easy to do. Single edge razor, instant glue and anything V shaped.
Cut to length as square as possible, a dab of glue, place in the V and push the ends together and hold for about 15 seconds. With a kit from HF, you can take several O'rings and glue them together for large circle ones. That's for Buna N rings. Viton is a whole new thing, need the special glue.

I'll be damned...learned something new today!!!

 

[pennsylvaniabo]

Anyone have a suggestion on round or square. Or what material to get?