I've been using cheapo autozone rubber vaccum caps to cap some unused vacc nipples..but these peaces of sh*t are dry rotting in a matter of several months.

Is there a better alternative? Something that will last a bit longer? Better rubber, or silicone vacc caps? I'm not interested in using JB weld or anything permanent like that.
-a

 

http://www.mcmaster.com/

 

which are the vacuum caps? the small thin ones? I use silicone... the only place i know is samco.com or hks.

I had a similar question about this except mine was in relation to "where can i exactly use silicone" but meh~ not like im any help anyways. Good luck!

 

Which vacuum caps from autozone are you using? The standard black rubber or the colored ones from the performance isle ( the one with all the chrome stuff for V8s)?

 

The regular black rubber ones.
-a

 

Go with the colored ones ( i think they are silicone) at autozone. The package has a few different sizes and they last along time.

 

got mine form NAPA and never had a problem with them dry rotting..
just cheap ol black ones to

 

I got the cheap black ones atm. When I send it to Kevin or Kahren, they can put on the nice caps .

 

The cheap rubber vacuum caps aren't made to stand up to the heat of our engines. Maybe with a heat wrapped header they could... but I know with my stock manifold they go bad quick . I just had to replace 3 with under 2,000 miles on them.