I bolted on my Stealth Ram to my heads using 3/8" bolts as told and they are a hair smaller in diameter than the ones in there before. The 3/8" go in and grab, but I don't want to blow a gasket because they don't grab properly. Any ideas?

 

that's a weird one.... do you have a caliper to double check the bolts you bought? (case they might be 10mm or something..?)


do you mean the bolt seems to be a bit 'loose' in the threads? perhaps the new 3/8" bolts you bought have a looser thread fit?

 

loose, are they all the way in and just dont tighten? maybe try and use a washer

 

Loose as in it doesn't really feel as tight although its in its first few threads. Once its tightened down it feels tight, but its not the same size diameter as the previous bolt on there which concerns me. It is 3/8" though, fits in the header bolt holes perfectly as well.

 

Is the thread size of the new bolts the same as the old bolts?