I need help understanding exhaust donut gasket.

[rchavez101]

I recently installed a carbed 350 in my 94 that had a 4.3 liter. I purchased headers that were a replacment on a 5.7 liter for a 94. I am going to use my stock exhaust from the 4.3. I heard that it should bolt up to the V8. I went earlier to buy new exhaust donuts. The size they sold me fits good on the y pipe but it does not fit on the header. I am assuming that the donut lip should fit inside of the hole on the header? Is this correct. The donut is to big to fit in the hole. I never payed much attention how it would fit on the V6. Basiclly should the donut stay on the manifold/header and then you put the y pipe on then bolt it? Thanks in advance. Pics would be appreciated if you have them.

[dragginmetal]

Originally Posted by rchavez101

I recently installed a carbed 350 in my 94 that had a 4.3 liter. I purchased headers that were a replacment on a 5.7 liter for a 94. I am going to use my stock exhaust from the 4.3. I heard that it should bolt up to the V8. I went earlier to buy new exhaust donuts. The size they sold me fits good on the y pipe but it does not fit on the header. I am assuming that the donut lip should fit inside of the hole on the header? Is this correct. The donut is to big to fit in the hole. I never payed much attention how it would fit on the V6. Basiclly should the donut stay on the manifold/header and then you put the y pipe on then bolt it? Thanks in advance. Pics would be appreciated if you have them.

Yes.


driver side. Looking at this pic, i see i need to tighten a bolt.

[rchavez101]

Originally Posted by dragginmetal

Yes.
Attachment 997867

driver side. Looking at this pic, i see i need to tighten a bolt.
Attachment 997868

Thanks Dragginmetal. I guess the issues I am having is the inside diameter on the header is smaller then the opening on the donut. I guess i will go over to napa to see if they have somthing that will fit.

[dragginmetal]

No problem. Good luck.

[rchavez101]

I went over to Napa to try to find a gasket. According to the guy behind the counter he said with the setup that I have I don't need a gasket. It's built into the header. I then came home to look up that info and that is what I am finding. For those of you that have used these headers is it true that you did not use a gasket? The link below is like the headers that I purchased.

http://www.ebay.com/itm/Stainless-St...9a7889&vxp=mtr

Sorry Dragginmetal I may have not given you enough info earlier about the collector on the header.

[dragginmetal]

No problem. All that matters is you get it fixed.

[kenbob87]

from the pics of your headers it looks like you do not need anything else just bolt them up and you should be in business

[bigblazerboy]

you dont use gaskets with the ball and socket style. i have the same headers no gasket used at y pipe. thats one of the main reasons i went with em

[rchavez101]

Originally Posted by bigblazerboy

you dont use gaskets with the ball and socket style. i have the same headers no gasket used at y pipe. thats one of the main reasons i went with em

Thanks. I wanted somone who had bought these to confirm that.

[bigblazerboy]

mine didnt bnolt up to y pipe though thought there were soposed to but guess not. i had to cut the pipe because it was spaced over too far like the headers tuck closer to block and i cant get the pipe to seal to y pipe worth a poo