The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Exhaust manifold swap

**truckster** · 09-16-2020, 11:48 AM

I bought some exhaust tubing from JEGS. I just got a couple of curved pieces and a straight piece and welded them in place. Since I'm not planning on putting the headers back on, I just cut the collector where it was the same width (2 1/2") as my new exhaust tubing.

And Matt is correct - there's no break-in required for a roller cam. Just drive it somewhat conservatively for the first 500 miles so the rings can seat and you'll be good.

09-16-2020, 11:48 AM	#3
truckster Senior Member Join Date: Jan 2001 Location: Orem, Utah Posts: 7,798	Re: Exhaust manifold swap - need help to solve a gap I bought some exhaust tubing from JEGS. I just got a couple of curved pieces and a straight piece and welded them in place. Since I'm not planning on putting the headers back on, I just cut the collector where it was the same width (2 1/2") as my new exhaust tubing. And Matt is correct - there's no break-in required for a roller cam. Just drive it somewhat conservatively for the first 500 miles so the rings can seat and you'll be good. Attached Images __________________ I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson