Installing LMC Exhaust

[elorenzof]

1970 K10, 350 engine. I am installing an LMC exhaust, and i have a probably newbie question. Do i bolt it directly to the exhaust manifold (OE ram horn style) with the "exhaust donut" or do i need these to bolt it to the exhaust manifold? any answers would be appreciated. I know on the 1963 corvette these are needed bolting to the factory exhaust manifolds.

[randy500]

You do need those inserts, otherwise the donuts will burn up pretty quick

[elorenzof]

Originally Posted by randy500

You do need those inserts, otherwise the donuts will burn up pretty quick

thank you for the reply. what are these called exactly and where do i get them?

[68Gold/white]

Originally Posted by randy500

You do need those inserts, otherwise the donuts will burn up pretty quick

X2, I had no source for the sleeves, years ago on my 283 in my 67 Bel Air. The sleeves will help the longevity of the donuts. You can also use some high temp Permatex ultra copper on the donut edges to help them seal.

Look'n good!!!

[randy500]

I dont know what they are called. I suspect they are available from the corvette parts suppliers, ecklers, corvette central, etc

Found these
https://www.motorcityvettes.com/exha...ve-2-1956-1982

[54blackhornet]

Can you comment on the kit itself ? Duals ? Coil or leafs ? Over the axel ? Thanks I’m interested In going duals but my local shop wants crazy money so thinking of doing it myself...