8.1l 540ci big block Yukon xl

8.1l intake. Before

After & before.

Building an 8.1l to a 540 ci stroker! Yes please! I included pictures of the intake! Typically you have to send these out and wait for it to come back but not with us! A long days work and the intake is ready to flow a lot more air, and make more power!! Can't wait for Dyno day.