Neither GM nor SLP produce those manifolds any longer, but we were able to find a used example in excellent condition when fellow F-body owner Steve Quinn posted his SLP-modified LS6 intake ...

In the first installment, the stock LS1 intake manifold was removed, and the SLP Performance-sourced LS6 intake manifold was prepared for installation by transferring-among other items-the MAP ...

1999 Chevy Camaro Street Legal Cylinder Head, Camshaft & Intake Manifold Upgrades - Bookin' By The Book, Part 4. Fifty-State-Legal Head & Cam Setup Unleashes Dozens Of LS1 Ponies.

SLP previously conducted a similar swap on its engine dyno using another iron block ZL402 equipped with the AFR/SLP heads, but that had an LS6 intake and a soon-to-be-released 224/228 duration ...