Quote:
Originally Posted by avman
Thanks to this forum, this "Mopar guy" learned fairly early on that the cast iron exhaust manifolds on our 421 are Ram Air 2 manifolds.
|
RAM AIR II exhaust manifolds are Round Port Manifolds which will not work on "D-Port" 1965 cylinder heads.
In 1967, Pontiac came out with the first "D-port" "Ram Air" manifolds for the GTO.
So you have 1967 "Ram Air D-port Manifolds"
You have the Round Port 1st gen heads which had the so called RAM AIR II exhaust manifolds.
You had the Ram Air IV exhaust manifolds, The RA-V exhaust manifolds, and the 455 SD manifolds.
None of the Round Port GTO style manifolds will fit on a 1965 "D-Port" head.
So not sure who told you, that you have RAM AIR II exhaust manifolds on your 65 GTO with 1965 Heads.
Tom V.
Sorry to hear about your 1965 cast iron Tri-Power Intake crack issue.