It moves the pipes around. My hookers fit but the slight move at the head changed things and spots on top that were tight weren't and I had to ding one of my wrap around the frame pipes. With the taller valve covers and valve cover rails I had to move the master cylinder booster to the side when I adjusted the valves. About 2 years of that and I sold the heads off. Went back to worked iron 781 oval ports. Enough of that ramble..
Good luck on your quest. If a pipe is only slightly touching you can ding them. If hitting badly it is possible you received a bad set or misboxed set. Is there a part number stamped in the header? Walt http://www.personal.kent.edu/~wbainey/CHEVELLE.htm -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of william yetman Sent: Monday, March 19, 2007 5:15 PM To: The Chevelle Mailing List Subject: Re: [Chevelle-list] big block headers yes they are raised, but i talked to worldcastings and they said it was not enough to make a difference. ----- Original Message ----- From: "BAINEY, WALTER" <[EMAIL PROTECTED]> To: "The Chevelle Mailing List" <[email protected]> Sent: Sunday, March 18, 2007 8:49 PM Subject: Re: [Chevelle-list] big block headers Do the Merlin heads you are running have raised exhaust ports? I ran some Brodix heads that created a couple issues due to the Exhaust port being raised. Hopefully Jimmy C's pics may shed some light and help you. Walt -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of william yetman Sent: Sunday, March 18, 2007 9:17 PM To: The Chevelle Mailing List Subject: [Chevelle-list] big block headers Hello again, I have a 72 chevelle ss 454 BB I tried to put my Headman headers (part # 66002)on and found they hit the airconditioning box. I have Merlin heads, they have D shaped exhaust ports, so I need the primary tubes to be at least 2". Does anybody know what will fit? They do not need to be Headman although they look great! Thanks Bill
