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Can someone help me ID these C4 (supposedly) headers? I bought these off eBay over 20 years ago and was reassured that they would fit my LT1 equipped Corvette. Looking at them over the years, I’ve often wondered if they were actually LT1 headers. Well, A LOT of time has passed and I’m finally getting my rebuild up and going and dragged them out.
A little info. They’re obviously Magnaflow Performance ceramic coated long tubes. From what I can measure, they appear to have 1-5/8 or 1-3/4 primary tubes depending on how and where you measure, but thinking 1-5/8, feeding into 3” collectors. The passenger side (shown) has a split flange by the back tube that allows it to rotate and/ or slide back and forth for possible ease of installation and/ or adjustment. The driver’s side doesn’t have that- it’s a solid piece. I cannot find any info about these so I’m turning to the wise ones on here. Any help, part numbers, or general direction to look is greatly appreciated. Thanks.
Last edited by SCvetteman; Oct 2, 2024 at 05:04 PM.
Reason: More info
Thanks for the input and bump. Yeah, other than a couple differences in bungs and few other small things, they do look pretty similar to each other- even with the split flange. I’m not the expert on Magnaflow either, but again, I agree- I didn’t know they made C4 headers. They’re ceramic coated and appear to be unused and very well made. Here’s a picture of each.
Need C4 Header Identification Help!
