I went to the MAC web site and they don't list these headers. I've seen them talked about in the advanced section. Anyone have a part number or anything ? Are they a LT design and do they come coated ?

 

how much power are you pushing man?
and in what rpms?
those headers definately have big primaries and are probably meant for some "bigger" engines

 

looking in their catalog, it only shows 1 5/8 headers for lt1....... ls1 has 1 3/4...

 

The headers would be used on a 383 with serious HP and a 400 shot direct port NOS. Dang, I did a search and all before I made this post because I remember reading about them along with the Dynatech 1 7/8. I want to stay away from the Dynatech and use the MACs.

Since this is back to the top again, anyone have a clue what the part number is by chance ? Or else I guess I'll just have to contact them.

 

You'll find the Dynatech headers on a few websites, just as I did when the subject of 1-7/8" headers for LT1 came up. I found out through another member (Fastfatboy) that a call to Dynatech reassured him that they're not making the headers anymore.

Soooo, the other option is to use the Hedman header. If you do a search for it, you'll find some posts that tell ya what you'll need to modify to make them work.

Good luck.

-Mindgame

 

Thanks Mindgame, it was Hedman I was after and not MAC. for some reason I got them confussed

Sry if I had you looking long for non existant **** n2ceptor

 

sweet dude
just wondering if you were gonna make enough power to use those kind of headers