Well, I searched until I was sick of searching. I know this topic has been covered over the years but I can't find a thing about it. I can find all sorts about their 1 5/8 but nothing about the 1 3/4. According to their website these are a literal stock replacement (apart from the mid pipe obviously) and are supposed to drop right in place without having to swap to a solid steering shaft or smaller starter/etc. Anyone have any experience with them?
I've been running these old 1 5/8 Mac's for about 15 years now, I just couldn't stomach the idea of bolting those nasty rusty turds up to my new heads and I'm sick of dealing with individual flanges and them warping. It also didn't make sense to get good flowing heads just to bottleneck them with crappy headers that have tiny primary inlets.
I've been running these old 1 5/8 Mac's for about 15 years now, I just couldn't stomach the idea of bolting those nasty rusty turds up to my new heads and I'm sick of dealing with individual flanges and them warping. It also didn't make sense to get good flowing heads just to bottleneck them with crappy headers that have tiny primary inlets.