Will GM 200r4 work with factory floor shift location?
Hi Trogdoor, I ran across a driver's side 340 manifold for a very good price but couldn't find a passenger's side so I went with the 2 1/8" Mag truck manifold (actually it's a little larger than 2 1/8"). Anyway, I went with the 340 for better flow and used the Mag truck for the same reason to get equal flow on both sides. I tried to fit a Mag truck manifold on the driver's side but there's no way with power steering. I've heard that some member's with manual steering have been able to use the mag truck on the driver's side with a little grinding and swapping to jorgenson type u-joint on the steering shaft.
I have sold two extra mag truck manifolds that I had and I still have two more extra (for the passenger's side). They work perfect on the passenger's side with plenty of clearance everywhere. The best part about the mag truck manifolds is that they don't warp like the stock 318 manifolds, they are thick and heavy duty. Here are some pics of some of the mag truck manifolds I've had. I haven't taken any pics of the other ones yet.
If you look at the last pic you can see (on the passenger's side) from underneath the giant exit hole on the mag truck manifold.
Remember, before going to the mag truck manifold, you have to have the more modern heads or heads that have the 360 exhaust ports (I'm running the 302 castings) which have the large port with the capped off smog hole. Anyway the mag truck manifolds have very large ports and you probably wouldn't be able to get them to seal on a regular 318 type head.
Treblig