andylmusic76

i bought a used set of 906 vortecs. now i'm trying to find headers. are these vortecs straight or angled?

MN80Vette

I don't know what "906" Vortec heads are, but whatever Vortec heads are on my GM 350 HO crate engine have straight plugs.



I had major plug clearance problems on the block hugger headers I had before the Dynomax headers in this picture. I had to remove the headers to get all the plugs out and had to dimple the headers to get clearance for the boots. I can get all 8 plugs out now and didn't have to dimple the headers either. I also had engine mount problem (melting) with block huggers too. For all these reasons, I went with asymetric headers vs. symetrical on either side of cylinders 4-6 and 3-5.

my mach 5

I thought all vortecs are straight plug.

Durango_Boy

Straight. Most all headers will fit fine but you'll get better luck with plug clearance by buying the short plugs instead of specific headers.

chvet73

I agree on the short plugs. Worked for me

MN80Vette

Huh? Short plugs for a Vortec head? Exactly which short plugs fit? I didn't think there were any short plugs for GM Vortec heads.

Rdavis

Also not mentioned yet, vortec plugs have been relocated slightly closer to the exhaust ports than standard strait plug sbc heads. This could be the cause of some header headaches.