Edlebrock manifold water ports
 

Just received my performer rpm manifold and noticed this has no rear cross over water port runners, is this going to cause a problem for a daily driver? And why did they leave out the rear cross over ports? won't this cause the car to run hotter?

Re: Edlebrock manifold water ports
 

It will be fine, the early 289 and 302's dont use a rear crossover.

Re: Edlebrock manifold water ports
 

As Dark Knight said, "It's normal". Most manifolds don't have the rear cross over.

Re: Edlebrock manifold water ports
 

I’m sure you guys are right, but then why do the heads have the rear ports or runners for water flow?

Re: Edlebrock manifold water ports
 

So they can go on either side of the engine :D
Otherwise you'd need left and right specific heads...
The crossover is used in later engines for more temp oriented switches..