Edlebrock manifold water ports

surfsup · 06-17-2006, 04:22 PM

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?

Dark Knight · 06-17-2006, 11:37 PM

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

Gearhead999 · 06-18-2006, 08:18 AM

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

surfsup · 06-18-2006, 08:49 AM

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

Dark Knight · 06-18-2006, 10:42 AM

So they can go on either side of the engine

Otherwise you'd need left and right specific heads...
The crossover is used in later engines for more temp oriented switches..

06-17-2006, 04:22 PM	#1
surfsup Registered Member Join Date: Sep 2004 Location: jersey Posts: 147	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?

06-17-2006, 11:37 PM	#2
Dark Knight Registered Member Join Date: Oct 1998 Location: Az Posts: 854	Re: Edlebrock manifold water ports It will be fine, the early 289 and 302's dont use a rear crossover. __________________ 84 convt,roller 302,AFR's, performer 3.55's, underdrives BBK shorties stock cam, 1.7's 13.58@102.84 and a '68 stang .. project 8 sec street car... 557 big block + N20 :-) http://members.cox.net/darkknight302/68nwrear.jpg

06-18-2006, 08:18 AM	#3
Gearhead999 Registered Member Join Date: Sep 1998 Location: Oviedo, FL Posts: 992	Re: Edlebrock manifold water ports As Dark Knight said, "It's normal". Most manifolds don't have the rear cross over. __________________ "Support our Troops" Dave 1968 Cougar 2004 Thunderbird 2007 F150 Harley-Davidson, SuperCrew 1986 LTD 1997 Ranger 1992 Honda Civic

06-18-2006, 08:49 AM	#4
surfsup Registered Member Join Date: Sep 2004 Location: jersey Posts: 147	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?

06-18-2006, 10:42 AM	#5
Dark Knight Registered Member Join Date: Oct 1998 Location: Az Posts: 854	Re: Edlebrock manifold water ports So they can go on either side of the engine Otherwise you'd need left and right specific heads... The crossover is used in later engines for more temp oriented switches.. __________________ 84 convt,roller 302,AFR's, performer 3.55's, underdrives BBK shorties stock cam, 1.7's 13.58@102.84 and a '68 stang .. project 8 sec street car... 557 big block + N20 :-) http://members.cox.net/darkknight302/68nwrear.jpg

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