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-   General Q & A (https://www.offshoreonly.com/forums/general-q-20/)
-   -   454 vs 496 Manifolds and Risers (https://www.offshoreonly.com/forums/general-q/260951-454-vs-496-manifolds-risers.html)

Warrior II 09-01-2011 06:47 AM
Are all 496 manifolds and risers the dry system?

Warrior II 09-01-2011 01:04 PM
That is, wet joint to dry joint.

Knot 4 Me 09-01-2011 01:19 PM
Originally Posted by Warrior II (Post 3493918)
That is, wet joint to dry joint.
Yes. Dry joint between the manifold and riser.

Warrior II 09-01-2011 10:37 PM
Would going from a wet joint to a dry joint make it run hotter?

f_inscreenname 09-01-2011 11:03 PM
Just install them.
http://www.supernova19.com/ebc0d8a0.jpg

MIE 340 stroked into a 496. Simple bolt on and run.

JBravo 09-02-2011 10:06 AM
How about from a 2004 496HO "closed cooling" to a 1996 454 7.4L?? I have read all thee above. Should bolt rtg up.

Thanks, John

Budman II 09-02-2011 11:23 AM
Originally Posted by HTRDLNCN (Post 3492120)
we switched from merc 454 stockers to the 496 manifolds on a 454 Mag and had to change absolutely nothing, didnt have to change hoses,drill holes, make holes bigger, zero,it was a straight up swap..
Yes the outlet is a bit angled down but nothing the exhaust hose cant handle.
Did you notice any performance improvements? Even if no change, however, just going to the dry joint design and the weight savings would be worth it, IMO.

TDSracing 09-02-2011 08:26 PM
Hmmm might be worth the fact you cab remove the valve covers to fix leaks. Mine can't......well on three, one is newer and stands off a bit.


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