Best option for 5.7 Mag exhaust replacment?
#1
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Best option for 5.7 Mag exhaust replacment?
Hey Guys,
I've got a 1990 Scarab 21' with a 5.7 Mag. I've noticed a small crack in the water jacket of one of the exhaust manifolds, so I'm looking to replace the set. Does anyone have any experience with the cheap re-pops out there?
Thanks
-Rob
I've got a 1990 Scarab 21' with a 5.7 Mag. I've noticed a small crack in the water jacket of one of the exhaust manifolds, so I'm looking to replace the set. Does anyone have any experience with the cheap re-pops out there?
Thanks
-Rob
#2
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try this...
http://www.perfprotech.com/store/pro...-NS,75402.aspx
i'd do the cheap manifolds, but go with imco or another quality ss riser...
http://www.perfprotech.com/store/pro...-NS,75402.aspx
i'd do the cheap manifolds, but go with imco or another quality ss riser...
#5
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I have used GLM aluminum manifolds with very good results. The internal passages are a split design (separating the exhaust pulses) and the aluminum shaves about 50 lbs off the stern. I paired these these with a set of Hardin/IMCO stainless risers. Very good results... I have about $500 in the whole set up (I bought the risers used).
Tom
Tom
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Thanks for the ideas guys!
I think I'm going to end up picking up some factory Merc manifolds.
I see 2 options, ceramic or E-coat.
Merc's site says Ceramic for salt, and E-coat for fresh, is this correct?
Thanks
-Rob
I think I'm going to end up picking up some factory Merc manifolds.
I see 2 options, ceramic or E-coat.
Merc's site says Ceramic for salt, and E-coat for fresh, is this correct?
Thanks
-Rob
#8
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Dennis Moore (Small Block and Big Block Marine Performance book author) is behind the design on these.
I have a new cam from RMBuilder going in this weekend. Hoping to add another 800 RPM or so. The exhaust is more than capable of supporting it.
Hope this helps.
Tom