Aluminum SBC exhaust
#11
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bobl, was this on a stock 6.2? What is your opinion on the Revolutions (fit and quality)? Any idea on the weight savings? Sorry for all the questions but I respect your opinion from reading other threads of which you contributed. Got a 292 with twin 6.2's and contemplating an exhaust swap. Sorry for the hi-jack!
Chime-in as well pullmytrigger!
Chime-in as well pullmytrigger!
#12
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I checked my notes......the complete Rev marine manifold and riser wieghs 25 lbs.......cast iron merc wieghed 85 lbs!.....took 240lbs off the back of my boat.......no prob with the fit.....i found the instructions a little confusing (arnt they all) you dont need the polished accesory brackets you cant see them anyways........brass plugs instead of polished......pretty decent polish job........great value IMO......drop in replacement for stock Merc
#13
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with hp you guys are talking about you will need to be carefull about water revertion, the rev marine only offer a standard cast riser that will revert water for sure. I would look into some eddie marines with hp risers, cheaper isnt always better when your fixing a motor water got into. check with diamond performance they quoted me a great price on some for a big block.
Page down for the cut-away...
http://revolutionmarine.com/shopsite...bcexhaust.html
Last edited by 4mulafastech; 02-16-2008 at 11:48 AM.
#14
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Thought I would share this with you all...
I found this report on the web. Don't know anything about C-Tech Performance, but if this is an unbiased report the RM exhaust appears to deliver decent performance gains. This was on a 350, so we may see even greater gains with the slightly larger 6.2 (377ci) at 320HP stock.
http://www.c-techperformance.com/dow...comparison.pdf
I found this report on the web. Don't know anything about C-Tech Performance, but if this is an unbiased report the RM exhaust appears to deliver decent performance gains. This was on a 350, so we may see even greater gains with the slightly larger 6.2 (377ci) at 320HP stock.
http://www.c-techperformance.com/dow...comparison.pdf
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With all the reversion issues with higher hp SBC's whould it just be easier to run dry exhaust, or route my water dumps just inside the transom? Can you run aluminum dry without overheating problems?
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manifolds
Dry doesn't mean that the manifolds and risers are dry. Means that the water does not exit inside the exhaust chamber at any point, it exits out of a port on the outside of the transom on the exhaust pipe. Water never mixes with the exhaust gases.The manifolds have water running thru the water jackets. JOHN
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#18
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Thought I would share this with you all...
I found this report on the web. Don't know anything about C-Tech Performance, but if this is an unbiased report the RM exhaust appears to deliver decent performance gains. This was on a 350, so we may see even greater gains with the slightly larger 6.2 (377ci) at 320HP stock.
http://www.c-techperformance.com/dow...comparison.pdf
I found this report on the web. Don't know anything about C-Tech Performance, but if this is an unbiased report the RM exhaust appears to deliver decent performance gains. This was on a 350, so we may see even greater gains with the slightly larger 6.2 (377ci) at 320HP stock.
http://www.c-techperformance.com/dow...comparison.pdf
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Dry doesn't mean that the manifolds and risers are dry. Means that the water does not exit inside the exhaust chamber at any point, it exits out of a port on the outside of the transom on the exhaust pipe. Water never mixes with the exhaust gases.The manifolds have water running thru the water jackets. JOHN