exhaust question

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02-16-2009 | 01:39 PM

#11

drpete3

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Joined: Sep 2007

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From: Gaylord, Mi

Quote:

Originally Posted by Recycle Perf

Got 3 sets, $400.00 for aluminum (1 set avail), $300.00 for cast iron (2 sets avail). All sets are low hour take-offs, no salt water.

Ok I am putting my engine back together with 425 hp. I am looking for new manifolds (take offs) anyone have some? Any sugeestions about whats already out there or what I should look for? replacing stock manifolds.

02-16-2009 | 01:44 PM

#12

Griff

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Joined: Oct 2000

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From: Omaha/LOTO

Have you called Recycle Perf???

Depending on your cam, you may need to use something with longer risers to prevent reversion.

02-16-2009 | 08:03 PM

#13

Sledge Hammer

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Joined: Nov 2008

Posts: 236

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From: Plover, WI

Quote:

Originally Posted by redcorvetteman3

Was wondering about a exhaust upgrade for my engines. I was considering the alm 496 manifolds, would there be any trq. or hp gain over stock iron manifolds? I have 496(stroked 454) dart pro 1 310cc alm.heads edelbrock rpm intake,hyd.roller, 750 marine demons with merc. stock wet exhaust with accesseries it dynoed at 600 trq 500 hp. Should I consider aftermarket , or the 496s and what should I expect to gain? thanks Dan

I think you definately would gain with a different exhaust set up. If you are interested I have a set of EMI Thunders set up for silent choice. $900. Silent choice system, if you don't have it $250.

02-17-2009 | 05:13 AM

#14

drpete3

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From: Gaylord, Mi

Quote:

Originally Posted by Griff

Have you called Recycle Perf???

Depending on your cam, you may need to use something with longer risers to prevent reversion.

No I havnt called them but I looked at thier page and want opinions aobut what they have. they have a mercruiser high perf manifolds and one other..i ofrget what that one is.

are theses any good or should I look around more?

02-17-2009 | 03:16 PM

#15

deboatmon

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Joined: Oct 2000

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From: Knoxville,TN, USA

Exhaust

Last edited by deboatmon; 02-17-2009 at 03:18 PM. Reason: entered into wrong post somehow

03-08-2009 | 12:12 PM

#16

scarab@kuwait

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Joined: Mar 2009

Posts: 7

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From: kuwait

Silencer Exhaust

Dears,

I own a 29' scarab with twin engines 5.7 mag Mercruiser. I feed up with my silencer exhaust and no speed (( only 66 Mile )) !!
Can i change the silencer exhaust and but some lovely sound??

I need advise please,,