Thoughts on 496 HO and other engines in stock form?

Reply Subscribe

Thread Tools

05-15-2017 | 10:25 PM

#21

thisistank

Registered

Joined: Aug 2001

Posts: 14,620

Likes: 4,610

From: Channel Islands, So. Cal.

Quote:

Originally Posted by SB

Silly people on a performance forum.

Don't you know.

Stock Sucks.

sucks.....Less money out of your wallet for fuel and repairs!

05-16-2017 | 05:35 AM

#22

Indy

Member #154

Joined: Oct 2000

Posts: 8,008

Likes: 1,088

From: SW CT & Long Island Sound

Quote:

Originally Posted by SB

Silly people on a performance forum.

Don't you know.

Stock Sucks.

Agree, I couldn't stand it when my boat ran beautifully all summer long.

05-16-2017 | 05:46 AM

#23

JRider

Registered

Joined: Jul 2007

Posts: 2,640

Likes: 14

From: MI

Quote:

Originally Posted by Keith Atlanta

Actually, the 496 is cheap to maintain. But if you modify it, you risk some problems... Leave it alone and they are good for 800-1000 hours. Just do regular oil changes, dont run it at 5000 RPM all the time and you are good to go.

FWIW we ran twin 496s WFO for poker runs, only giving them a rest for card stops. They actually were chirping every time the boat started to surface the props, they were on the hairy edge of the limiter. Only problem with them was the fuel pumps do not hold up to ethanol.

Last edited by JRider; 05-16-2017 at 05:51 AM.

05-16-2017 | 05:50 AM

#24

thirdchildhood

Registered

Joined: Oct 2005

Posts: 5,825

Likes: 612

From: Clarkston, Michigan

Quote:

Originally Posted by Ryan00TJ

Merc states in the owners manual to not run past 3/4 throttle for extended periods. FWIW... I love mine. It's been a extremely reliable engine since bought in 14'. I've had to replace one IAC valve in that time. Maintenance is key to these. I also recommend owning a scan tool and knowing how to use and understand it.

"Extended periods" is a vague term. Could mean 5 hours . . . .

05-16-2017 | 06:46 AM

#25

Sydwayz

Forum Regulator

Joined: May 2001

Posts: 24,214

Likes: 1,612

From: Worldwide

Quote:

Originally Posted by SB

Silly people on a performance forum.

Don't you know.

Stock Sucks.

I much prefer to go BOATING on the weekends, not WRENCHING.

05-16-2017 | 09:14 AM

#26

outonsafari

Registered

Joined: May 2009

Posts: 1,942

Likes: 527

thank you

05-16-2017 | 09:34 AM

#27

LAriverratt

Platinum Member

Joined: Jan 2009

Posts: 3,511

Likes: 24

From: Springfield, Louisiana

on our 32 sunsation we have 400+ hours of trouble free...TOUBLE FREE running....change oil in drives and engines on or before 75 hours. change water impellers every season...like was stated above, if you like boating and not wrenching you can't beat these engines IMO.

05-16-2017 | 10:15 AM

#28

Ryan00TJ

Registered

Joined: Nov 2006

Posts: 1,313

Likes: 153

From: Tygart Lake, WV

Quote:

Originally Posted by thirdchildhood

"Extended periods" is a vague term. Could mean 5 hours . . . .

I agree. I run it hard and it likes it. Plan to add the Raylar HO525 kit over the winter. Interested to see how it likes an extra 100hp!

https://youtu.be/-wBZgVsyNlI

05-16-2017 | 10:35 AM

#29

thirdchildhood

Registered

Joined: Oct 2005

Posts: 5,825

Likes: 612

From: Clarkston, Michigan

Quote:

Originally Posted by Ryan00TJ

I agree. I run it hard and it likes it. Plan to add the Raylar HO525 kit over the winter. Interested to see how it likes an extra 100hp!

https://youtu.be/-wBZgVsyNlI

The coolest part of that kit was the sheet-metal intake that they stopped making.