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01-17-2014 | 12:47 PM

#41

Full Force

Gold Member

Joined: Oct 2005

Posts: 11,692

Likes: 217

From: Olmsted Falls,Ohio Marblehead,Oh

and sell around 40,000 when done for a profit lol

Quote:

Originally Posted by 315duramax

All great info. Thanks guys. I really want to do arnesons on this cause I haven't seen a cafe with surface drives before. Might be doing big motors in it but we'll see. I will be happy if I can get the boat to 65

01-17-2014 | 01:08 PM

#42

315duramax

Thread Starter

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Joined: Sep 2013

Posts: 1,652

Likes: 390

From: Syracuse Ny

Quote:

Originally Posted by jbraun2828

You want to put arneson's on a 60mph boat?

I just think arnesons are trick. It was a thought lol I'm not actually going to.. Just saying it would be cool if..

01-17-2014 | 02:07 PM

#43

Griff

Charter Member # 55

Joined: Oct 2000

Posts: 20,272

Likes: 2,512

From: Omaha/LOTO

Quote:

Originally Posted by motor

If I'm not mistaken ,the old 420 mercs had just regular cast iron crap for exhaust. Good exhaust and a cam swap will wake up a 420. Preferably hydraulic roller with true headers

They had Gil's and a Crane 132561 cam.

01-17-2014 | 05:59 PM

#44

motor

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Joined: Sep 2009

Posts: 918

Likes: 5

You are right,420 did run gil .I was thinking 370

Quote:

Originally Posted by lil red

420's had Gil exhaust.

01-17-2014 | 08:09 PM

#45

Unlimited jd

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Joined: Jul 2009

Posts: 8,527

Likes: 706

From: Taunton Ma

370's and 400 cyclones did have iron manifolds

01-17-2014 | 08:19 PM

#46

MILD THUNDER

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Joined: Jul 2004

Posts: 11,332

Likes: 73

From: chicago

For about one year, the 420s had a cast iron HIGH PERFORMANCE manifold system. It was HUGE. and HEAVY. There were 6 bolts holding the riser elbow to the manifold. They flowed well, but known to be leakers at the wet joint. Merc ditched them and went to Gil.

I had early 400HP Cyclones. They had 3 inch rear exit log manifolds. Later they switched to the standard center rise iron 4 inch style stuff on the 370's.

01-17-2014 | 08:27 PM

#47

glassdave

Neno the mind boggler

Joined: Sep 2001

Posts: 13,080

Likes: 320

From: toledo oh

Quote:

Originally Posted by 315duramax

I just think arnesons are trick. It was a thought lol I'm not actually going to.. Just saying it would be cool if..

I've got two complete asd6 installations on the shelf as well

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