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01-17-2014, 12:47 PM

#41

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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

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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

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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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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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370's and 400 cyclones did have iron manifolds

01-17-2014, 08:19 PM

#46

MILD THUNDER

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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

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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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