Looky what I found...

[seacraftks]

One word AWSOME

[thehermit]

Dammit Gillie now you got me wanting one

strick

Yea...this boat is very cool

Gillie....remember seeing this?

You and Strick need to race

[Fr. Frank]

However when you look at this next picture the box looks like mine and you can almost bet that is a V-8 with those 2 exhaust outlets...Whats puzzling is that there literature never states a V-8






Hey but that's why we love the mystery so much.

That's definitely a V8. Even the 20' Seafari was offered with a V8 sterndrive.

BTW, those black protuberances on the transom? They're the Mercruiser "Silent Choice" mufflers for through-hull exhaust, only offered on V8's.

[McGillicuddy]

Yeah Hermit,
I do remember that. I think Denny sent me a hard copy. Is that done on some engineering software? Looks like the 21 may be a little more stable at rest, no?
But I think racing Strick would be a mistake. Looks like he's got that 25 dialed in. One slick rig! How about it,Doc? Any performance #'s yet from that sleeper Seafari?

I tell you walking across the bow made me wonder if the leading strake on Potters 23 wasn't added to limit the bow from rolling -kind of tipsy up there on the 21.

Fr Frank, Tell me more about hoppin' up a 230-250 ci L-6

Terry, I believe the 21 was offered with a V-8. The 1964 Merc Boat House Bulletin test were done with a MerCruiser "225" which was a 2 bbl GM 327 from '63-'67 and again '68-'69.

[Fr. Frank]

41 mph with only a 225? The 20' Seafari test in '72 with the OMC 225hp 350ci "stringer drive" only achieved 45 mph as tested. No specs on the OMC 245hp 350ci

The Seafari w/ the Merc 228, however reached 48 mph.

Here's a 4 bbl manifold for that 250 ci I6.
4bb manifold [image]http://app.ecwid.com/image/2712429?ownerid=149402[/image]

Here's another:
4bbl intake [image]http://www.cliffordperformance.net/Merchant2/graphics/00000001/42-4501wh 300.jpg[/image]
(space in address won't let pic appear. you have to paste the links)

Here's a really good cam kit. Claim is 30% more hp than stock with a minimum 450 cfm air intake. Tech tips on HotSix.com is a recommended 560-650 cfm carb set.
Chevy 194-230-250 272 Hyd Cam & Kit

For more good straight six performance parts, go to Stove Bolt Engine Co or

or Clifford Performance 4bbl intake

[strick]

You and Strick need to race

Gillies boat is a lot lighter then mine. I would get smoked. Still no numbers for the 25. Have not done a darn thing to it except take it fishing. Bill caught the first decent bass on it last Sunday. Still waiting to christen it with it's first sturgeon. I was starting to get lazy without a project to work on so I'm refinishing a 9 drawer dresser for my daughter. Gillie get us some in the water shots and a video.

strick

[Blue_Heron]

...Terry, I believe the 21 was offered with a V-8. The 1964 Merc Boat House Bulletin test were done with a MerCruiser "225" which was a 2 bbl GM 327 from '63-'67 and again '68-'69.

41 mph with a 225 HP small block and Terry's putting a 350 HP small block in his. I can't WAIT to see the performance numbers on that.
Dave

[Fr. Frank]

41 mph with a 225 HP small block and Terry's putting a 350 HP small block in his. I can't WAIT to see the performance numbers on that.
Dave

Me too.