79 Scarab 300 resto
#292
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Joined: Jul 2015
Posts: 4
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Just out of curiosity, what kind of speeds are you getting out of it? I just bought my 1979 scarab 300 this month, just got the engines running, it has twin 420 horsepower performance series 454s
And over the next year or 2 I plan on taking on a restoration a lot like yours
And over the next year or 2 I plan on taking on a restoration a lot like yours
#293
Thank you 90viper!
Nice boat geojojo. We were running plain mercruiser 330hp bottom ends with the factory large oval port heads with 2.19 intake(I've mistakenly called them other sizes, I couldn't remember) and 1.88 exhaust valves. Edlebrock air gap intakes and holley 750's, factory exhaust, and we were seeing 63-65mph at WOT turning 4400-4500 rpms.
In other news, engine guy has the rotating assemblies off to the balancer. More info here...
http://www.offshoreonly.com/forums/d...eciated-4.html
Nice boat geojojo. We were running plain mercruiser 330hp bottom ends with the factory large oval port heads with 2.19 intake(I've mistakenly called them other sizes, I couldn't remember) and 1.88 exhaust valves. Edlebrock air gap intakes and holley 750's, factory exhaust, and we were seeing 63-65mph at WOT turning 4400-4500 rpms.
In other news, engine guy has the rotating assemblies off to the balancer. More info here...
http://www.offshoreonly.com/forums/d...eciated-4.html
Last edited by hblair; 07-14-2015 at 06:42 PM.
#294
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Joined: Jul 2015
Posts: 4
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Here's the engine bay on mine, I just got the engines running after 8 years of sitting, check out those stainless manifolds!!! I'm still learning all about this boat and I'm not sure exactly how much power each engine is putting out, the engines put out 420 horsepower from the standard cams, but the previous owner installed different cams so they're putting out a little more then that
http://i.imgur.com/wElMClE.jpg
http://i.imgur.com/wElMClE.jpg
#295
#297
It was suggested to me to mount them to the transom. Not real sure yet.
We spent this evening checking how my Gil exhaust is gonna fit. I borrowed a 396 bare block and used my bad head to mount the exhaust. We're gonna have to get some wedges, and slot my outer (left port and right starboard) tailpipes prolly about 3/16" and clock them inward 1 1/2" at the rear to get them to point at my existing holes. I'd rather do this than have to recut the transom.
I took the k planes apart and got them primed. Hope to get them and the transom painted by Saturday. We'll see...
We spent this evening checking how my Gil exhaust is gonna fit. I borrowed a 396 bare block and used my bad head to mount the exhaust. We're gonna have to get some wedges, and slot my outer (left port and right starboard) tailpipes prolly about 3/16" and clock them inward 1 1/2" at the rear to get them to point at my existing holes. I'd rather do this than have to recut the transom.
I took the k planes apart and got them primed. Hope to get them and the transom painted by Saturday. We'll see...
#300
Got the K Planes painted and the transom finally painted. We decided to paint the engine accessories and exhaust manifolds, as well as the engines and probably intakes too. The manifolds powder coating was peeling pretty bad.
We're still waiting on the engines. My engine guy had some howards cams custom ground. They're not back yet. We're still waiting on them. We're supposed to go to the gulf this Thursday. We'll see how that goes...





We're still waiting on the engines. My engine guy had some howards cams custom ground. They're not back yet. We're still waiting on them. We're supposed to go to the gulf this Thursday. We'll see how that goes...














