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Older 5.7 HI-Perf EFI Horsepower

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Old 03-03-2011 | 08:39 AM
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Default Older 5.7 HI-Perf EFI Horsepower

I'm looking at a boat that has these engines. Does anyone know the spec.'s? Thanks
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Old 03-03-2011 | 08:41 AM
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I think it was 250 or 260hp
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Old 03-03-2011 | 10:43 AM
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320hp. I've got one of those old intakes on my shelf
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Old 03-03-2011 | 11:05 AM
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Originally Posted by CIG3
I'm looking at a boat that has these engines. Does anyone know the spec.'s? Thanks

That pic sure looks familiar.
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Old 03-03-2011 | 11:16 AM
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Originally Posted by HaxbySpeed
320hp. I've got one of those old intakes on my shelf
+1..if i remember correctly their was a issue with injector angle and the injector spray would do something to the valves??
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Old 03-03-2011 | 11:30 AM
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Thanks for the photos you sent last night. Just doing a little research. Thanks

A.Bloom


Originally Posted by 28cigarettess
That pic sure looks familiar.
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Old 03-03-2011 | 01:09 PM
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Originally Posted by CIG3
Thanks for the photos you sent last night. Just doing a little research. Thanks

A.Bloom
It was good talking with you today.
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Old 03-03-2011 | 06:45 PM
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It is a 320 Efi set up, be warned, most parts are nla. I had one in my 21ft. Rinker and had a problem running lean, burnt a piston. now running carb on new longblock.
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Old 03-03-2011 | 06:59 PM
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my boat came with those motors they run rich at idle alot of soot on the transom other than that they ran pretty good until I blew one last summer and replaced them with 383s and carbs if you buy it I have 2 sets of everything for the injection that I plan on trying to sell in the spring
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