I changed my engine from a chevy 230 inline 6 cylinder to a 258 ( i think) in line 6.
Question is what is the approximate hp and recomended wide open throttle rpm.
And what pictch prop. Right now I have a 15 and it will rev up 5500
Full Version: 64 Searay
Do you have the 900? The 230 engine was rated at 150hp, the 250 was rated at 160-165hp. I don't know what the rpm's are suppose to be for either engine at WOT but you can figure loosing roughly 200 rpm per 1 increase in prop pitch.
The polaris is the 900, and its fast. Thanks for the input on the Searay.
QUOTE(joesale @ Jul 28 2007, 10:03 PM) 
The polaris is the 900, and its fast. Thanks for the input on the Searay.
Actually I was refering to the Sea Ray. I believe they had a models named the 800 and 900 back then
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