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Old 06-03-2018, 09:33 PM
Yeaitsslo Yeaitsslo is offline
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Any way to tell if you have the 285hp 351?

I have a 91 prostar with the powerslot. I had assumed it was all original motor by how it looked, but after talking to a few people and seeing how well the motor pulls Iím wondering if it had been replaced at some point if itís life? With a 4 blade acme Iím pulling a pretty solid 46 47mph shown on gps. I was only thinking Iíd get 41 42mph. Hole shot is too be expected.
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Old 06-03-2018, 09:45 PM
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mikeg205 mikeg205 is offline
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Old 06-03-2018, 09:50 PM
Yeaitsslo Yeaitsslo is offline
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Originally Posted by mikeg205 View Post
Need a picture

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Picture of?
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  #4  
Old 06-03-2018, 09:53 PM
david_ski david_ski is offline
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Quote:
Originally Posted by Yeaitsslo View Post
Picture of?
Picture of the engine. 285HP has GT40 heads
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  #5  
Old 06-04-2018, 08:37 AM
occva occva is offline
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GT 40 heads will have three bars cast into the head. GT 40P head will have four bars cast into the head.
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  #6  
Old 06-04-2018, 09:28 AM
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JimN JimN is offline
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A well maintained engine can last a long time- I have had cars with 189K and 196K, a pickup that probably has over 300K and is still on the road, owned by someone else. I have no idea how many miles were on it when I got it. The engine was very strong when I sold it 12 years after buying it (sold it in 2012). My cargo van just hit 190K and it runs great, too.
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Old 06-04-2018, 10:00 AM
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lakedrum03 lakedrum03 is offline
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  #8  
Old 06-04-2018, 10:41 AM
88 PS190 88 PS190 is offline
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Quote:
Originally Posted by occva View Post
GT 40 heads will have three bars cast into the head. GT 40P head will have four bars cast into the head.


Yup if you google GT 40 heads they will show you what the 3 bars are. Then see if the heads look that way - if so you have the high output engine.
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  #9  
Old 06-04-2018, 11:25 AM
Yeaitsslo Yeaitsslo is offline
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Originally Posted by 88 PS190 View Post
Yup if you google GT 40 heads they will show you what the 3 bars are. Then see if the heads look that way - if so you have the high output engine.
Gotcha. When i get down to the boat at the lake Iíll take a look. Thatís the only difference in the 240hp motors?
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  #10  
Old 06-04-2018, 11:35 AM
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starman205 starman205 is offline
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Was that GPS measured MPH? Oops just re-read the original thread. Answered my own question
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