88 Merc 70 HP

[imported_Lake_Rat]

Is it possible to put a larger power head on my 88 70 horse?

 

[WillyBWright]

Re: 88 Merc 70 HP

Welcome to iboats. <br /><br />That would be the smallest horsepower they got out of that block. 70, 75, 80, and 90Hp came from the same basic block. So any of those should fit your midsection. The 4-cylinder inline 100, 115, and 125Hp should also fit that leg if I'm not mistaken. They're largely the same with an extra cylinder. Cost is likely to be prohibitive in any of those scenarios and there may be differences in the exhaust chamber. What is your boat rated for?

 

[imported_Lake_Rat]

Re: 88 Merc 70 HP

Originally posted by WillyBWright:<br /> Welcome to iboats. <br /><br />That would be the smallest horsepower they got out of that block. 70, 75, 80, and 90Hp came from the same basic block. So any of those should fit your midsection. The 4-cylinder inline 100, 115, and 125Hp should also fit that leg if I'm not mistaken. They're largely the same with an extra cylinder. Cost is likely to be prohibitive in any of those scenarios and there may be differences in the exhaust chamber. What is your boat rated for?

 

[imported_Lake_Rat]

Re: 88 Merc 70 HP

Originally posted by WillyBWright:<br /> Welcome to iboats. <br /><br />That would be the smallest horsepower they got out of that block. 70, 75, 80, and 90Hp came from the same basic block. So any of those should fit your midsection. The 4-cylinder inline 100, 115, and 125Hp should also fit that leg if I'm not mistaken. They're largely the same with an extra cylinder. Cost is likely to be prohibitive in any of those scenarios and there may be differences in the exhaust chamber. What is your boat rated for?

 

[imported_Lake_Rat]

Re: 88 Merc 70 HP

I'm not sure what the rating is. It is on a Lowe 24 ft. pontoon. It runs ok but I was thinking about future upgrade. The lower unit has been rebuilt. I bought in at the end of last summer.