1986 power head source

JVG1

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Oct 27, 2018
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I have a cracked power head
Anyone know where I can find a rebuild power head? I have searched the web. No luck
1986 black max. 175hp
 

Dukedog

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Oct 6, 2009
Messages
2,765
Bass Boat Central, Scream and Fly, Face Book (high performance boating), Chris Carson Marine (Florida)... you may have to go up or down (150 to 200) on horse power and size (2.0 to 2.5) for a replacement?.. jus do ya research on anything, anyone ya might find!!!.. lotta butt-heads out there now days.
 

Scott Danforth

Grumpy old guy who plays with boats
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Jul 23, 2011
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would help to know where you live. plenty of rebuilders in every major location.
 

Chris1956

Supreme Mariner
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Mar 25, 2004
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iBoats used to have links to rebuilders. I bought an inline 6 150HP block from one of them
 

JVG1

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Oct 27, 2018
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I am in California
Thanks for the recommendations. I looked online and did not find any that far back. Plenty from 92 and up. Nothing for 86
I will keep looking. Thank you
 

JVG1

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Oct 27, 2018
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What parts will enter change between the 150 hp and 175? I found a 150 hp
Both 86 blackmax
I will get serial number tonight
Thank you
 

Dukedog

Commander
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justa 'bout everything BUT block half, pistons, rings, center main bearings (different crank) .. as for everything else ya gotta know tha difference, but can be used.. tha 150 is a 2.0 steel sleeve motor and your 175 is a 2.4 chrome (same as 200) bore motor which is tha MAIN difference
 

Faztbullet

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Mar 2, 2008
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None of the reman companies I know of even offer a 2.4 anymore...best bet is to find a older 2.4L Xr4 power head if possible. From the prices I have seen for a reman powerheads you may be better to part it out and buy a complete running 2.5 as prices are close to same.
 

JVG1

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Oct 27, 2018
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How does one identify the difference between a long shaft 1986 black max and a short shaft?
 

Chris1956

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Mar 25, 2004
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A short shaft motor is for a 15" transom. 15" transoms are found on Jon and aluminum semi vee boats 14- 16 feet and under. Likely Black Max's, being higher HP never came in that length.

Long Shaft motors are for a 20" transom. There will also be a fair number of Black Max Xl shaft motors.

Which length do you need?
 

JVG1

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Oct 27, 2018
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I will have to check. I believe it’s a 20” shaft
It’s on a 1987 ranger bass boat 370v
 

Dukedog

Commander
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Oct 6, 2009
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jfyi.. merc "letter" info for shaft lengths..
XXL..... 30"
XL........ 25"
L........... 20"
S........... 15" high performance offshore on V6
 

JVG1

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Oct 27, 2018
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11
Not finding much for power heads. Might have to get a different outboard or buy a new boat
 
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