Engine swap mercruiser v6 4.3 lt.

[LouisNoel]

I need to replace one of my engine i have Searay Sundancer 1998 twin mercruiser v6 4.3 lt. i was offer a V6 4.3 lt. comming out of a S-10 XTREME 1999 is it a good choice and what else should i look for ?

 

[Scott Danforth]

you can use the short-block and heads from the S-10 (not a complete motor)

you will need marine head gaskets and brass core plugs

all other things bolted to the motor must be marine.

this includes:
water circulating pump
all rotating electrics (starter, alternator)
intake manifold and carb
front brackets, pulleys, accessories
fuel system
ignition system
oil pan

if the S-10 had a manual trans, you can use the flywheel, if not, you need to swap over that too.

highly recommended to replace the coupler if the motor is out.

i suggest new manifolds and elbows.

 

[alldodge]

It should work, you in salt or fresh water, and open or closed cooling ?

 

[JoLin]

If the boat's in salt, I'd replace the Y-pipe while the engine is out, too. At 20 years it's living on borrowed time.

My .02