1987 mercruiser 5.7 dry weight?

[Lwarden]

Im getting ready to pull my 5.7 mercruiser engine and I need to know the approx dry weight so when I build my gantry I can be sure it will pull and hold the weight...Thanks.

 

[Nivekt]

Re: 1987 mercruiser 5.7 dry weight?

The long block is about 575 lbs. When you add on all the accessories, manfolds, etc. You looking at around 700 lbs max I would think. Here are some pictures of my gantry and my 5.7 with exhaust housing and stuff hanging from it. The gantry didnt stress at all.

The posts are 10' 4 x 4 and the "I" beam is two 10' 2 x 8's lag screwed together and then sandwiched on the ends by 2 x 4's with all thread. All the lumber and hardware was about $100 and the chain hoist is a 1 ton I got off Ebay for $30 shipped. I screwed some casters on one end of each side so I could tilt it on its side and roll it around.

 

[Lwarden]

Re: 1987 mercruiser 5.7 dry weight?

Nice! exactly what I had in mind, how tall is the beam off the ground and how tall is the rear of your boat off the ground?

 

[Nivekt]

Re: 1987 mercruiser 5.7 dry weight?

The bottom of the beam is 10 feet off the ground. I believe the highest point of the rear of the boat with the engine dog house down is about 53 or 58 inches. I cant remember exactly. I had to pull the motor, back the boat up so I could close the dog house, then hoist the engine up a little more to fully pull the boat out and clear the engine. The gantry is plenty high for my setup and the chain hoist has 7 feet of chain to get it down to ground level and on to my engine stand.