lucasmahony
Member
I purchased a 1991 2400ssl Maxum with a 7.4L/bravo one towards the end of last season. Had a handful of good outings last year, and was hoping the same for summer 2019. Winterized it and stored it away for the Michigan winter.
Got it out of storage this year and it ran great all of June, and then I started having issues in July. Somehow the engine took on water and I did not realize it (my guess is blown head gasket), out at the sandbar starter would only make clunking noise, finally got it started and it was knocking really bad so I think I broke a piston connecting rod. Turned it off, got towed back and brought it home. The engine oil was a milkshake and about 3” high on dipstick, pulled plugs and #8 cylinder poured out water, at this time engine would not turn by hand either (seized/hydrolocked). So I started looking at options, really did not want to pay a shop thousands and thousands to rebuild.
I found on Craigslist a 7.4 carbed engine out of a 1997 Baja that the owner had just replaced with a 502. I went out and bought it as a replacement. Pulled the old engine out with a help of my neighbor and a steel gantry he welded together for his boat engine swap.
Pretty much everything is swapping over fine except the fuel pump. The original big block has the hole mounted (bravo style?) mechanical fuel pump that’s mounted next to the raw water pump. The new block does not have this hole in the block, so I need an electric fuel pump. I have found a few online and would like input on which one I should go with, I will attach links. The new engine does have an Edelbrock high rise intake, so not sure if that matters on which fuel pump I choose (may need higher psi?). I realize I need to wire in a oil safety switch to kill fuel pump if engine stalls as well.
I appreciate any input, and will keep updated through this process.
https://www.summitracing.com/parts/hly-712-801-1/
https://www.summitracing.com/parts/crt-p4389
https://www.summitracing.com/parts/dfp-fa0004/
Got it out of storage this year and it ran great all of June, and then I started having issues in July. Somehow the engine took on water and I did not realize it (my guess is blown head gasket), out at the sandbar starter would only make clunking noise, finally got it started and it was knocking really bad so I think I broke a piston connecting rod. Turned it off, got towed back and brought it home. The engine oil was a milkshake and about 3” high on dipstick, pulled plugs and #8 cylinder poured out water, at this time engine would not turn by hand either (seized/hydrolocked). So I started looking at options, really did not want to pay a shop thousands and thousands to rebuild.
I found on Craigslist a 7.4 carbed engine out of a 1997 Baja that the owner had just replaced with a 502. I went out and bought it as a replacement. Pulled the old engine out with a help of my neighbor and a steel gantry he welded together for his boat engine swap.
Pretty much everything is swapping over fine except the fuel pump. The original big block has the hole mounted (bravo style?) mechanical fuel pump that’s mounted next to the raw water pump. The new block does not have this hole in the block, so I need an electric fuel pump. I have found a few online and would like input on which one I should go with, I will attach links. The new engine does have an Edelbrock high rise intake, so not sure if that matters on which fuel pump I choose (may need higher psi?). I realize I need to wire in a oil safety switch to kill fuel pump if engine stalls as well.
I appreciate any input, and will keep updated through this process.
https://www.summitracing.com/parts/hly-712-801-1/
https://www.summitracing.com/parts/crt-p4389
https://www.summitracing.com/parts/dfp-fa0004/